National Building Code 2004 (Deem to satisfy)

NATIONAL BUILDING CODE OF ETHIOPIA

NBCE 000 -

CONTENTSPage

1. GENERAL

1A. Short Title …………………………………………………………….9

1B. Scope…………………………………………………………………. 9

1C. Definitions…………………………………………………………………..10

1D. Occupancy and function………………………………………………….. 16

2. ADMINSTRATION

2A. APPLICATION FOR APPROVAL OF PLANS

2A1. Submittals………………………………………………………….. 19

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2A2. Approval of Plans…………………………………………………. 19

2A3. Rejection of Plans………………………………………………….20

2A4. Plan Review Period………………………………………………… 20

2A5. Planning Consent………………………………………………….. 20

2A6. Validity………………………………………………………………. 21

2A7. Deemed - to - SatisfyRequirements……………………………… 21

2B. ENFORCEMENT

2B1. Building Official………………………………………………………24

2B2. Delegation…………………………………………………………… 24

2B3. Appeals……………………………………………………………… 25

2B4. Non - Compliance ………………………………………………….. 25

2B5. Deemed - To - Satisfy Requirements ………………………………25

2C. INSPECTION

2C1. Notices…………………………………………………………….. 26

2C2. Inspectors…………………………………………………………... 26

2C3. Materials…………………………………………………………….. 27

2C4. Occupancy permit …………………………………………………… 27

2C5. Deemed - to - Satisfy Requirements…………………………………27

2D. FEES

2D1. Plans Approval Fees…………………………………………………. 31

2D2. Plan Review Fees…………………………………………………….. 31

2D3. Inspection Fees………………………………………………………… 31

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2D4. Fee Refunds……………………………………………………………. 31

2E. FINES

2E1. General Requirements ………………………………………………32

2E2. Deemed - to - Satisfy Requirements……………………………...32

2F. TEMPORARY BUILDINGS

2F1. General Requirement………………………………………………. 33

2F2. Deemed - to - Satisfy Requirements…………………………….33

2G. DEMOLISHING & REPAIR

2G1 General Requirement……………………………………………… 34

2G2. Deemed - to - Satisfy Requirements…………………………….34

2H. PROFESSIONAL SERVICE

2H1. General Requirement……………………………………………… 35

2H2. Deemed - to - Satisfy Requirements……………………………..35

2I. CONSTRUCTION REQUIREMENTS

2I1. General Requirement……………………………………………… 37

2I2. Deemed - to - Satisfy Requirements……………………………37

2J. EXEMPTION, DISPENSATION & RELAXATION.

2J1. General Requirement……………………………………….38

2J2. Deemed - to - Satisfy Requirements……………… 38

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3. LAND USE

3A. LAND USE

3A1 General……………………………………………………… 39

3A2 Deem to Satisfy Requirements…………………………..40

4. SPACE STANDARDS

4A. SPACE STANDARDS

3A1 Rooms and Buildings……………………………………… 42

3A2 Deem to Satisfy Requirements……………………………42

5. BUILDING ELEMENTS

5A. EXCAVATIONS

5A1 General Stability Requirements…………………………….44

3A2 Deem to Satisfy Requirements……………………………..44

5B. FOUNDATIONS

5B1 General Requirements……………………………………….. 45

3B2 Deem to Satisfy Requirements……………………………….45

5C. FLOORS

5C1 General Requirements……………………………………….. 47

5C2 Deem to Satisfy Requirements……………………………….47

5D. WALLS

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5D1 Structural Stability………………………………………………. 48

5D2 Water Penetration………………………………………………. 48

5D3 Thermal Insulation………………………………………………. 48

5D4 Fire Resistance…………………………………………………. 48

5D5 Sound Insulation…………………………………………………. 48

5D6 Deem to Satisfy Requirements…………………………………. 48

5E. ROOFS

5E1 Structural Stability…………………………………………………. 49

5E2 Fire Resistance…………………………………………………….. 49

5E3 Weather Resistance………………………………………………..49

5E4 Deem to Satisfy Requirements……………………………………. 49

5F. STAIR WAYS AND RAMPS

5F1 General Requirements………………………………………………50

5F2 Fire Requirement……………………………………………………..50

5F3 Deem to Satisfy Requirements……………………………………… 50

5G. GLAZING

5G1 Type and Fixing of Glazing…………………………………………… 52

5G2 Deem to Satisfy Requirements……………………………………… 52

5H. LIFTS

5H1 General…………………………………………………………………. 53

5H2 Fire Resistance………………………………………………………… 53

5H3 Deem to Satisfy Requirements……………………………………….53

5I. HANDRAILS AND PARAPETS

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5I1 General…………………………………………………………………. 55

5I2 Deem to Satisfy Requirements……………………………………….55

6. STRUCTURAL DESIGN

6A. STRUCTURAL DESIGN

6A1 Design Requirements…………………………………………… 56

6A2 Deem to Satisfy Requirements………………………………… 56

7. LIGHTING AND VENTILATION, SPACE HEATING

7A. LIGHTING & VENTILATION

7A1 Lighting and Ventilation Requirements………………………….57

7A2 Special Provision of Natural Lighting…………………………….58

7A3 Design of Artificial VentilationSystems…………………………. 58

7A4 Artificial Ventilation Plant…………………………………………..58

7A5 Deem to Satisfy Requirements…………………………………… 58

7B. SPACE HEATING

7B1 Design, Construction and Installation…………………………….64

7B2 Deem to Satisfy Requirements……………………………………. 64

8. ELECTRICAL INSTALLATIONS

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8A. ELECTRICAL INSTALLATIONS

8A1 Electrical Installation Requirements……………………………….64

8A2 Deem to Satisfy Requirements……………………………………..64

9. WATER SUPPLY AND SANITATION

9A. WATER SUPPLY

9A1 Water Supply Requirements ………………………………………. 66

9A2 Deem to Satisfy Requirements……………………………………..66

9B. DRAINAGE

9B1 Compulsory Drainage of Buildings…………………………………68

9B2 Design of Drainage Installations……………………………………69

9B3 Control of Objectionable Discharge………………………………..69

9B4 Industrial Effluent…………………………………………………….. 69

9B5 Disconnections………………………………………………………… 69

9B6 Unauthorized Drainage Work………………………………………. 70

9B7 Inspection and Testing of DrainageInstallations………………… 70

9B8 Deem to Satisfy Requirements……………………………………. 70

9C. NON-WATER-BORNE MEANS OF SANITARY DISPOSAL

9C1 Means of Disposal…………………………………………………… 103

9C2 Permission……………………………………………………………. 103

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9C3 Construction, Siting and Access……………………………………103

3C4 Deem to Satisfy Requirements……………………………………..103

9D. STORM WATER DISPOSAL

9D1 Storm water Disposal Requirements……………………………….105

9D2 Savings………………………………………………………………… 105

9D3 Deem to Satisfy Requirements……………………………………… 105

9E. REFUSE DISPOSAL

9E1 Provision of Areas…………………………………………………….. 107

9E2 Access to Areas………………………………………………………. 107

9E3 Refuse Chutes………………………………………………………… 107

10. FIRE PROTECTION AND INSTALLATIONS

10A. FIRE PROTECTION

10A1 General Requirements………………………………………………. 107

10A2 Deem to Satisfy Requirements……………………………………… 108

10B. FIRE INSTALLATION

10B1 Fire Installation……………………………………………………….. 118

10B2 Supply of Water………………………………………………………. 118

10B3 Deem to Satisfy Requirements………………………………………118

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11. FACILITIES FOR THE PHYSICALLY IMPAIRED PERSONS

11A1 General………………………………………………………………. 120

11A2 Deem to Satisfy Requirements……………………………………. 120

12. MISCELLANEOUS

12A. SITE OPERATIONS

12A1 General Requirement……………………………………………….125

12A2 Deem to Satisfy Requirements……………………………………. 126

12B. SIGNS AND OUT DOOR DISPLAY STRUCTURES

12B1 General Requirements…………………………………………… 127

12B2 Deem to Satisfy Requirements ………………………………… 128

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NBCE 000 - 2004

NATIONAL BUILDING CODE OFETHIPIA

1. GENERAL

1A SHORT TITLE

These Regulations may be cited as the National Building Codeof Ethiopia 2003 G.C ,hereinafter referred to as '' this Code''

1B SCOPE OF APPLICATION

This Proclamation shall apply to:

1/ Construction or modification of buildings or alteration oftheir use within an urban center.

2/ Erection of Buildings of 16 m height and where there are 100or more housing units which could be used for industrial orcommercial scale agricultural occupancy out side the Urbancenters.

3/ This Proclamation shall not apply to the following:

a) any building having had a building permit andcompleted on or before the effective date of thisproclamation.

b) any building which is under construction with abuilding permit issued before the effective date ofthis proclamation,

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C) any building which the council of ministers hasexempted from the application of this Proclamation forreasons of national security.

4/ Notwithstanding sub-article (2) (b) herein, the localauthority may require, a building under construction with abuilding permit issued before the effective date of thisproclamation if such construction is not completed withinthree years of the effective date of this Proclamation.

1C DEFINITIONS

'' Ablution'' a room or place for body cleansing."access door" means an entrance door to an emergency route;"air conditioning system" means a system of mechanical ventilationwhere air that has been cleansed is supplied to a building underconditions of controlled temperature, humidity, distribution andmovement; "air duct" means any pipe, tube, conduit or enclosed spaceused or to be used in any building for the transmission of air in anartificial ventilation system;'' alteration'' a change from one occupancy to another. An additionor deduction of the whole or part of a building or a change in theinternal elements of a building that would affect the Coderequirements of a building. ''alternating tread stairs'' stairs where wide and narrow treadsalternate side by side.'' apparatus'' electrical machines, appliances, fittings and the likeserved by electrical conductors. "applicant" means any person who makes an application for ;

(a) approval by any local authority(b) approval by the review board on appeal to the review

board " appropriate Government Organ'' means a government organ of federalstate the region or the city in charge of implementing thisproclamation laws.

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'' approved person'' a person with the appropriate professionalpractice license duly appointed by the Building Official to reviewplans. "artificial ventilation system" means a system in which air is causedto circulate through a room by means of a mechanical apparatus whichforces air into or extracts air from such room; "backflow" means the flow of water in any pipe in a directionopposite to the normal direction of flow; "back vent" means a ventilating pipe connecting a branch dischargepipe, to which un vented fixture discharge pipes are connected, to avent stack or to a stack vent;'' balcony'' a horizontal projection, including a hard rail, orbalustrade to serve as an outside space. "balustrade wall" means a wall serving the purpose of a balustrade;'' basement'' the lower store of building having a floor below theground level. '' Board'' the building Appeals Board appointed by the localauthority '' building'' any permanent or temporary structure for whatsoeverpurpose and constructed of any material and every part thereof whetherused as human habitation or not. Tents shall not be considered asbuildings. '' building height'' the vertical distance measured, in the case offlat roofs, from the average level of the center line of the adjoiningstreet to the highest point of the building adjacent to the streetwall; and in the case of pitched roofs, up to the point where theexternal surface of the outer wall intersects the finished surface ofthe sloping roof; and in the case of gables facing the road, the midpoint between the ridge level and the fascia. '' building line'' the line up which the plinth of a buildingadjoining a street may extend. '' building Official '' an official appointed by a Local Authorityto implement the National Building Code within its Administrativelimits. '' cable'' a piece of single insulated conductor or two or moreconductors, each covered by electrical conductors. '' call indicator'' visual and audible device in a lift car used toindicate lift landings to the attendant on landings from which callshave been made. '' Category ''A'' building '' one storey building with free span lessthan 10m. " " B" " Buildings with a free span ofmore than 10m. or of reinforced concrete or steel frames, or of two or

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more storeys, not covered in category "C" . Large Scale buildingdevelopment of category A. " Category "C" buildings" public & institutional buildings factories,workshops & buildings with a height to the top most floor of more than12m. "capacity" of any storage tank means the volume of such tankbetween the operating level of the water contained in such tank andthe invert of the outlet from the tank;'' cavity wall'' a wall to two inner and outer leaves, with an airspace in between. "carport" means a building intended to provide shelter for a motorvehicle having a roof but having walls on not more than two sides; '' chimney'' a hollow vertical to materials means that the materialis not capable of withstanding the non-combustibility test publishedor approved by recognized international standard institutes. ''circuit'' a line of a conductor or conductors conveying electricenergy and forming a system or a branch of system. '' circuit breaker'' a device used to interrupt the flow ofelectrical energy by breading the current automatically, '' Combustible'' in relation to materials means that the material isnot capable of withstanding the non-combustibility test published orapproved by recognized international standard institutes. '' Compartment wall/floor'' a wall/floor which divides a buildinginto compartments for the purpose of fire resistance complying withthe requirements for such purpose. "common drain" means that portion of a drain which conveys sewageother than or in addition to that sewage which emanates from the sitethrough which such drain runs; "communication pipe" means any pipe in a water supply system to whichany water installation is connected;''conductor'' a wire or cable intended to convey electric energy. ''connection'' the junction of waste water drain, surface water drainor sewer from buildings with public sewer, treatment works, cesspoolor water courser. ''connection box'' a box made of an insulating material and whereelectric wires or cables are interconnected or joined. '' covered area'' ground area covered by building immediately abovethe plinth level but does not include the spaces covered by overhangsin top floors. ''dangerous building'' a building or structure that is structurallyunsafe or constitutes a special fire hazards or health risks. "dark room" means any room used for the purposes of handling orprocessing light sensitive material;

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"dead-end corridor" means any corridor along which it is possible totravel only in one direction in order to reach a feeder route oremergency route; ''dead load'' loads on a structure consisting of the weight ofmembers of the structure, the weight of all materials of constructionto be permanently incorporated into the building and the weight ofpermanent equipment and force due to prestressing. "deemed-to-satisfy rule" (or rule) means a non mandatory provisionwhich describes a method of design or construction that is deemedto comply with a particular functional regulation;''detached building'' a building whose walls and roofs are independentof any other building with open spaces on all sides. ''distribution board'' an assembly of one or more fuses arrangedfor the distribution of electric energy to load points or to othersub-circuits. ''dispensation'' making a certain clause of the National BuildingCode in applicable for a certain locality or for a particular buildingproject. ''documents'' any plans, reports, estimates and any other technicaldocumentation required or prepared in connection with the design andconstruction of buildings. '' drain'' a line of pipes including all fitting, such as manholes,inspection chambers, and traps used for the drainage of buildings oryards which form part of buildings. '' drainage'' the process of removing liquid waste by a systemconstructed for the purpose. "drainage installation" means any installation vested in the owner ofa site and which is situated on such site and is intended for thereception, conveyance, storage or treatment of sewage, and may includesanitary fixtures, traps, discharge pipes, drains, ventilating pipes,septic tanks, conservancy tanks, sewage treatment works, or mechanicalappliances associated therewith;"dwelling house" means a single dwelling unit and any garage and otherdomestic outbuildings thereto, situated on its own site;"dwelling unit" means a unit containing one or more habitable roomsand provided with adequate sanitary and cooking facilities; '' earthing'' wwired connection to the ground by means of electrode

or other means. "emergency route" means that part of an escape route which provides

fire protection to the occupants of any building and which leads toan escape door;

"escape door" means that door in an escape route which, at groundlevel, leads directly to a street or public place or to any approvedopen space which leads to a street or public place;

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"escape route" means the entire path of travel from the furthest pointin any room in a building to the nearest escape door and may includean emergency route;

''exemption'' making the whole of the National Building Codeinapplicable for a certain locality or for certain building types.

''exit'' a passage or means of egress from any building, storeysor floors to a street or other open space of safety. "feeder route" means that part of an escape route which allows travelin two different directions to the access doors to at least twoemergency routes;

''fire assembly'' assembly of building components such as firedoors, fire windows and all ther required hardware to fix suchcomponents.

''fire door'' a door and its assembly so instructed and assembledin place as to give protection against the passage of fire.

''fire resistance'' in relation to elements of structure meansthat capability of an element of structure to withstand the action offire for a specified period.

''fire resistance rating'' the length of time in hours that abuilding material or assembly of building elements will withstand theeffects of the standard firs exposure and meet specific conditions asset out by a standard test.

''fire separation'' the distance measured from a building to anyother building on the same site, or from an adjoining site or a siteon the opposite side of a street that the building is facing.

''fire spread'' a barrier or seal which would prevent or retardthe passage of smoke or flame within a cavity or around a pipe orduct where it passes through a wall or floor, or a junction betweenelements of structure.

''fire stop'' a barrier or seal which would prevent or retardthe passage of smoke or flame within a cavity or around a pipe orduct where it passes though a wall or floor, or a junction betweenelements of structure.

''fire walls'' a wall constructed for the purpose of subdividingbuildings to restrict the spread of fire.

''fitting'' installation devices such as plugs, boxes, clamps,switches and the like.

''fixtures'' an electrical apparatus including lighting. ''flight'' set of consecutive steps of a stair or a continuous slopeof a ramp.

''floor area'' floor area shall mean usable covered area of abuilding at any floor level.

"foundation" means that part of a building which is in direct contactwith and is intended to transmit loads to the ground;

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"foundation wall" means that portion of a wall between the foundationand the lowest floor above such foundation; "free-standing wall" means a wall, not being a retaining wall,without lateral support; ''fuse'' a device that breads or opens the circuit when the currentthrough it exceeds the designated valve. "garage" means an enclosed area which is used or intended to be usedfor the parking, storing, servicing or repairing of motor vehicles

''habitable room'' a room used or occupied or designated foroccupancy by one or more persons.

''insulation'' a non-conducting material of electricity enclosing orcovering, disconnection or supporting a conductor.

''internal lining'' any materials of which the wall or ceilingsurface is made and any finish applied during or after manufacture.

''live load'' loads on a structure consisting of the weight ofmembers of the structure, not including wind load, seismic load ordead load.

''local authority'' shall mean a municipality of a town or a woredacouncil empowered by the Regional council to implement thisregulation. the body empowered by the Minister to enforce this Code. ''manhole'' an opening constructed within a drain or sewer for thepurpose giving access for inspection, cleaning and other maintenance,fitted with a suitable cover.

''masonry wall'' any form of wall construction composed of stone,bricks, blocks or other similar units or a combination of thesematerials laid up unit by unit in mortar.

''mezzanine floor'' an intermediate floor between the ground floorand the first floor, limited to not more than 1/3 the area of thefirst floor.

''minister'' shall mean the Minister of Federal affairs. "natural ventilation" means the movement of air through a buildingdue to natural causes; ''non-combustibility'' of a material means that the material willnot ignite or burn when subjected to fire or has a structural baseof non-combustible material but with surfacing material of sufficientthickness and flame spread rating.

''non-load-bearing wall'' a wall which supports no load otherthan its own weight.

"non-structural wall" means a wall which does not form part of astructure but which may from time to time be subject to forces otherthan its own weight;

" obstruction" means any building or other object which partially orcompletely intersects any zone of space serving a window but shallnot include any narrow object such as a pole or railing which does

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not materially obstruct the entry of light and air to the openingconcerned;

''ocuupancy; use group'' the principal occupancy for which abuilding or part of it is used.

''opening'' - a window, door or other opening. ''open space'' an area, forming an integral part of a plot, leftopen to the sky.

''parapet wall'' that part of any wall entirely above theadjoining roof surface.

"partition" means an interior construction less than one story inheight and is generally of a light construction and is demountable; "partition wall" means a non-structural internal wall extending tothe ceiling and constructed for the purpose of subdividing a space; ''plans'' any drawings, models, sketches rendering showing theextent,nature,size of a buildings, and the materials and method ofassembly to be used. ''plinth area'' the built-up covered area measured at the floorlevel of the ground floor.''plot'' a parcel of land enclosed by definite boundaries. "pit latrine" means a closet placed over or adjacent to an excavationwhich is of adequate depth;'' pitch line'' imaginary line drawn from the landing of a stiar way to connect the nosing of all the treads of a flight.''power supply Authority'' the authority, such as EEPCO, which is empowered by law to produce, transmit and supply electricity. ''private stair'' a stairway intended solely for use by one dwelling."public place" means any square, park, recreation ground or open space''public stair'' a stairway intended for use by the public. ''protected shaft'' a stairway, lift, escalator, chute, duct or othershaft which enables persons, thing or air to pass between differentcompartments and complies with the fire protection requirements forsuch routes. ''ramp'' a continuous slope steeper than 1 in 20 used to link twolevels. ''region'' regional council ''woreda council'' shall have themeanings assigned to them in prodametion no--- 199---'' relaxation'' lowering or modifying the requirements of certainclauses of deemed- to-satisfyrules Code with regard to certainlocalities and certain building types or for certain buildingprojects. "retaining wall" means a wall intended to resist the lateraldisplacement of materials;''room height'' the vertical distance measured from the finishedfloor surface to the finished ceiling surface.

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"safety distance" means the distance provided between any building andthe lateral boundary of the site, or where there are two buildings onthe same site, the distance provided between each such building and anotional boundary line between them, so, that spread of fire from onebuilding to another due to effect of radiant heat will be minimized;''separating wall'' a wall or part of a wall which is common to

adjoining buildings and which restricts the spread of fire from onebuilding to the other. "septic tank" means a tank designed to receive sewage and to retain

it for such a time and in such a manner as to secure adequatedecomposition;''semi-detached building'' a building detached on three sides with

open space as provided.''service'' the conductors and equipment required to deliver

electric energy from the external electric supply system to the wiringsystem of the premises served. "service pipe" means any pipe which is part of a water installation

and which is connected to any communication pipe;''set-back line'' a line, usually parallel to the plot boundaries,

beyond which nothing can be constructed towards the plot boundaries. "sewage" means waste water, soil water, industrial effluent and other

liquid waste, either separately or in combination, but does notinclude storm water;''sewer'' a closed drain for the purpose of conveying soil waste and

other water borne waste. "site" means any erf, lot, plot, stand or other piece of land on whicha building has been, is being or is to be erected;"''spiral stair'' a stair describing a helix around a central column

or a void. ''stair'' a succession of steps and landings used to reachanother level on foot. " stairway" means any part of a building which provides a routeof travel between different levels in such building and is formedby a single flight or by a combination of two or more flights andone or more intervening landings; ''soakaway'' a pit suitably prepared to receive soil wastewater or partially treated sewage for seepage into thesurrounding ground. ''socket outlet'' a device used to connect portable lighting orother current-using apparatus to the supply wiring. ''stop order'' an order given by a buildings inspector or aBuilding Official to discontinue activities on a buildingconstruction site.

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''soil waste'' the discharge from water-closets urinals, sinks,stables and similar appliances. ''soil pipe'' means a discharge pipe which conveys water;'' Soil branch'' means a branch discharge pipe which conveys soilwater;''Soil fixture'' means sanitary fixture which receives anddischarges soil water.'' soil water'' means liquid containing excreta; '' Spiral stair way'' means any succession of tapered treadsforming a curved stairway which extends as a single flight fromone floor to another and which has a minimum radius of curvatureof less than 100 mm; '' stairway'' means any part of a building which provides aroute of travel between different levels in such building and isformed by a single fight or by a combination of two or morefights and one or more intervening landings; ''storey'' the portion of a building between two floors orbetween a floor and its ceiling. "storm water" means water resulting from natural precipitation oraccumulation and includes rainwater, surface water, subsoil wateror spring water;'' storm water drain'' means a pipe, conduit or surface channelsituated on a site. Which is used to convey storm water to asuitable point of storm water; '' storm water sewer'' means a pipe, conduit or channel, ownedby or vested in the local authority, which is used forthe conveyance of storm water';"street" means any street, road, footpath, sidewalk, subway or bridge "street boundary", in relation to a site, means the boundary of suchsite which abuts any street;''street line'' the line defining the side limits of a street.''street level;grade'' the official established elevation or grade ofthe center line of the street. "structural" means relating to or forming part of any structuralsystem;"structural system", in relation to a building, means the system ofconstructional elements and components of any building which isprovided to resist the loads acting upon it and to transfer such loadsto the ground upon which the foundation of the building rests;structural wall" means a wall forming part of any structural system; ''subsoil water'' water occurring naturally below the surface of theground.

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''surface water'' run-off water from precipitation and other waterfrom the ground surface."Suspended ceiling" means any ceiling supported on a system of hangers''switch'' a device for opening or closing or changing the electricenergy in a circuits."temporary building" means any building that is so declared by theowner and that is being used or is to be used for a specified purposefor a specified limited period of time, but does not include abuilder's shed; "trap" means a pipe fitting or a part of a sanitary fixture which isdesigned to retain a water seal;"tread" means the upper surface of a step;'' Urban Center '' means any place in which a municipality hasalready been established or a locality having a population size of2000 or more inhabitants, of which 75% is engaged purely in non-agricultural activities.''urinal'' a fixture for urine disposal used by men.''vent pipe'' a pipe line installed to provide flow of air to or froma drainage system or to provide circulation of air within such asystem to protect trap seals from siphonage and back flow.''ventilating pipe'' the pipe which provides a safe out let in to theopen air for foul gases in a drain or sewer. ''wash basin'' a fixture for hand washing. ''waste pipe'' the pipe which receives waste water from sanitaryappliances. ''waste water'' water from baths, wash basins, sinks and otherappliances excluding wastes which contain human or animal excreta. ''water closes'' a fixture for hand washing. ''water heater'' an appliance used for boiling water for washingpurposed. " water installation" means an installation used or intended to beused for the conveyance or storage of water in any building or on anysite on which such building is situated and includes any pipe or anywater fitting other than any water meter vested in the localauthority;"water supply system" means any system of structures, aqueducts,pipes, -valves, pumps, meters or other appurtenances relating theretowhich are vested tin the local authority and are used or intended tobe used by it in connection with the supply of water;"wind load" means the force exerted by the action of wind

1D OCUPPANCY & FUNCTION 21

1D1. CLASSIFICATION AND DESIGNATION OF OCCUPANCIES

(1) The occupancy of any building shall be inconforming to the appropriate occupancy class given Inclassification ,shall reflect the primary function ofany building divided into two or more areas not havingthe same primary function, the occupancy of such areashall be separately classified.

(2) Notwithstanding the requirements of sub regulation(1), and area in any building which is used for anypurpose ancillary to that of any occupancyclassification contemplated in sub regulation (a)shall, subject to adequate facilities and safelymeasures being provided, not be classified as aseparate occupancy.

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TABLE 1 - OCCUPANCY OR BUILDING CLASSIFICATION

1 2

Class of Occupancy or Occupancy Building

A1 Entrainment and public assemblyOccupancy where persons gather to eat, drink, dance or particpate in other

recreation.A2 Theatrical and indoor sport

Occupancy where persons gather for the viewing of theatrical, operatic orchestral,choral, cinematiorphical or sport performances.

A3 EducationOccupancy where school children, students or other persons assemble for the purpose of tuition or learning

A4 W0rshipOccupancy where persons assemble for the purpose of worshipping

A5 Outdoor sportOccupancy where persons view outdoor sport events.

B1 High risk commercial ServiceOccupancy where a non-industrial process is carried out and where either the material handled or the process carried out is liable in the event of fire, to cause combustion with extreme rapidity or give rise to poisonous fumes, or cause explosions.

B2 Moderate risk commercial serviceOccupancy where a non-industrial process is carried out and where either the material handled or the process carried out is liable in the event of fire, to cause combustion with moderate rapidity but is not likely to give rise to poisonous fumes , or cause explosions.

B3 Low risk commercial serviceOccupancy where a non-industrial process is carried out and where neither the material handed nor the process carried out falls into the high or moderate risk category.

C1 Exhibition hallOccupancy where goods are displayed primarily for viewing by the public

C2 MuseumOccupancy comprising a museum, art gallery or library.

D1 High risk industrial Occupancy where an industrial process is carried out and where either the materialhandled or the process carried out is liable, in the event of fire, to cause combustion with extreme rapidity or give rise to poisonous fumes, or cause explosions.

D2 Moderate risk IndustrialOccupancy where an industrial process is carried out and where either the materialhandled or the process carried out is liable, In the event of fire, to cause combustion with moderate rapidity but is not likely to give rise to poisonous fumes, or cause explosions.

D3 Low risk IndustrialOccupancy where an industrial, process is carried out and where neither the material handled nor the process carried out falls into the high moderate category.

D4 Plant room

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Occupancy comprising usually unattended mechanical or electrical services necessary for the running of a building.

El Place of detentionOccupancy where people are detained for punitive or corrective reasons or because of their mental condition.

E2 HospitalOccupancy where people are cared for or treated because of physical or mental disabilities and where they are generally bed-ridden.

E3 Other Institutional (residential)Occupancy where groups of people who either are not fully fit, or who are restricted in their movements or their ability to make decisions, reside and are cared for.

Fl Large shopOccupancy where merchandise is displayed and offered for sale to the public and the floor area exceeds 250 M2

F2 Small shopOccupancy where merchandise Is displayed and offered for sale to the public and the floor area does not exceed 250 m22 .

F3 wholesalers' storeOccupancy where goods are displayed and stored and where only a limited selected group of persons is present at any one time.

Table 1 ( continued)

1 2Class of

occupancy orbuilding

Occupancy

G1 OfficesOccupancy comprising offices, banks, consulting rooms and othersimilar usage

H1

H2

H3

H4

HotelOccupancy where persons rent finished rooms, not being dwelling units

DormitoryOccupancy where groups of people are accommodated in one room.

Domestic residenceOccupancy consisting of two or more dwelling units on a single site.

Dwelling houseOccupancy consisting of dwelling unit on its own site, including agarage and other domestic out buildings, If any

J1

J2

High risk storageOccupancy where material is stored and where the stored material isliable, in the event of fire, to cause combustion with extremerapidity or give rise to poisonous fumes, or cause explosions.

24

J3

J4

Moderate risk storageOccupancy where material is stored and where the stored material isliable, in the event of fire, to cause combustion with moderaterapidity but is not likely to give rise to poisonous funs or causeexplosions.

Low risk storageOccupancy where the material stored does not fall into the high ormoderate risk category.

Parking garageOccupancy used for storing or parking of more than 10 motor vehicles.

1D2 POPULATION

(1) The population of any room or story or portion thereof shall betaken as the actual population of such room, story or portionthereof where such population is known or, where such population isnot known, the population shall be calculated from the criteriagiven in Table 2

(2) In the case of any occupancy classified as F1, where the total floor area ismore than 500m2, that portion of the floor area that is in excess of 500 m2

shall, for the purposes of calculation of population, be reduced by anamount of 20 % .

TABLE 2 - DESIGN POPULATION

1 2Class of occupancy of

room or story or portionthereof

Population

A1, A2, A4, A5 Number of fixed seats or 1 person per M2 if there are no fixed seats

E1, E3, H1, H3 2 persons per bedroomG1 1 person per 15 m2

J1, J2, J3, J4 1 person per 50 m2

C1, E2, F1, F2 1 person per 10 m2

B1, B2, B3, D1, D2, D3 1 person per 15 m2

C2, F3 1 person Per 20m2

A3 , H2 1 person Per 5m2

2. ADMININSTRATION

25

2A APPLICATION FOR APPROVAL OF PLANS

2A1 SUBMISSION OF APPLICATION AND PLANS

1/ Any person intending to construct or modify a building or toalter its use shall submit an application to the LocalAuthority.

2/ The application to construct or modify a building shallbe made on an application form prepared by the LocalAuthority and shall consist of a design and report accordingto the category of Building in question.

3/ The application shall be accompanied by a block plan showinga surveyed plan of boundaries of the plot, configuration ofroads and indicating the approximate height of buildings inadjacent plots and a location plan with a reference to mainroads and names of prominent places.

4/ The applicant shall submit proof of holding rights to theland on which the construction will take place.

5/ Submitted documents shall be sufficiently complete to theextent required to determine compliance with thisProclamation and other laws.

2A2 PLANNING CONSENT

After having received an application for a planning consentthe Building Official shall grant a written declaration forcompliance or non-compliance with the urban planning of theurban center .

2A3 APPROVAL OF PLANS

1/ The Building Official shall check submitted documents toensure compliance with the provisions of this Proclamationand other laws. Approval of plans shall not be withheld onaccount of requirements not included in this Proclamationand other laws.

26

2/ The Building Official may approve plans with commentsprovided that the comments refer to minor non-complianceand if the required rectification work can easily be carriedout during construction.

3/ Submitted documents approved by the Building Official shallbe stamped APPROVED” and shall bear a registration numberand date of approval and shall be signed by the BuildingOfficial.

4/ The Application forms submitted with documents approved bythe Building Official shall be stamped “APPROVED” in theappropriate space provided and shall bear a registrationnumber and date of approval. Comments, if any shall beentered on the form in the space provided and shall besigned by the Building Official.

5/ Upon approval, one set of duly stamped and signedapplication form and accompanying documents shall bereturned to the applicant and the other set shall beretained by the Local Authority.

6/ A copy of the signed and sealed application form andapproved plans shall be permanently displayed at thebuilding site. All original approved application forms anddocuments shall be kept in good condition and presented atany time before, and during construction, upon the requestof the Local Authority or the Building Official or anauthorized inspector.

7/ An application for approval of plans which has not beeneither approved or rejected by the Building Official withinthe time limit prescribed by Law and where 15 days haveelapsed since the applicant has served notice of intentionto start construction here in shall be deemed law.

2A4 PLANS REVIEW PERIOD

27

The Building Official shall review documents submitted andapprove or reject within a certain period of time limit ,the time limit shall be prescribed by law.

2A5 REJECTION OF PLANS

1/ Plans of a building, which do not comply with the provisionsof this Proclamation and other laws shall be rejected by theBuilding Official.

2/ Upon rejection of submitted plans the Building Officialshall state in brief which part, chapter, article or sub-article of this Proclamation or the regulations are notcomplied with, in the space provided on the applicationform. Further detailed explanations may be issued ifnecessary on separate sheets and attached to the form.

3/ An application and submitted documents rejected by theBuilding Official shall be stamped “REJECTED” and shall bearthe date and signature of the Building Official.

4/ Upon rejection of submitted plans the Building Officialshall return one copy of the duly signed and sealedapplication form and the two copies of the duly signed andsealed plans to the applicant and the Local Authority shallretain one copy of the duly signed and sealed applicationform.

2A6 CONSTRUCTION PERMIT

A plan which has been approved in accordance with Article 6of this Proclamation shall constitute a constructionpermit .

2A7 VALIDITY

28

1/ The validity of approved plans shall expire after one yearfrom the date of issue unless construction work has startedbefore such date.

2/ The validity of approved plans with which construction workhas been started within one year of date of issue shallexpire after five years from the date of issue, if theconstruction work has not been completed.

3/ Upon expiry of the validity period as set out in sub-articles (1) and (2) of this Article an application forextension of the validity period of approved plans shall besubmitted for re-approval of plans according to theprovisions of this Proclamation.

2A8 DEEMED -TO - SATISFY REQUIREMENTS

The requirements of the regulation 2A shall be deemed to besatisfied with part 2A of the NBCE 000 - 2004

2A8- 1 GENERAL

The regulation contained in part 2A shall be deemed to besatisfied where application for approval of plans comply withdeemed to satisfy rules contained in the following provisionsof this part.

2A8- 2 SUBMISSION (1) The application to construct or modify a building

shall be made on the application form furnished bythe Local Authority and shall consist of accompanyingdocuments listed in the table hereunder.

29

DEEMED -TO - SATISFY RULES

Table 1

Category

Description Document Required

A One-storey buildings with freespans less than 10.0m notcovered in categories B and C

Architectural design andsewage disposal system

B Buildings with a free span ofmore than 10.0m or of reinforcedconcrete or steel frames, or oftwo or more storeys, not covedin category C.

Large scale buildingdevelopments of Category. A

1. Architecturaldrawings and sewagedisposal system

2. Structural Design

CPublic and institutionalbuildings, factories, workshopsand buildings with a height tothe top most floor of more than12.0m.

1. Architecturaldrawings andreport.

2. structural drawings and calculations

3. Electrical drawings &report

4. Sanitary and mechanical drawings and report.

(2) Two sets of documents shall be submitted together with anapplication from filled out in triplicate. All documentsshall be prepared on standard A-Series paper submittedfolded down to A4 size.

(3) Plans, drawings and diagrams shall be drawn to a suitablescale selected from one of the following scales:

a) Site plans

1:1000, 1:500 or 1:200

30

b) Sanitary mechanical & electrical installation drawings

1:200 or 1:1 00

c) Architectural drawings

If the building is <30m - 1:50

'' '' '' '' >30m-1:100

d) General structural arrangement drawings and structural details.

1:100, 1:50 or l.:20

e) Fire protection plans

1:200, 1:1 00 or 1:50

The local authority may in circumstances deemedexceptionally, accept a scale not provided for in this subregulation.

2A8 3 PLAN REVIEW PERIOD

(1) The Building Official shall review documents submitted to himand approve or reject same within the time indicated here below.

Category A Buildings 5 calendar days

Category B Buildings 10 calendar days

Category C Buildings 15 calendar days

31

(2) The building official may extend the timelimit set in sub-rule (1) here in for an additionalperiod as here under prescribed, provided that theapplicant has been informed in writing or throughpublication of the extension of the time limit under subrule (1), before the expiry of some time limit.

Category A Buildings 5 calendar days

Category B Buildings 10 calendar days

Category C Buildings 15 calendar days

(3) Applicant shall give notice of intention to startconstruction if no response has been given by the BuildingOfficial within the time limit prescribed in Sub-rules (1)and (2) here in.

(4) An application for approval of plans which has not beeneither approved or rejected by the Building Officialwithin the time limit prescribed in sub-rules (1) and(2) here in, and where 15 days have elapsed since theapplicant has served notice of intention to startconstruction under sub article (3) herein shall be deemedapproved.

(5) The time limit for reviewing of documents, may be extendedfor an additional 15 calendar days for all categories ofbuildings with the consent of the applicant.

2A8 4 CONSTRUCTION PERMIT

1/ Construction permit shall be required to construct, addto, alter, remove or demolish a building or a structure.

2/ Approved plans, planning Consent & holding rights to land& other pertinent documents deemed necessary by the localAuthority shall be required to get a Construction permit.

2B ENFORCEMENT

2B1 BUILDING OFFICIAL

1/ Every Local Authority shall appoint a Building Official,with the required technical qualifications acquired byexperience and training to enforce, on its behalf, theprovisions of this Proclamation and other laws.

2/ The Building Official shall receive all applications forapproval of plans and issue approved plans afterascertaining full compliance with this Proclamation andother laws.

3/ The Building Official shall inspect all buildings underthe territorial jurisdiction of the Local Authority toascertain conformity to this Proclamation and otherlaws.

4/ The Building Official may be assisted by other staff ofthe Local Authority in the discharge of his duties,provided that he shall be responsible for the finalruling on applications for approval of plans andinspection reports.

5/ The Building Official is empowered to order inspectionof exempted buildings and dangerous buildings erectedbefore the effective date of this Proclamation. TheBuilding Official is also empowered to order thedemolition or rectification of such buildings if,public safety is at risk.

6/ The Building Official is empowered to orderrectification work if plans are approved by error.However the Building Official must have a strong reasonfor ordering such rectification work.

2B2 DELEGATION

1/ The Local Authority may delegate another body or anapproved person to carry out duties in connection withreview of plans for which it is incapable of undertakingfully or partially.

2/ The delegated body or approved person shall make writtenrecommendations to the Local Authority on applicationreferred to it and shall sign and appropriately stampall attached documents

3/ The Local Authority shall issue the formal documents ofapproval or rejection under the name of its owndesignated Building Official.

4/ The delegation for review of plans may be extended tocover inspection duties.

5/ In the event that a Local Authority is incapable ofcarrying out its duties under this Proclamation andfails to delegate a body or approved person to carry outsuch duties, the Regional Council shall assume theduties of the Local Authority and make such delegationsas may be considered necessary.

2B3 APPEALS

1/ A Board of Appeal shall be established for each LocalAuthority.

2/ The Board of Appeal shall have the power to hear, anddecide on, appeals regarding measures taken by theBuilding Official on buildings completed or underconstruction.

2B4 NON - COMPLIANCE

(1) The Building Official may order a buildingconstructed without approved plans to be rectified,removed or demolished, if the plans utilized toconstruct such building does not comply with theprovisions of this Proclamation and other laws .

(2) In the event that the owner of a buildingordered to be demolished by the Building Officialfails to comply with the Order, the Local Authoritymay demolish the building itself and claim theincurred expenses from the owner.

(3) The Building Official may order any work orparts thereof to be opened, removed or dismantled forinspection, if such work has been carried out withoutthe required notice being given.

(4) The Building Official may order rectificationworks on parts of a building executed withoutapproved plans. The Building Official may suspend allwork on such a building until the owner complies withthe order.

2B5 DEEMED - T0 - SATISFY REQUIREMENTS

The requirements of the regulation 2B shall be deemed tosatisfied with part 2B of the NBCE 000 - 2004

2B5- 1 GENERAL

The regulations contained in part 2B shall be deemed to besatisfied where enforcement comply with deemed to satisfyrules contained in the following provisions of this part

2B5-2 APPEALS

(1) The members of the Board shall have acquired therequired technical qualification by experience &training to pass decisions pertaining to theregulations issued by the Ministry.

(2) The board shall conduct its duties in accordance tothe directives issued by the local authority.

(3) Any person may appeal to the Board within two monthsof receiving notification of rejection of plansissued by the buildid official.

DEEMED - TO - SATISFY RULES

(4) The decision of an Appeals Board shall be final andbinding both on the applicant and the Local Authorityand may only be reversed by The Board itself. TheBuilding Official shall issue a document of Approvalof Plans immediately upon reversal by an AppealsBoard of its earlier decision to reject same plans.

(5) Any person not satisfied with the decision of theBoard may take the case to the Supreme Court. Thecourt shall determine only of the Board has erred ona question of law but shall not itself reverse theBoard's decision. The boards decision shall beconsidered confirmed if nothing to the contrary iscommunicated by the Court within 1 year of suchdecision being taken.

2C1 NOTICE

1/ An applicant who has an approved plan for constructionof a building falling under category '' B'' and ''C''shall give notice indicating the time within which theconstruction is to be carried out.

2/ The time within which the building official may decideon the notice given in accordance with sub- article (1)of this Article shall be determined by law.

3/ The Building Official may require additional notices tobe given according to the type and complexity of thebuilding. The stages of work and the time required forprior notice in such instances shall be clearly definedand shall be issued in writing to the applicant togetherwith the approved plans.

4/ A person who has received an order from the BuildingOfficial to rectify certain works carried out incontravention of approved plans shall give notice to theBuilding Official in writing on completion of suchrectification work.

2C INSPECTION

5/ Where the building official fails to carry out on siteinspection, the owner shall carry out the constructionafter having notified the building official within thetime limit provided for in law.

2C2 INSPECTORS

1/ The Local Authority shall issue special identificationbadges to the Building Official and inspection staffworking under his supervision.

2/ Inspectors carrying a Local Authority badge identifyingthem as “BUILDING INSPECTOR” shall be permitted accessto any building completed or under construction at allworking hours.

3/ Inspectors may issue stop orders, with regard torectification removal or demolition works not conformingto this Proclamation and other laws. Stop orders shallbe made on the Inspection Report form.

4/ The Building Official shall specify the period withinwhich rectification, removal or demolition of worksnot conforming to this Proclamation and other laws areto be carried out and communicate the order in writingto the owner of the building. The period specifiedshall take into account the critical nature of the orderto the progress of construction and the sequence ofworks.

5/ Where the owner of the building fails to execute theorder issued to him in accordance with sub-article (4)of this Article, the Local Authority may cause the workto be rectified, removed or demolished at the expense ofthe owner.

2C3 MATERIALS

1/ The Building Official may order defective materialsintended for use stored on site or incorporated in theworks, to be removed from the site or the works.

2/ use of Improper materials and exceptional cases of poorworkmanship may be considered as grounds for rejectionof certain items of work.

3/ The Building Official may require test certificates formaterials intended to be incorporated in the buildingworks.

2C4 OCCUPANCY PERMIT

1/ A newly constructed, modified or altered Category 'C'building shall not be put to use before it has beeninspected for compliance with this Proclamation and acertificate of occupancy has been issued.

2/ The Building Official may provide partial Occupancypermit provided safety is ensured.

3/ Without prejudice to the requirements provided for inthis Proclamation, the time limit within which anoccupancy permit may be issued shall be determined bylaw.

4/ Where the Building official fails to issue occupancypermit within the time limit provided by law, theowner of the building may use the building afterhaving notified such fact in writing.

5/ The Building Official may take legal measures on anyperson occupying a Category 'C' building with out avalid occupancy certificate.

2C5 DEEMED - TO - SATISFY REQUIREMENTSThe requirements of the regulation 2C shall be deemed tobe satisfied with part 2C of the NBCE 000 - 2004


2C5-1 GENERAL The regulation contained in part 2c shall be deemed tosatisfy where inspection comply with deemed to satisfyrules contained in the following provisions of this part.

2C5-2 NOTICE

2C52-1 (1) A person whose application for approval of plans hasbeen passed by the Building Official shall give thenotices required in writing as set in the table herebelow.

Table 2

Notice No.

Stage of Work

Notice to be given before

Commencement of building operations includingSetting our (before any profile boards are taken down).

7 days

Covering up of excavation for foundation. 7 days

Covering up of sewerage lines, manholes and septicTanks.

7 days

Completion of building operations 15 days

(2) A person who has started construction under theprovisions of 2A73-(4) shall also be requiredto give all the prescribed notices in subarticle (1) here in.

(1) in the event that the Local Authority fails toinspect the site within 10 calendar days of anotice being served, the owner may proceed withconstruction work or occupy the building afterregistering such fact in writing.

2C52-2 Any " BUILDING INSPECTOR " shall, when so requested,produce his certificate of identify, which shall containthe following information.

a) The name of the Local authorityb) The name of Building Inspector.c) The signature of the Building Inspector.d) The name & Signature of the Building

Official and e) The date of issue,

2C52-3 The certificate contemplated in sub rule (2C5-3) shall bevalid only during the period that the " BuildingInspector" so identified Occupancies the post of "Building Official" or during the period for which anypower of a "Building Official" delegated to him, as thecase may be, and it may at any time be with drawn by thelocal authority.

2C53-1 MATERIAL

Material used in the erection of a building shall be of aquality adequate for the purpose for which it is to beused.

2C53-2 The local authority may test or cause to be tested anymaterial or component used or to be used in the erectionof any building in order to determine whether suchmaterial or component complies with the requirement ofthese rules, and any officer of such local authority dulyauthorized for the purpose may, at any time afterconsultation with the person erecting such building,remove from the building site concerned so much of suchmaterial or component as is reasonably necessary to serveas a sample for the purpose of such test: provided thatthe Building Official may not exercise his powers in sucha way that work of such erection is stopped when suchmaterial or component is being so removed and tested.

2C53-3 If any material or component tested interims of subrule(2C5-7) does not comply with these rules the localauthority may serve a notice eon such person, stating therespects in which such material or component does notcomply and prohibiting such person from making further use

of such material or component for the purpose for which itwas or is to be used in the erection of such building.

2C53 -4 Except in the case where in such notice, the localauthority permits the use of such material or component inthe erection of such building for some different purposepermitted in terms of these regulations, such person shallon receipt of such notice remove such material orcomponent from building site, as the case may be.

2C53-5 If any material or component contemplated in sub rule2C53-2 is tested & has failed to comply with these rulesthe local authority may recover the cost of such test fromthe owner of the building concerned.

2C53 6 Where the owner of any building desires to use for aparticular purpose any material or component which is notpermitted or prescribed by these regulations to be usedfor that purpose, & he satisfies the local authority thatsuch material or component is at least as suitable forthat purpose as the material or component permitted orprescribed to be used by these rules, then the localauthority shall permit the use of such material orcomponent for the purpose concerned.

2C53 7 Manufacturer or suppliers of building materials shallsupply certificated of conformance to the provisions ofthe Technical Specifications of Materials and Works, ECPN-2, if requested by the purchaser or his representative.

2C53 8 In the absence of methods of tests specified by ESA,building materials, components and fixtures shall conformto the specifications issued by a recognized authority andapproved by ESA.

2C5 4 OCCUPANCY PERMIT

2C54 - 1 An application for a certificate of occupancy shall bemade on a standard form prepared by the building Official.

2C54 - 2 Subject to compliance with the requirement of this Code,the Building Official shall issue a certificate of

occupancy within 15 days of the receipt of the applicationfor occupancy permit. The certificate of occupancy shallbe posted a conspicuous place.

2C54 - 3 No building may be used for purposes other than thatspecific in the certificated unless otherwise permitted inwriting by the Building Official.

2C54 - 4 The building Official may, through authorized officers,make inspections to ascertain whether building is put tothe use specified in the certificate of occupancy.

2C54 - 5 When the building fails to meet the requirement of thiscode, occupancy permit shall be withheld until the workthat violates the provision of the code has been alteredto bring it into compliance with the requirements of thiscode.

2C54 - 6 Where an occupancy permit has been withheld due to non-compliance of the building or part of the building withthe provisions of this Code, the Building official shallinform the owner within 15 days of the inspection timethe reasons for withholding the issuance of the permit.

2C54 - 7 When the building Official fails to issue a permit tooccupy or to inform the owner of the reasons ofwithholding the permit to occupy within the days specifiedunder this Code, the owner may occupy the building.

2C54 - 8 The Building Official may issue a temporary certificate ofoccupancy for the use of a portion of the building, orstructure prior to the completion of the whole building orstructure if it finds that no hazard will result from suchoccupancy.

2C54 - 9 The building Official may suspend or revoke a certificateof occupancy whenever such certificate is issued bymistake or is in violation of any of the provisions ofthis Code.

2C54 - 10 Upon a written request from the owner, the BuildingOfficial shall issue a certificate of occupancy for anexisting building, after verification by inspection,

provided that at the time of issuing of certificate thereare no violations of these Regulations.

2D1 PLAN APPROVAL FEES

1/ The Building Official shall charge a plan approval feefor the erection extension or alteration of a building.Such fee rates shall be determined by Law .

2/ Plan approval fees shall be charged on the basisof cumulative gross floor area in case of repetitivefloors or units.

2D2 PLAN REVIEW FEES

1/ When plans, or other documents are required to besubmitted a plan review fee shall be paid. Such planreview fee shall be determined by Law.

2/ Plan review fees shall be charged on the basis of totalgross floor area of one unit of each type only in caseof repetitive units.

3/ A plan review fee shall be paid at the time ofsubmitting an application for approval of plans.

4/ When rejected plans are re-submitted for approval,additional plan review fee shall be charged. The rate ofsuch fee shall be determined by law .

2D3 INSPECTION FEES

1/ For inspection visits a fee per visit shall be paid inaccordance with the category of buildings. Such feerates shall be set by the Law.

2D FEES

2/ The rates set for category ' B ' and ' C ' buildingsshall not be more than five and ten times respectivelycompared to the rates for category 'A' buildings.

2D4 FEE REFUNDS

1/ The Building Official may authorize fee refunds whereservices applied for are not rendered up on a request inwriting by the applicant.

2/ The Building Official shall authorize, the refund inaccordance with sub article (1) here of shall be equalto 75 % of the plan review fee deposited, when anapplication for plan approval is withdrawn before anyplan review is carried out.

3/ Notwithstanding sub-article (1) herein, request forrefund shall be allowed within six months from thedate of payment.

2E FINES

2E1 GENERAL REQUIREMENTS

1/ The Local Authority shall impose fines on persons whoviolates the provisions of this Proclamation, the rateof fine shall be determined by law.

2/ The payment of fines shall not relive the offender fromcomplying with the requirements of this Proclamationand of additional legal measures to be taken by theLocal Authority.

2E2 DEEMED - TO- SATISFY REQUIREMENTS

The requirements of the regulation 2E shall be deemed to besatisfied with part 2E of the NBCE 000 - 2004


2E2 -1 GENERAL

The regulation contained in part 2E shall be deemed to besatisfied where fines comply with deemed to satisfy rulescontained in the following provisions of this part.

2E2-2 Any person who has committed an offence with regard to theseRegulations shall be fined the corresponding amounts shown in the table hereunder.

Table 3

No. Stage Work Notice to be givenbefore

1 Constructing a building without approval plans

10 times fees payable for the review of such plans.

2 Failing to give required notice under these Regulations.

2 times fees payable for inspection carried out through serving such notice.

3 Constructing a building with significant alternation to the approved plan.

5 times fees payable for review of such alternation.

4 Constructing a building using an expired approved plan.

5 times fees payable for the extension of the validity period of such approval plans.

2F1 GENERAL REQUIRMENT

Where an application is made to erect a building whichthe applicant has declared to be a temporary building, the

2F TEMPORARY BUILDINGS

Local Authority may grant provisional authorization to theapplicant to proceed with the erection of such building inaccordance with this Proclamation and other laws.

2F2 DEEMED - TO- SATISFY REQUIREMENTS

The requirements of the regulation 2F shall be deemed to besatisfied with part 2F of the NBCE 000- 2004

2F2-1 GENERAL

The regulation contained in part 2F shall be deemed tosatisfy where temporary buildings designed & constructed inaccordance with deemed to satisfy rules contained thefollowing provisions of this part.

2F2-2 Before granting temporary buildings the local authority may require the submission of: -

a) a statement of the period for which authorizationis required.

b) A site plan

a) Lay out drawings in sufficient detail to enable thelocal authority to determine the general size, form,materials of construction and use of the proposedbuilding and:

b) Any structural detail required by the local authorityto determine the structural safety of the proposedbuilding.

2F2-3 The Local Authority shall grant the authorizationcontemplated in sub regulation 2F1 for a limited period,

2E2 DEEMED - TO- SATISFY RULES

to be determined with regard to the period specified bythe applicant.

2F2-4 For minor temporary buildings it would not to benecessary to submit fall plans.

2G1 GENERAL REQUIREMENT

1) The Building Official shall grant permission to any person toproceed with demolishing, repair and minor alteration orextension to a building provided that it complies with theprovisions of this Proclamation.

2) In the case of extensive repair, the Building Official mayrequire plans, sections, elevations, specification and anyother particulars necessary to verify compliance with thisProclamation.

3) the Building Official may grant permission to demolish anybuilding in dangerous condition

4) No person shall, at any time, during the course of or afterdemolition of a building leave it in a condition dangerous tothe public or any adjoining property.

5) Notwithstanding the provision of sub-article (1) of thisarticles a permission shall also be required for Buildings ofHistorical value from the appropriate government organ.

2G2 DEEMED TO SATISFY REQUIREMENTS

Requirements of regulation 2G shall be deemed to besatisfied with part 2G of the NBCE 000- 2004

2G DEMOLISHING AND REPAIR


2G2 -1 GENERAL

The requirements of regulation 2G shall be deemed to besatisfied where any building Demolished or repair inaccordance with deemed to satisfy rules contained thefollowing provision of this part.

2G2 2 DEMOLITION & RAPAIR OF ANY BUILDING

(1) No owner of any site shall not demolish or repair orcause of permit to be demolished or repaired with outthe prior written permission of the local Authority.

(2) The local Authority may in granting such permission ,impose any condition or requirement for the safetyhealth, and convenience of the public, and for thesafety of any other building or installation which inits opinion may be affected by such demolition orrepair.

(3) Where a condition contemplated in sub regulation 2G1-(4) arises the Local Authority may serve a notice onsuch person requiring him to make the site safe.

(4) The Local authority may relax demolishing & repairworks of any building :-

a) The replacement of a roof or part there ofwhich the same or similar material;

b) The conversion of a door in to a windowinto a door with of increasing the width of theopening;

c) The making of an opening in a wall whichdoes not affect the structural safety of thebuilding concerned;

d) The partitioning or the enlarging of anyroom by the erection or demolition of anyinternal wall if such erection or demolition doesnot affect the structural safety of the buildingconcerned;

2G2-3 SAFE GUARDING OF BASEMENTS

Where any building is demolished to the level of theground and such building contained a basement, the ownerof such building shall provide or cause to be providedsafe lateral support to the sides of such basement.

2G2-4 PROHIBITION OF DANGEROUS METHODS

The local authority may prohibit the use of any method tobe applied in the demolition of any building where in itsopenion such method will create or cause to be created anydanger to any person or other building or property, andwhere it so prohibits it shall, on the request of theowner of such building , quit its reasons, in writing, forsuch prohibition.

2H1 GENERAL REQUIRMENT(1) A person intending to erect a building shall employ a

registered architect for the purpose of ArchitecturalDesign and employ a registered Engineer for thepurpose of Structural, Electrical , Mechanical andSanitary Design and retain their services for thepurpose of supervising the erection thereof.

(2) Upon completion of building works, a certificate ofcompletion signed by a registered Architect ofEngineer shall be submitted to the Building Official.

(3) Not withstanding the provisions of sub-certificate(1) and (2) here above a person intending to erect abuilding of category A may not be required to employthe services of registered professionals.

2H EMPLOYMENT OF REGISTERED PROFESSIONALS

2H2 DEEMED - TO- SATISFY REQUIREMENTSThe requirements of the regulation 2H shall be deemed tobe satisfied with part 2H of the NBCE 000 - 2004

2H2 - 1 GENERAL The regulation contained in part 2H shall be deemed tosatisfy where appointment of persons responsible fordesign in accordance with deemed to satisfy rulescontained the following provisions of this part.

2H2- 2 Here in terms of these regulations a rationaldesign for

(a) architectural design of the building.

(b) The structural system and design of the building;

(c) The drainage installation & storm water disposalsystem;

(d) The Electrical installation

(e) Any artificial ventilation & fire protectionsystem

Is submitted to the Local authority according tocategory of buildings, the owner of any building shall,except were not so required by the local authority,appoint and retain any person who is an architect or anengineers or other approved competent person to undertake responsibility for each such design, and also forinspection, during construction.

2H2-3 Where it is not possible for such person to fulfillhis duties a contemplated in sub rule (2H2-2), theowner of such building shall appoint some other suchperson to fulfill such duties.


2H2-4 Such owner shall inform the local authority of theappointment of any person contemplated in sub rule(2H2-2) or (2H2-3) and shall finish to such localauthority the name and address of such person, a fulllist of his academic and professional qualifications,professional license which given by the ministry,evidence of relevant experience & proof of hisacceptance of such appointment.

2H2-5 Where so required by the local authority theinformation contemplated in sub rule ( 2H2-4) shall beon approved form.

2I1 GENERAL REQUIRMENT(1) A person intending to erect a building shall comply to the

requirements of a registered contractors or registeredsub- contractors.

(2) Notwithstanding the provisions of sub-article (1) of thisArticle a person intending to erect a building of category"A" may not be required to employ the services ofregistered contractors or sub contractors.

2I2 DEEMED - TO - SATISFY REQUIREMENTSThe requirements of the regulation 2I shall be deemed tosatisfied with part 2I of the NBCE 000 - 2004.

2I2-1 GENERALThe regulation contained in part 2I shall be deemed to satisfywhere construction of a building in accordance with deemed tosatisfy rules contained in the following provisions of thispart.

2I EMPLOYMENT OF REGISTERED CONTRACTORS


2I2-2 Where in terms of these rules construction of any buildingthe owner of any building shall, except were not so requiredby the local authority, employ the services of registeredcontractors and sub contractors.

2I2-3 Where it is not possible for such contractor to fulfillhis duties as contemplated in sub rule (2I2-2) , the owner ofsuch building shall appoint some other to fulfill such duties.

2I2-4 Where so required by the local authority contemplated insub rule (2I2-3) shall be approved by the ministry.

2I2-5 All workmanship in the erection of any building shall be inaccordance with sound building practice.

2I2-6 Precautions shall be taken during all stages ofconstruction of any building to ensure that the structuralsystem is not damaged or distorted during the course oferection of such building.

3. LAND USE ,SIGNS AND SPACE STANDARD

3A LAND USE

3A1 GENERAL

The Federal Structure Plan, indicating the main elementsof the country's infrastructure; the Regional Plandelineating the Regional infrastructure; and the legallyapproved urban plans prepared by each city have precedenceon aspects of land use Provisions stipulated in thisProclamation.

3A2. DEEMED TO SATISFY REQUIRMENTS

In the absence of a Master Plan and / or Detail Plan,buildings shall be deemed to be satisfied with therequirements of part 3A of NBCE 000- 2004.


3A2-1 GENERAL

The requirements of regulation 3 shall be deemed to be satisfied where any building is designed, constructed and equipped in accordance with deemed-to satisfy rules contained in the following provisions of this Part.

1 Land use shall conform to the minimum Floor Area Ratio(FAR) and the maximum Building Area Ratio (BAR) as set outin the table hereunder.

Table 1

Class ofoccupancy

Grade of Land

Occupancy 1 2 3 4 5

FAR BAR FAR BAR FAR BAR FAR BAR FAR BAR

A1, A2, A4, A5 ASSEMBLY 80 60 70 60 60 50 50 50 40 40

F1, F2, F3 BUSINESS 500 80 400 60 300 50 200 40 100 30

A3 EDUCATIONAL 60 50 50 40 40 30 30 20 30 10

C1, C2, D1, D2,D3, D4

INDUSTRIAL 300 60 200 60 150 50 100 40 50 30

E1,E2, E3 INSTITUTIONAL 100 50 80 50 60 30 40 20 20 10

G1, B1, B2, B3 COMMERCIAL 250 80 200 60 150 50 100 40 50 30

H, H2, H3, H4 RESIDENTIAL 200 50 100 40 80 40 50 30 30 30

J1, J2, J3, J4 STORAGE 400 70 300 60 200 50 100 40 20 30

2 In the event that there are no official Zoning regulations,each Municipal Building official shall designate the grade ofland under its jurisdiction.

3 Every plot on which a building is proposed to be built shallbe served by a public road with a minimum width of 4.0m.

4 Buildings are not permitted to encroach on the right-of-way ofpublic roads.

5 The supply of services to a plot shall be from public roadsdirectly adjoining the plot.

6 No building or structure shall be erected on public propertywithout the consent of the building official. Such consent shallbe given in writing.

7 The use of public property such as roads, side walks and squaresfor the storage of construction materials, erection of temporaryfacilities and any other uses is prohibited except whenspecifically permitted in writing by the building official.

8 Any person intending to construct a building shall take into account existing buildings, either completed or under construction, in adjacent plots and take all precautions not to cause damage or hamper the safety and health of the occupants of adjoining property.

9 Sub-structure work within 1.0m of buildings or fenceson adjoining property is prohibited, except when the owner of such an adjoining property gives consent in writing, addressed to the building official before review of plans is finalized.

10 Buildings shall not be constructed on established drainage lines and public sewers. A minimum right-of-way of 4m shall be observed in the case of public sewers.

11 New development and property shall not hinder the functioning of existing service lines of adjoining property.

12 Buildings shall be so sited on a plot as to ensure hygienic and sanitary conditions and to avoid, as faras possible, any nuisance or annoyance to the owners or occupiers of neighboring plots.

13 The Local Authority may prescribe a building line forany street or part of a street.

14 Any person erecting a building shall, before the erection thereof or at the time of the first inspection, prove the boundaries of the plot.

15 Habitable rooms shall abut on an interior or exterior openspace, or open verandah open to such interior or exterioropen space.

16 No projections of any sort whatsoever shall project over the road or over any portion outside the boundaries of the site. Projection arising out of thevertical part of the rainwater spouts projecting at the road level or the water pipe may be permitted in accordance with the drainage plan.

3B SIGNS AND OUT DOOR DISPLAY STRUCTURES

3B1 GENERAL REQUIRMENTS

1/ Signs shall be designed and constructed on every road andshould satisfy acceptable aesthetic quality and should havepermission of the Local Authority.

2/ No sign shall be illuminated by other than electrical meansunless approved by the Local Authority.

3/ Signs shall be erected, constructed and maintained so as notto obstruct any fire escape or any access.

4/ Whenever signs are removed as a result of notice or order orotherwise, any damage or defacement to the building or site,shall be made good to the satisfaction of the LocalAuthority.

3B2. DEEMED-TO-SATISFY REQUIRMENT

The requirements of the regulation 12B shall be deemed to satisfiedwith Part 12B of the NBCE-000- 2004.

DEEM- TO- SATISFY RULES

3B2.1. GENREAL

The regulation contained in Part 12B shall be deemed to satisfy wheresigns and out door display structures comply with deemed to satisfyrules contained in the following provisions of this part.

3B2-2. UNSAFE AND UNLAWFUL SIGNS

(1) Unsafe, unlawfully installed, erected or maintainedsigns shall be removed or made to conform to theprovisions of this regulation. If within seven daysafter notice the order is not complied with, the LocalAuthority may remove such sign at the expense of theowner.

(2) Not withstanding the above provision, it is theresponsibility of the owner to ensure the safety ofadvertising signs.

3B2-3. PROHIBITION OF ADVERTISING SIGNS IN CERTAINSITES

(1) Wherever in the opinion of the Local Authority anyadvertising sign may affect a particular area such asparks or land for public use, etc. or with regard tohistoric, architectural, cultural or similar interest,the municipality may define such area in a detail plan asan area of special control.

3B2-4. MAINTENANCE AND INSPECTION

(1) All signs shall be kept in good repair bothstructurally and aesthetically.

(2) It shall be the duty and responsibility of the owner ofevery sign to maintain the immediate premises occupiedby the sign in a clean, sanitary and healthy condition.

(3) Signs for which a permit has been issued shall beinspected by the Authority at least once every year.

3B2-5. TRAFFIC CONTROL INTERFERENCE

(1) No sign shall be erected or maintained whichinterferes with or is likely to interfere with anysign or signal for the control of traffic.

(2) No sign shall be place particularly in bends or curvesso as to obstruct the view of traffic at intersectingstreets.

(3) Signs shall be so placed as not to obstruct the use offire hydrants or other firefighting appliances.

(3) Illuminated sign in red, amber, or green colors shallnot be erected or maintained within a horizontal distanceof 6 m of any illuminated traffic sign.

3B2 - 6 GROUND SIGNS

1/ Ground signs exceeding 6.0m in height shall beconstructed of non - combustible material

2/ No ground sign shall be erected to a height of 9.omabove the ground.

3B2 - 7 ROOF SIGNS

1/ No roof sign shall exceed the values given the table hereafter.

TABLE 1

Hight of a building Height of sign(maximum)

a) Less than & Storey of

18.0m

2.0m

b) 5-8 storey or 18.0 -

36.0m

3.0m

c) 8 storey & more or 36.0m

on & above

5.0m

2/ For roof signs near airports, the civil Aviation Authorityshall be consulted.

3B2 - 8 WALL SIGNS

The total area of any wall sign shall not exceed 20.0m2

for every 15.0m of a building frontage to the street towhich such sign faces.

3B2 - 9 TEMPORAR ADVERTISING SIGNS , FAIR SIGNS ANDDECORATIONS DURING PUBLIC EVENT

1/ all temporary signs shall be subject toapproval of the Authority an d shall be erected so asnot to obstruct any opening and to incur fire risk.

2/ The authority is empowered to order the immediateremoval of any temporary sign where, in its opinion,such action is necessary in the interest of publicamenity and safety.

3/ Temporary signs shall be removed as soonas torn or damaged and in any case within 60 daysafter erection.

4/ All temporary banners suspended from a buildingor hung on poles which extend across streets onother spaces shall be subject to specialapproval of the Authority.

3C SPACE STANDARDS

3C1 ROOMS AND BUILDINGS(1) Any room or space shall have dimensions that will ensure that

such room or space is fit for the purpose for which it isintended.

(2) The floor area of any dwelling unit shall not be less thanthat necessary to provide one habitable room and a separateroom containing toilet facilities.

3C2. DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 4A shall be deemed to be satisfied with part 4A of the NBCE 000- 2004.


3C2-1 GENERAL


3C2-2 The plan dimensions of any room or space shall be the horizontal dimension between un plastered wall surfaces.

3C2-3 Any floor area shall be based upon the plan dimensions but shall not include any area occupied by any built-in cabinetor cupboard or any dividing wall or partition erected.

3C2-4 Habitable rooms in dwelling units shall have a minimum ceiling height of 2250.0mm. Kitchens, halls, bathrooms and toilet compartments may have a ceiling height of not less than 2100.0mm measured to the lowest projection from the ceiling.

3C2-5 Every dwelling unit shall have at least one room which shall have not less than 12.0m2 of floor area. Other habitable rooms except kitchens shall have an area of not less than 6.0m2 and a width of not less than 2000.0mm.

3C2-6 The floor area of any room contemplated in column 2 of Table 1 shall be not less than that prescribed for such room in column 3 of Table 1.

TABLE 1 - ROOM AREA1 2 3

Type ofOccupancy

Room Minimum plan area

All occupancies

Any habitable room other thanA kitchen, scullery or laundry.

6m2 with no linear dimension of lessthan 2m.

B, D or J Change rooms and dining rooms Population 1- 15: 0,8 m2 per person but not less Than 6 m2.

Population 16 - 100: 0,6m2 per personbut not less Than 12m2.

Population more than 100: 0,5 m2 per person but not Less than 60 m2.

3C2-6 Two or more spaces shall be deemed to be one room if anydividing wall or partition, including any door, erectedbetween such spaces occupies less than 60 % of the area ofthe separating plane.

3C2-7 The height of any room or space contemplated in column 1

of Table 2 shall not be less than that prescribed for suchroom or space in column 2 of Table 2 and shall be the vertical dimension from the top of the finished floor to -

(a) the underside of the ceiling;(b) the underside of the roof covering where there is no

ceiling; or(c) the underside of any structural members where such

structural members project below such a ceiling or aroof covering and the plan area of such projections exceeds 30 % of the plan area of the room.

3C2-8 Notwithstanding the requirements contained in Table 2,where any structural member projects below the level ofthe ceiling or, where there is no ceiling, below the levelof the roof covering, the height to such projection shallnot be less than 2,1 m .

1 2Room or space Minimum height

Bedroom 2.4m over a floor area of at least 6m2 with clear height to fat least 1,8 m at any point more than 0,75m from the edge of the floor space.

Any other habitable roomin a dwelling house or dwelling unit

2.4m over a minimum of 70% of the floor areanot less than 2,1m over the remaining floor area

All habitable rooms other than Those listed above

2.4 m

Passage or entrance hall 2.1 mBathroom, shower-room, laundryOr room containing a WC pan

2.1m over any area where a person would normally be in a standing position.

Open mezzanine floor which has anArea not exceeding 25% of the area of the floorimmediately below it

2.1 m above and below the mezzanine floor

4 STRUCUTURAL DESIGN

4A STRUCTURAL DESIGN

4A1 DESIGN REQUIRMENTS(1) Any building and any structural element or component thereof

shall be designed to provide strength, stability,serviceability and durability in accordance with acceptedprinciples of structural design, such buildings should notexhibit signs of structural failure during their life spanunder normal loading. .

(2) Any building should be designed and constructed such that Itwill not impair the integrity of any other building orproperty.

(3) Any structure building shall be so designed that in the eventof accidental over-loading such as wind or an earthquake, thestructural system will not suffer disastrous or progressivecollapse which is disproportionate to the original cause.

4A2 DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 6A shall be deemed to be satisfied with part 6A of the NBCE 000- 2004.

DEEMED-TO-SATISFY RULES

4A2-1 GENERAL

The regulation contained in Part 6 of the National BuildingCode of Ethiopia shall be deemed to be satisfied where the

structural design of any building complies with deemed-to-satisfy rules contained in the following provisions of thisPart.

4A2-2 STRUCTURAL DESIGN

The design of the structural system of any building shall becarried out in accordance with EBCS and in accordance withone or more of the following building code standardsrelating to the materials used in such building or in anyelement or component thereof:

(a) EBCS 1 (Basics of Design and Actions on theStructure)

(b) EBCS 2 (Structural Use of Concrete)(c) EBCS3 (Design of Steel Structures)(d) EBCS4 (Design of Composite Steel and Concrete

Structures)(e) EBCS5 (Utilization of Timber)(f) EBCS6 (Design of Masonry Structures)(g) EBCS7 (Foundations)(h) EBCS8 (Design of Structures for Earthquakeresistance)

4A3-3 STRUCTURAL MATERIALS

4A3-4 The material used in the construction of any structuralelement or component thereof shall be that specified orcontemplated in -

(a) the relevant EBCS, where such code has been used asa basis for the design;

Provided that where the materials specified in suchdocument are not available, other approved materials maybe used if they have been shown to be suitable in relationto such document.

4A3-5 Where any structural material other than those covered byany code of practice in rule 6A2 is used in any building,the design of such building and the structural elements andcomponents thereof shall be in accordance with a safemethod applicable to the structural use of such othermaterial.

4A3-6 RESPONSIBILITY FOR DESIGN AND CONSTRUCTION

4A3-7 Any rational design of a structural system shall be done orchecked by a professional engineer or other approvedcompetent person, and such person shall certify that suchdesign complies with the requirements contained inregulation

4A3-8 Such person shall, by means of inspections carried out atsuch intervals as may be necessary in accordance withaccepted professional practice, satisfy himself that thestructure has been erected in accordance with the approveddesign and shall furnish to the local authority acertificate to this effect.

The Contractor shall be responsible for the workmanship ofthe construction of a building or an element of abuilding.

5. EXCAVATIONS , FOUNDATIONS & SITEOPERATIONS

5A EXCAVATIONS

5A1. GENERAL STABILITY REQUIRMENT

EXCAVATIONS

1/ Where any excavation related to a building is carried outor is to be carried out on any site and such excavationmay impair the safety or stability of any property orservice, the owner of such site shall take adequate

4B WORKMANSHIP

precautionary measures to ensure that the safety andstability of such property or service is maintained.

2/ While any such excavation remains open, and during theplacing of any foundation within it, such excavation shallbe maintained in a safe condition by the owner or personcarrying such excavation.

3/ Where the safety or stability of any property or serviceis likely to be impaired by such excavation or where thedepth, at any point, or such excavation is likely to bemore than 3m the owner of the site shall:

(a) Obtain the prior written authorization of theLocal Authority for such excavations, and

(b) Take the precautionary measures specified by theLocal Authority in such authorization.

4/ The owner of any site shall, at least seven days prior tothe commencement of any excavation contemplated in subarticle (1) of this Article, notify the Local Authority inwriting of his intention to excavate.

5A2. DEEMED TO SATISFY REQUIRMENTSThe requirements of the regulation 5A shall be deemed to be satisfied with part 5A of the NBCE 000- 2004.

DEEMED- TO- SATISFY RULES

5A2-1 GENERAL

The requirement of regulation part 5A2- shall bedeemed to be satisfied where the excavation is donefor the purpose of building design.

(a) Measures to ensure the safety and stability of anyproperty or service are the subject of an acceptablerational design carried out by or under the

supervision of a professional engineer or otherapproved competent person; or

(b) Such excavation complies with EBCS 7requirements.

5A2 - 2 EXCAVATIONS FOR FOUNDATIONS

1/ The foundation of any building shall be designed so thatit can safely transmit all the loads from such building tothe ground, without inducing excessive settlement orground failure.

2/ The load from any newly constructed foundation should notimpose additional stress on existing foundations, buriedutility lines or any other existing structures.

3/ The loads from newly constructed foundations should notintroduce instability to already stable grounds, naturalslopes .

5B FOUNDATIONS

5B1 GENRAL EQUIRMENT

(1) The foundation of any building shall be designed so that itcan safely transmit all the loads from such building to theground, without inducing excessive settlement or groundfailure.

(2) The load from any newly constructed foundation should notimpose additional stress on existing foundations, buriedutility lines or any other existing structures.

(3) The loads from newly constructed foundations should notintroduce instability to already stable grounds, naturalslopes etc…

5B2 DEEMED - TO - SATISFY REQUIRMENTS

The requirements of the regulation 5B shall be deemed to be satisfied with part 5B of the NBCE 000- 2004.


5B2-1 GENERAL

The regulation contained in Part 5B of theNational Building Code of Ethiopia shall be deemed to besatisfied where -

(a) any foundation is the subject of a rational design inaccordance with the requirements contained in Part5B; or

(b) the construction of any foundation complies withdeemed-to-satisfy rules contained in the followingprovisions of this Part.

5B2-2 EMPIRICAL RULES FOR FOUNDATIONS

Any foundation constructed in accordance with sub rules5B2-2 to 5B2-8 inclusive shall not be used to support anywall forming part of the structural system of any buildingexcept where -

(a) Such wall is placed centrally on such foundation;(b) Such wall is the wall of any building contemplated in

rule 5D of this code; and(c) The soil supporting such foundation is not a heaving

soil or shrinkable clay or a soil with a collapsiblefabric.

5B2-2 Any such foundation shall be constructed in concretehaving a compressive strength of not less than 20 MPa at28 days.

5B2-3 Any continuous foundation shall have a thickness of notless than 200 mm: Provided that where the foundation islaid on solid rock such thickness shall not apply.

5B2-4 The width of any continuous strip foundation shall benot less than -

(a) 600 mm in the case of a foundation to a load-bearingor free standing masonry wall or framed structure.

(b) 400 mm in the case of a foundation to a non-load-bearing internal masonry wall or is a single storytemporary construction.

5B2-5 (a) Where any foundation is laid at more thanone level the higher portion of the foundation shallextend a distance equal to or greater than thedifference in depth of the two adjacent foundations,but not less than or at least equal to the thicknessof the foundation.

(b)Any void between the top of the lower portion of suchfoundation and the underside of the higher portionshall be completely filled with concrete of the samestrength as that required for such foundation.

5B2-6 Where any concrete floor slab is thickened toform a foundation

(a) The thickness, including that of such floorslab, shall be not less than that required for aother types of foundation; and

(b) The width of the thickened portion below suchfloor slab shall be not less than that required for acontinuous-strip foundation:

Provided that such thickening shall not be requiredunder non-load-bearing walls.

5B2-7 (a) The length and width of the foundationshould be determined from bearing capacityrequirements. The minimum diameter of the pier shouldbe 250 mm and the minimum depth should be in stablezone of soils, but always below the topsoil.

5C SITE OPERATIONS

5C1. GENERAL REQUIRMENTS1/ In cases where danger or serious inconvenience to the public

may ensue from the demolition or erection of a building onany site, the Local Authority may require that the owner ofsuch site, before such work is commenced shall erect a fence,hoarding or barricade to prevent the public from enteringsuch site and to protect them from any possible dangerousactivities on such site, including from dust.

2/ Where any work connected with the demolition or erection ofany building may, in the opinion of the Local Authority,cause or have any detrimental effect on the strength,standard, safety, quality or position of any propertybelonging to or vested in such Local Authority, the LocalAuthority may require the owner of such building to pay tothe Local Authority such deposit or give such security, as itmay require to cover the costs of the repair of any damagewhich may be caused by such work.

3/ Where in the opinion of the Local Authority, excessiverubble, rubbish, other debris or combustible waste materialis allowed to accumulate on a site before or during buildingoperations, it may by written notice, order the owner of suchsite to have such rubble, rubbish, other debris orcombustible waste material removed within the periodspecified in such notice.

4/ Any owner or person carrying out or performing work inconnection with the erection or the demolition of anybuilding, may erect on the site of such work such temporarybuilder’s sheds as may be necessary.

5/ No owner or person shall commence or continue the erection ordemolition of any building unless approved sanitaryfacilities for all personnel employed on or in connectionwith such work have been provided or are available on thesite or, with the permission of the Local Authority, at someother place: Provided that where such facilities have notbeen so provided the Local Authority may order the cessationof such work until the required facilities have been

provided, and should such order not be complied with, theLocal Authority may install such facilities and recover thecosts of such installation from the owner of the site.

6/ The Local Authority may device mechanism to administer thesafety requirement during construction.

5C2. DEEM-TO-SATISFY REQUIREMENTS

The requirement of the regulation 12A shall be deemed tosatisfied with Part 12A of the NBCE – 000 – 2004.

DEEM- TO - SATISFY RULES

5C2-1. GENREAL

The regulation contained in Part 12A shall be deemed to satisfy wheresite operations comply with deemed to satisfy rules contained in thefollowing provisions of this part.

5C2-2. PROTECTION OF THE PUBLIC

(1) Any person undertaking any work of erection ordemolition on any site shall confine all operations inconnection with such work within the boundaries of suchsite and shall not encroach upon or over any street orpublic place abutting such site, except with the priorwritten approval of the local authority, and subject tothe conditions contained in such approval with regard tothe safety and convenience of persons using such streetor public place.

(2) The local authority may, before or during theerection or demolition of any building, impose anyreasonable conditions in addition to the conditions andrequirements contemplated in this regulation, for thepurpose of safeguarding the interest of the generalpublic, and the owner shall observe every condition soimposed.

5C2-3. DAMAGE TO LOCAL AUTHORITY’S PROPERTY

(1) In the event of damage to the local authority’s property,the local authority may appropriate the amount of depositor security contemplated in sub rule (12A2-2) towards thecosts of repairing such damage; provided that if theamount of the deposit or security exceeds such costs, thebalances shall be refunded to the owner provided furtherthat if such costs exceed the amount of the deposit orsecurity, such owner shall be liable to the localauthority for the deficit.

5C2-4. PREPARATION OF SITE

(1) Before any foundation is laid the area to be coveredby any building shall be properly cleared of vegetable ofvegetable matter, free stumps, timber and other cellulosematerial, debris or refuse and any material contaminatedwith faucal matter.

(2) Where any site upon which any building is to beerected is waterlogged or saturated, or where any buildingis to be so situated that water will drain naturallytowards it, drainage shall be provided to direct suchwater away from such site or building to a storm waterdrain or to dispose of it in some other safe approvedmanner.

5C2-5. CONTROL OF DUST AND NOISE

(1) Any owner or person on which excavation work is inprogress or on which any building is being erected ordemolished shall take precautions in the working area andon surrounding roads and foot ways to limit a reasonablelevel of noise disturbance and the amount of dust arisingfrom the work or surroundings.

5C2-6. BUILDER’S SHEDS

(1) Any owner or person carrying our or performing workin connection with the erection or the demolition of anybuilding, may erect on the site of such work temporarybuilders’ sheds as may be necessary.

(2) The construction and location of such sheds shall be tothe satisfaction of the local authority and such shedsshall be maintained in good order.

(3) On the completion or cessation of the work referred toin sub rule (1) or where such sheds are no longernecessary for the purpose for which they were erected,they shall be removed from the site by the owner.

5C2-7. SANITARY FACILITIES

(1) Sanitary facilities shall be so sited as not to beoffensive and shall at all times be maintained in a cleanand hygienic condition, and shall, unless they are of apermanent nature, be removed by such owner or personimmediately after such building work has been completed.

6 BUILDING ELEMENTS

6A FLOORS

6A1 GENERAL

1/ Any floor of any building shall be strong enough to safelysupport its own weight and any loads to which it is likelyto be subjected

2/ It should have a fire resistance appropriate to its useand compartment floors shall form a complete barrier tofire between the components it separates.

3/ It should have sound insulation appropriate to its use.

4/ The floor of any laundry, kitchen, shower room, bathroomor room containing a WC pan or urinal shall be waterresistant.

5/ Floors next to the ground shall be so constructed as toprevent the passage of moisture from the ground to the uppersurface of the floor.

6A2 DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 5C shall be deemed to be satisfied with part 5C of the NBCE 000- 2004.


6A2-1 GENERALThe requirements of regulation 5C shall be deemed to be satisfied where any building is designed, constructed and equipped in accordance with deemed-to satisfy rules contained in the following provisions of this Part.

6A2-2 Floors built of:

A. Wood shall be in accordance with the requirements of EBCS-5.

B. Reinforced concrete shall be in accordance with the requirements of EBCS 2.

C. Steel shall be in accordance with the requirements of EBCS-3

6A2- 3 STRUCTURAL STABILITY All Structural floors shall be of sound and durable material and of sufficient strength to support the loads bearing on them.

6A2-4 FIRE RESISTANCE

compartment floors shall maintain the required fire resistance of the building elements which shall have a minimum period of fire resistance.

6A2-5 SUND INSULATION

AIR - BORNE SOUND

A floor which separates a dwelling from another dwelling orfrom another of the same dwelling which is not usedexclusively as part of the dwelling, shall sufficientlyreduce the transmission of air borne sound.

IMPACT SOUND

A floor above a dwelling which separates it from anotherdwelling, or from another part of the same building whichis not used exclusively as part of the dwelling, shallsufficiently reduce the transmission of impact sound.

6B ROOFS

6B1 GENERAL REQUIREMENT1/ The roof structure shall safely sustain the load of its own

weight and any other imposed load. A roof resting on a wallshall have its concentrated load distributed over the wallto avoid cracks or crushing of the wall.

2/ The fire resistance of any roof and ceiling assemblycomplete with light fittings or any other component whichpenetrates the ceiling, shall be appropriate to its use andwhere necessary such roof or roof and ceiling assembly shallbe non-combustible.

3/ The roof of any building shall be waterproof and beconstructed in such a way that it remains tight and does nottransmit moisture due to rain to any part of the building.

6B2. DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 5E shall be deemed to be satisfied with part 5E of the NBCE 000- 2004.


6B2- 1The design of roof shall be in accordance with the requirements of EBCS-2,EBCS-3, EBCS-5. and EBCS-8

6B2- 2FIRE RESISTANCE

Roofs shall be so constructed or covered or isolated fromother buildings as to provide adequate protection against thespread of fire into the building or adjoining buildings.

6B2- 3Weather Resistance

The roof covering shall be laid with adequate slope and/oroverlap to drain off rainwater either freely over roof edgesor to gutters and/or down pipes.

6B2- 4Junctions of roofs to walls or other vertical structures shallbe properly sealed with appropriate flashings to avoid waterleakage.

6B2- 5gutters and/or down pipes shall be of adequate size andappropriate material and construction to avoid leakage intothe building.

Pitched roofs Pitched or flat roofs Flat roofs

1. Slates, eithernatural orasbestos cement,or

1. corrugated sheets ofgalvanized steel,aluminum, composite steeland asbestos, asbestoscement, PVC-coated steel,or

1. Two layers of bitumenor felt covered with a12mm layer of naturalstone chippings, or

2. Slabs of naturalstone, or

2. Sheets of aluminum,copper or zinc orvitreous enameled steel.

2. Bitumen bedded tilesor a non-combustiblematerials, etc.

3. Tiles of burntclay orconcrete.

3. Sand and cement screed

12.0mm thick.

6B2- 6Rain water from roofs shall not drain-off to adjoiningbuildings or property or to external parts of the buildingitself, walkways, passageways, driveways or parking areas, oradversely affect these parts by the transmission of moisture.

6C GLAZING

6C1 TYPE AND FIXING OF GLAZING(1) Any material used in the glazing of any building shall be of

a secure and durable type and shall be fixed in a manner andposition that will ensure

(a) Safely sustain any wind loads to which it is likelyto be subjected;

(b) Not allow penetration of water to the interior of thebuilding; and

(c) Be apparent, in the case of clear glazing, to anyperson approaching such glazing.

(2) Glass, plastics and organic coated glass shall be selected inorder to provide, in the case of human impact, a degree ofsafety appropriate in relation to:

(a) The position of the glazed area; and

(b) The number and likely behavior pattern of personsexpected to be in close proximity to such glazed area.

(c) Structural Stability

6C2. DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 5G shall be deemed to be satisfied with part 5G of the NBCE 000- 2004.


6C2-1 In any vertical glazing installation, any pane of glass and the fixing of such pane shall comply with the following requirements; Unless the use of biggest areas isjustified by using specially produced glass for such purposes.

TABLE - 2

1 2

Nominal glass Maximum size ofthickness, mm pane, ml

3 0,75

4 1,5

5 2,1

6 3,2

6C2-2 Glazed windows extending to less than 1.0m above the floor level shall:

(a) if the said floor has a level difference of morethan 1.0m from the adjacent ground level, thewindow shall be protected by a barrier or railingsplaced at least 1.0m above the floor level, or

(b) if the said floor is located more than 6.0m abovethe surrounding ground level, the window shall beprotected by railings located at least 1.0m abovethe floor or the window shall be non-open able anddesigned to withstand lateral loads allowable forbalcony guards.

6C2-3 Any pane of glass installed in any door shall, where notmade of safety glass, be not more than 1 M2 in area andshall have a nominal thickness of not less than 6 mm

6C2-4 Where any bath enclosure or shower cubicle is constructedof glass such glass shall be safety glass.

6C2-5 Any glass used in any shop-front and having an area ofmore than 1 M2 shall be safety glass.

6C2-6 Where glass is used in any wall or balustrade to astairway or ramp and is less than 1,8 m above the pitchline of such stairway or the surface of such ramp or thesurface of any landing forming part of such stairway orramp, such glass shall be safety glass.

6D WALLS

6D1 STRUCTURAL STABILITYAny wall, including any parapet, pier, column, or chimney, shallbe capable of safely sustaining any loads to which it is likelyto be subjected and in the case of any structural wall such wallshall be of sound and durable material and sufficient thicknessto support the loads bearing on or against it without impairingthe stability of or causing damage to the whole or any part ofthe building.

6D2 WATER PENETRATIONAny wall, including any parapet, pier column, or chimney, shallbe so constructed as not to transmit moisture due to rain or

otherwise to any part of the building which could be adverselyaffected by such moisture and to the inside of the building.

6D3 THERMAL INSULATIONAny wall of a building enclosing specific function shall bebuilt to resist the transmission of heat or cold inappropriateto its use.

6D4 FIRE RESISTANCEAny wall shall have combustibility and fire resistancecharacteristics appropriate to the location and use of suchwall. A wall common to two or more buildings shall be designedand constructed so that it resists the spread of fire betweenthose buildings.

6D5 SOUND INSULATIONAny wall enclosing space that require sound insulation shall beconstructed so as to provide reasonable resistance to transmitsound.

6D6 DEEMED - TO - SATISFY REQUIREMENTS The requirements of the regulation 5D shall be deemed to be satisfied with part 5D of the NBCE 000- 2004.


6D6-1 STRUCTURAL STABILITY

1/The requirement of 5D above shall be deemed to besatisfied if load-bearing walls built of

a) masonry are in accordance with the requirements ofNBCE Part 5, EBCS-6 and EBCS-8,

b) Wood are in accordance with the requirements of NBCEPart 5,EBCS-5,and EBCS-8,

c) Steel are in accordance with the requirements offNBCE Part 5, EBCS-3,EBCS-8,

d) Composite steel and concrete are in accordance withthe requirements of NBCE Part 5,CBCS-4 and EBCS-8

6D6-2 WATER PENETRATION

1/ The requirements of protection of walls against moistureshall be deemed to be satisfied if the wall, pier, buttress,column or chimney.

a) has a damp-proof course (d.p.c) at a height of not lessthan 150.0mm above the adjoining finished ground level.

b) Has such additional moisture barriers as may be necessaryto meet the requirements above,

c) Extending below the level of the d.p.c. is constructed ofmaterials not likely to be adversely affected by moisturefrom the ground.

6D6-3 THERMAL INSULATION

Any external wall of a building and any internal wallenclosing specific functions within a building shall bebuilt of appropriate insulation materials and shall be soconstructed as to resist the transmission of heat or coldfrom outside or from one room to another room of a building.

The above requirement shall be deemed to be satisfied if thetype and size of wall materials and the construction usedmeet the insulation characteristic requirement of a wall setby ESA.

The insulation material shall be covered by a fireprotective material if the former is likely to becombustible.

6D6-4 FIRE RESISTANCE

Internal fire spread

1/ To inhibit the spread of fire within the building,internal wall linings shall:

a) resist the spread of flame over their surfaces, andc) have; if ignited, a rate of heat release which isnot intense.

External fire spread

a) The external walls of a building shall resist the spreadof fire over the walls and from one building to another,having regard to the height . use and position ofbuilding.

b) The rate of fire spread over external internal walkssurfaces shall be within the limits set by ESA.

6D6-5 SOUND INSULATION

a) a dwelling from another dwelling or another building, b) any quiet working area from any other noisy working

area,

6E STAIRWAYS , RAMPS , CORRIDORS HAND RAILS & PARPETS

6E1 STAIRWAY RAMPS & CORRIDORS

1/ Any stairway, including any wall, screen, railing or balustrade to such stairway, shall be capable of safely sustaining any loads to which it is likely to be subjected and shall permit safe movement of persons fromfloor to floor.

2/ Any stairway ramp or corridor shall have dimensionsappropriate to its use.

3/ Any ramp or driveway shall be so designed that it issafe when used and is fit for the purpose for which itis intended.

4/ If a stairway serves both as an access to floors and as fire escape

route , it shall comply with the requirements of SECTION NINE of this Proclamation.

6E2 HANDRAILS AND PARAPETS

The protection of the edge of any balcony, bridge, flatroof or similar places shall be designed to prevent anyperson from falling from such balcony, bridge, flat roofor similar places.

6E3 DEEMED - TO - SATISFY REQUIRMENTS The requirements of the regulation 5F shall be deemed to

be satisfied with part 5F of the NBCE 000- 2004.


6E3-1 GENERAL

The requirements of regulation 5F shall be deemed to besatisfied where any building is designed, constructed andequipped in accordance with deemed-to satisfy rulescontained in the following provisions of this Part.

6E3-2 STAIR WAYS

1/ Stairs shall have equal riser and equal tread in any flight between consecutive floors.

2/ Over the whole width of stairways andramps, there shall be a minimum headroom of 2.0mmeasured vertically above the pitch line and minimum of1.5m measured at right angle to the pitch line ofconsecutive flights of stairs or ramp. The variation inthe dimensions of the risers and the going of thetreads in any one flight shall be not more than 6 mm.

3/ The rise of any step shall not exceed 200 mm . Thegoing and width of any tread shall be not less than 250mm.

4/ For both private and public stairs the proportion between riser and tread in stairways with parallel steps shall be according to the equation:

600mm < 2R+ T< 650mm

Where R: Riser in mm T: Tread in mm

5/ The minimum width of stairs in :

(a) Private dwelling units shall be at least 800mm.

(b) All other occupancy types shall be at least1100 mm.

6/ The minimum width of a landing shall be at leastequal to the minimum width of the flight in which itoccurs. It shall also run along this whole width of theflight(s) of stairs.

7/ The minimum tread width allowable at thenarrowest end of spiral stairs shall be 50 mm.

8/ For all conditions of Location andOccupancy types, total stairway width needed shall bein accordance with table 1 here under.

TABLE - 1

Maximum No of Occupants Minimum width (mm)Up to 50 300.0

51 - 100 900.0101 - 150 1100.0151 - 220 1100.0Above 220 1100.0 plus 100.0 mm

for every additional 25 persons

6E3-3 RAMPS

1. The maximum allowable slope for ramps

(a) Residential Occupancies shall be 1 in 10(b) Mercantile and Industrial Occupancy 1 in 6(C) All other Occupancies shall be 1 in 8

2. Ramp or drive way use by motor vehicles shall have a gradient of not more than 1 in 25 with in a distance of 5m from any street boundry crossed by such ramp or drive way.

3. ramp or device way used by pedestrians shall have a gradient of not more than 1 in 8

4. ramp designed for use by both vehicles & pedestrians shall have a wall way not less than 1.1m wide which shall be provided with a kerb not less than 150 mm high.

6E3-4 CORRIDORS

The minimum width of corridors in

a) Private dwelling units shall be at least 8.00mmb) all other occupancy types shall be at least 1100.

6E3-5 HAND RAILS

Handrail shall be constructed on:

a) On side if width of stairway does not exceed 1200.0mm, or

b) On two sides if the width of stairway exceeds 1200.0 mm.

Handrails shall be constructed in such a way that:

a) A minimum free space of 30.0mm is provided between handrail and the wall in which it is fixed, and

b) No handrail shall project to more than 100.0mm into the required width of stairway,

c) Location of handrails shall be at a height of between 800.0mm and 1000.0mm measured vertically from the pitch line to the top of the handrail,

d) No break or obstruction exists on handrails which hinders handhold.

Where the difference in elevation between adjacent level exceeds 600.0mm, all stairways, landings, ramps, balconies, mezzanine floors, French windows, raised walkways, and roofs to which access is provided, for other than for maintenance purposes, shall be protected by guards on all sides.

6E3-2-1 LENGTH OF FLIGHTS

The maximum number of risers in any one flight except in assembly occupancy shall not be more than 16. in assembly buildings, the number of risers in a flight of stairs shall not exceed 22.

6E3-2-2 LANDINGS

Landing shall be provided at the bottom of every flight ofstairs: however, the landing could be part of the main floor of the building. The minimum width of a landing shall be at least equal to the minimum width of the flightin which it occurs. It shall also run along the whole width of the flight(s) of stairs.

6F LIFTS AND ESCALATORS

6F1 GENERAL REQUIREMENT

In all occupancy types where there is any floor which is morethan 16m above the adjacent ground level, lift service shall beprovided.

6F2 FIRE RESISTANCE

The lift shaft shall be wholly enclosed in fire resistingmaterials having a notional fire resistance equal to that of thewalls of the building in which the lift is installed.

6F3 ESCALATORS

Safety of escalators shall be ensured when installed.

6F4. DEEMED - TO - SATISFY REQUIRMENTS

The requirements of the regulation 5H shall be deemed to be satisfied with part 5H of the NBCE 000- 2004.


6F4-1 GENERAL


6F4-2 The minimum number of lift cars and the capacity of each lift car required shall be according to table 3 here under.

Table - 3

Total occupantload

(persons)

Minimum passenger space Maximum number ofpersons/car

0 -150 4 4151-175 6 6175-200 8 8201-400 12 10401-600 18 10601-800 24 12801-1000 32 12above 1000 32+2 spaces per

additional 100 persons15

6F4-3 Lifts shall be situated so as to be easily accessible to users and to secure convenient and easy access at each floor. In all cases:

a) If lifts are grouped, not more than four liftsshall be arranged in a straight line.

b) Sufficient landing space shall be provided at each discharge point.

c) Where more than one lift is provided, each lift shall work independently as regards call and power supply.

6F4-4 In any passenger lift installation there shall be not lessthan one lift which shall -

(a) Have a minimum internal dimension of 1,1m in width and 1,4 m in depth;

(b) Have a doorway with an unobstructedwidth of not less than 800 mm; and

(C) Be fitted with handrails on two sides ata height of between 850 mm and 1000 mmabove the floor level of such lift.

6F5-5 lift pits shall be soundly constructed & maintainedin a dry condition, and shall be provided at the bottom ofevery lift.

6F6-6 The machine room shall be properly ventilated the room shallalso have a minimum heard room of 2.m over the whole area.

6F6-7 Lifts shall be inspected by a qualified person at leas oncevery 6 months, and shall be the responsibility of the ownerof the building . Inspection and tests shall be made by aqualified agent or person licensed to inspect and maintainlifts.

6F6-8 ESCALATORS

The limits angle of escalators elevation does not exceed 350

Traffic capacity width of escalators

Table 4

TreadW m

Max wbetween

balustrade

OverallCapacity(p/min)

Speed (m/s)0.45 0.6 0.75

0.6

0.8

1.0

0.85

1.05

1.25

1.25

1.45

1.65

65

95

125

90

120

150

95

125

155

7B LIGHTING AND VENTILATION

7B1 LIGHTING AND VENTILATION REQUIRMENTS

Any habitable room bathroom shower-room and room containing a WC panor urinal, or any room which is a parking garage shall be providedwith a means of lighting and ventilation which will enable such roomto be used, without determined to health or safety or causing anynuisance, for the purpose for which it is designed.

7B2 SPECIAL PROVISION OF NATURAL LIGHTING

Any habitable room in any dwelling house or dwelling unit, orany bedroom in any building used for residential orinstitutional occupancy shall, not with standing the provisionof artificial lighting, be provided with at least one openingfor natural light .

7B3 DESIGN OF ARTIFICIAL VENTILATION SYSTYES

Any rational design of an artificial ventilation system shallbe carried out by or under the supervision of a professionalengineer or other approved competent person and such engineeror person shall certify that the system has been designedproperly.

7B4 ARTIFICIAL VENTILATION PLANT

(1) Any plant forming part of an artificial ventilation systemshall be so designed, located and protected that:

(a) any condensate from such plant cannot be the cause ofdanger or nuisance to the public

(b) Inspection and servicing can be undertaken; and

(c) Unauthorized person cannot tamper with such plant.

7B5 DEEMED – TO – SATISFY REQUIRMENTS

The requirements of the regulation 7A shall be deemed to besatisfied with part 7A or the NBCE 000- 2004.

7B5 – 1 GENERAL

The regulation contained in part 7A shall be deemed tosatisfy where lighting and ventilation comply with deemedto satisfy rules contained in the following provisions ofthis part.

7B5 – 2 NATURAL LIGHTING

(1) Where for the purposes of natural lighting a room isprovided with one or more openings, such opening oropenings shall be situated in an external wall, or in asuitable position in the roof of the building.

DEEMED – TO – SATISFY RULES

(2) Where such opening is glazed it shall be glazed withtransparent or approved translucent glazing material.

(3) The area of such opening, or total area of such openings,inclusive or frames and glazing bars, shall be not lessthan 10% of the floor area of the room or rooms served byit, or 0.2m2, whichever is the greater.

7B5 – 3 ZONE OF SPACE FOR NATURAL LIGHTING

(1) Any opening contemplated in sub rule 7SA5-2(1) shall have azone of space outside it.

(2) Such opening may be divided into portions, each with its ownzone of space.

(3) The available length of any zone of space shall becalculated either as half the sum of the length of thevertical planes or as half the sum of the length of theplanes passing through the highest and lowest points ofthe opening, and the length of individual planes shall bemeasured as the distance along such plane from suchopening to:-(a) Any obstruction on the site which intersects such

plane; or(b) Where there is no such obstruction, to any statutory

building line on an adjoining site; or(c) Where there is no such obstruction or line, to the

boundary between the site and any adjoining site:Provided that where a zone extends across a streetreserve the statutory building line and the boundarycontemplated in paragraphs (b) and (c) respectively,shall be taken to mean the statutory building line andstreet boundary of the site opposite the siteconcerned.

(4) Where one or more of the planes bounding a zoneof space intersects an obstruction on the site theavailable length of such zone shall be not less than thatcontained in Table 1, where H represents the height of theobstruction above the level of the head of the openingconcerned: Provided that the shortest horizontal distancebetween the opening and such obstruction shall be not lessthan 1 m.

TABLE 1 – LENGTH OF ZONE OFSPACE

7B5 – 4 NATURAL VENTILATION

(1) Where for the purposes of natural ventilation any room is provided with an opening or openings:-(a) the position of such opening or openings in relation

to each other and to any internal doors to such room shall be so as to enable such room to be ventilated; and

(b) the arrangement and sizes of such openings in a garage shall be such that the quantity of noxious fumes or gases in such garage does not exceed a safe limit.

(2) Every such opening shall be either: -(a) an opening or door in an external wall; or(b) an open able glazed window in an external wall or in

a suitable position in the roof; or (c) an opening in the ceiling or at the top of an

internal or external wall, connected directly to a vertical ventilating flue.

(3) The total area of any opening, door or open able glazed window contemplated in sub rule 2(a) or (b) shall be not less than 5% of the floor area of the room, or 0.2m2, whichever is the greater.

(4) The total area of any opening contemplated in sub rule 7A5-4-2(c) shall be not less than 2% of the floor area of the room

1 2Type of room served by opening Length

of zoneof space

Habitable room in dwelling house, dwellingunit of a building used for a residential or institutional occupancy

1/3H

Any other habitable room 1/5H

Bathroom, shower or room containing a WC pan or urinal

1/10H

7B5– 5 NATURAL LIGHTING AND VENTILATION OF ROOMS OPENING ON TO ENCLOSED BALCONIES, GALLERIES, VERANDAHS AND COURTS

(1) Any room having an opening which opens onto any roofed andenclosed balcony gallery or verandah, as the case may be, shall be deemed to satisfy the requirements contained in regulation where such opening satisfies the requirements contained in 7A1.(a) a portion of the outer wall of any such balcony,

gallery or verandah has openings complying with sub rule 7A5-2-2 and the area of such openings is at least10% of the combined floor area of the room concerned and the balcony, gallery or verandah;

(b) any such balcony, gallery or verandah is provided withdoors or other openable areas having an area of at least 5% of the combined floor area of the room concerned and the balcony, gallery or verandah; and

(c) that portion of the outer wall of suchbalcony, gallery or verandah in which openingscontemplated in paragraphs (a) and (b) are formed isprovided with a zone of space complying with therequirements contained in rule 7A5-3.

(2) Any room having an opening which opens onto any enclosedand covered or partially covered court shall be deemed tosatisfy the requirements contained in regulation 7A1 wheresuch opening satisfies the requirements contained in rules7A5-2, 7A5-3 and 7A5-4: -(a) the cover to such court is adequately translucent;

and (b) the plan area of such cover is not more than one-

third of the plan area of such court; or(c) the plan area of such cover is more than one-third of

the plan area of such court but additional openingsfrom such court to the outside air have been providedto the extent that the total area of all such openingsis equal to at least two-thirds of the plan area ofsuch court:

Provided that where such court is to be occupied for anypurpose, whether or not any room has an opening which

opens onto such court, such cover shall be translucentand: -

(i) Additional openings shall be provided in accordance with paragraph (c) above; or

(ii)Such court shall be provided with artificial ventilation in accordance with rule 7A5-7

7B 5 – 6 ARTIFICIAL LIGHTING

Where in any building the requirements for lightingcontained in regulation 7A1 are to be satisfied by theinstallation of a system of artificial lighting suchlighting shall be accordance with the relevantrecommendations contained in NBCE of part 8A.

7B5 – 7 ARTIFICIAL VENTILATION

(1) (a) Outside air used in any artificialventilation system shall be introduced to thesystem from an inlet position to ensure that suchair is as far as possible free from localcontamination.

(b) Where it is not possible to so position suchinlet a filter should be provided which will reducecontamination of such air to an acceptable leveland prevent discharge into rooms of dust or fluffthat has accumulated

(2) The exhaust outlets for air, which has been used forartificial ventilation purposes, shall be so locatedand arranged as to ensure that such air does not causea nuisance nor contaminate any air which is likely tobe drawn into or ventilate any existing building.

(3) Exhaust outlets or air inlets forming part of any artificial ventilating system shall be protected by a substantial grille or screen through which a 12mm diameter sphere cannot pass.

(4) Where an artificial ventilation system has been connected to a room: -

(a) Designed to be occupied by persons suffering from infectious or contagious diseases;

(b) Containing a WC pan or urinal or used as asauna, darkroom or refuse storage room;

air from such room shall not be recalculated to or permitted topass into any other room, whether or not such room falls into the same occupancy category and all such air shall be discharged or exhausted to the outside air.

7C1 DESIGN, CONSTRUCTION AND INSTALLATION

Any system of space heating in any building shall be sodesigned, constructed and installed as to operate safely and anyflue, flue pipe or chimney used in such system shall be sodesigned as to safely remove any smoke or noxious gases producedby such system.

7C2 DEEMED – TO – SATISFY REQUIRMENTS

The requirements of the regulation 7B shall be deemed to besatisfied with part 7B of the NBCE 000- 2004.

7C2 – 1 GENERAL

The regulation contained in part 7B of the Regulationsshall be deemed to be satisfied where any flue pipe,chimney, hearth or fireplace complies with deemed- to –satisfy rules contained in the following provisions ofthis part.

7C2 – 2 FLUE PIPES

7C SPACE HEATING

DEEMED – TO – SATISFY URLES

(1) No flue pipe shall be designed and installed in such amanner that it will cause a fire hazard to any adjacentmaterial.

(2) No flue pipe shall be connected to any shaft or duct whichforms part of a ventilation system.

(3) No flue pipe shall be installed in any shaft or duct whichany service which may be adversely affected by heat are tobe situated.

7C2 – 3 CHIMNEYS

(1) Any chimney which is within or is attached to abuilding shall comply with the following requirements:

(a) It shall be designed and erected in non-combustiblematerials and in such a manner that it will not causea fire hazard to any adjacent material

(b) It shall not be installed in any shaft or duct inwhich any services which may be adversely affected byheat are to be situated

(c) No combustible material such as a timber floor joist,trimmer or roof truss shall be built within 200 mm ofthe inside of such chimney.

(2) (a) Where in any dwelling house or dwelling unit thewalls of any chimney are erected of masonry units,such walls shall be of solid masonry, and where suchwalls are less than 190 mm thick such chimney shall belined in compliance with sub rule (3) provided thatany such walls shall not be reduced to less than 90 mmin thickness.

(b) Without prejudice to the requirements contained inparagraph (a) the thickness of any chimney wall in anybuilding covered by a combustible roof shall be notless than 190 mm.

(3) Where any chimney is provided with a flue lining, suchlining shall be made of material which will withstand anyaction of the flue gases and resist, without cracking orsoftening, the temperatures to which it may be subjectedand it shall extend throughout the full height of suchchimney.

(4) Where any chimney has either a laterally unsupportedheight greater than 4m or a laterally unsupported heightgreater than six times its minimum lateral dimension itshall be designed in accordance with the requirements forthe design of structural systems.

(5) The height of any chimney outlet shall be not less than: -(a) 1m above the highest point of contact between such

chimney and the roof: Provided that where a roof hasan angle of slope on both side of a ridge of not lessthan 100 from the horizontal and the center line ofthe flue of the chimney is not more than 600 mm fromthe ridge, the height of such chimney outlet shall notbe less than 600 mm above such ridge;

(b) 1 m above the eaves level in the case of any chimneywhich does not pass through the roof of a building butis within 1.5 m of the nearest wall of such building:Provided that at a gable end of such building suchchimney shall extend not less than 600 mm above thehighest point of such gable end.

7C2 – 4 HEARTHS AND FIREPLACES FOR SOLID FUEL APPLIANCES

(1) Every fireplace used for the burning of solid fuel shallhave a hearth made of non-combustible material ofadequate thickness.

(2) such hearth shall extend not less than 500 mm in front ofthe grate or fire basket and not less than 300 mm beyondeach side of such grate or fire basket.

(3) No timber floor joist or trimmer or any othercombustible material shall be built into any hearth.

7 ELECTRICAL INSTALLATION, LIGHTING, VENTILATION& SPACE HEATING

7A. ELECTRICAL INSTALLATIONS

7A1 OBERVANCE OF SAFETY STANDARDARDS

1/ Electrical installation to buildings should be done incompliance with the requirements of safety standards suchthat no danger associated with the electricalinstallations exits

2/ All systems in electrical installation work should beprotected against over current

7A2 ELECTRICAL FITTINGS AND FIXTURES

All materials, fittings and fixtures used for electricalinstallations should be of appropriate quality standards

7A3. DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 8A shall be deemed to be satisfied with part 8A of the NBCE 000- 2004.

DEEMED - TO - SFTISFY RULES

7A3-1- GENERAL

(1) The regulation contained in part 8 shall be deemed to satisfy where electrical installations comply with deemed to satisfy rules contained in the following provisions of this part.

(2) Electrical installation shall at all times be carried out in compliance with the requirements of EBCS-10 and those of the power supply Authority, whichever is stringent.

(3) All electrical materials, fittings, fixtures, etc shall satisfy the requirements of EBCS-10.

(4) In large installation works, the requirements for special rooms or electrical mains, transformers, switchgears and the like shall comply with the provisions of EBCS-1-.

(5) Levels of illumination for different types of visual tasksshall be in accordance with the provisions of EBCS-16

7A3-2 SUPPLY AND DISTRIBUTION OF ELECTRICITY

(1) Circuit breakers of miniature circuit breakers or a linkedswitch shall be provided on each line of conductor of the supply mains at the point of entry.

(2) The main switch should be easily accessible and situated as near as possible to the consumer control unit.

(3) Switch boards should be located in dry and ventilated places. Where switchboards are exposed, they should be in closed or covered to avoid moisture, dust or other damaging agents.

(4) Detail requirements on main and branch distribution boards, main switches and switch boards shall be in accordance with the provisions of EBCS-10

(6) Appropriate protection shall be provided at switch boards and distribution boards for all circuits and sub-circuits against over-current.

7A3-3 WIRING

(1) conductors, switches and accessories shall be of such a size as to be capable of carrying, without their respective ratings being exceeded, the maximum current which will normally flow through them.

(2) Estimation of load requirements shall be in accordance with the provisions of EBCS-10.

(3) Main circuit and sub-circuit in the premises shall be provided with leakage-protective devices which, on the occurrence of an earth-fault, will disconnect the defective circuit from the supply.

(4) Metal work not intended to conduct electricity but is liable to get in touch with an exposed wire shall be earthed.

(5) Supply of electricity to electric signs, notices, advertising devices and to electric-discharge lamp installations shall be possible to cut off by switches or other means of control. Such switches or controls shall be protected from abuse or misuse by the public.

(6) Plugs and socket outlets in public buildings shall be of atype that the pins cannot be touched while they are live.

(7) Detailed requirements on insulation, protective covering, and conduits for wiring shall be in accordance with the provisions of EBCS-10.

(8) Safety requirements on high voltage conductors of electric-discharge lamps shall be in accordance with the provisions of EBCS-10.

(9) Electrical wiring, other than the wires serving the ventilation system, shall not be placed in any ventilationduct. Wiring used to operate or light the ventilation system shall have its own protective covering.

(10) Where conductors pass through walls and floors, wires shall pass freely through protective conduits and boxes inaccordance with the provisions of EBCS-10.

7A3-4 FITTINGS AND ACCESSORIES

(1) Fittings such as socket outlets and switches shall be of appropriate type designed to withstand the current-rating for the circuits. Positions and fittings shall be in accordance with the recommendations in EBCS-10

(2) In an earthed system, socket outlets shall be of three-pintype with the third terminal connected to the earth.

7A3-5 ELECTRO MECHANICAL INSTALLATIONS

1/ Electrical wiring & installation of lifts and other electro-mechanical devices shall be carried out by a qualified agent or person licensed to install such lifts &devices

2/ Safety & efficiency requirements O electro mechanical installations, their electrical wiring, and such other retirements shall be in accordance with the provisions of EBCS - 10

8. WATER SUPPLY & SANITATION

8A WATER SUPPLY

8A1 WATER SUPPLY REQUIRMENTS

(1) Any building intended for occupancy by people should be provided with safe and adequate water supply . Such water supply systems have adequate supply, distribution and storage systems

(2) Water supply systems to any building should be compliant to health standards.

(3) Water supply systems should be accessible for inspection and testing

8A2. DEEMED - TO - SATISFY REQUIRMENTS

The requirements of the regulation 9A shall be deemed to be satisfied with part 9A of the NBCE 000- 2004.

8A2 –1 GENERAL

The regulation contained in part 9A shall be deemed - to -satisfy where water supply comply with deemed to satisfyrules contained in the following provisions of this part.

DEEMED – TO – SATISFY RULES

8A2 – 2 WATER SUPPLY REQUIREMENT

(1) All buildings intended for human habitation shall beprovided with safe and adequate water supply.

(2) The water demand for the different occupancies shall be inaccordance with the provisions of EBCS – 9.

8A2 – 3 WATER DISTRIBUTION

(1) The water distribution system shall allow the supply ofadequate water safely to the required premises withoutbeing contaminated and without leakage.

(2) Appropriate materials, fittings and appliances shall beused in distribution systems.

(3) The distribution system and the material fittings andappliances for such system shall be in accordance with theprovisions of EBCS-9.

8A2 – 4 STORAGE OF WATER

(1) An adequate and proper means of water storage shall beprovided for public buildings, multifamily residentialunits, and institutional buildings.

(2) The materials used for water – storage means shall be inaccordance with the provisions of EBCS-9.

(3) The type and size of water – storage means shall be inaccordance with the provisions of EBCS-9.

8A2 – 5 HOTE-WATER SUPPLY SYSTEM

(1) Where the supply of hot water is necessary, a water heateror a hot water container of appropriate size and materialshall be provided.

(2) A hot water distribution system shall be provided withappropriate pipes and pipe layouts.

(3) Appropriate insulation for the pipes, where necessary,shall be provided to maintain the required temperature ofthe water distributed to various points.

(4) The types of hot-water container of water heater, thedistribution system and the types of materials, fittingsand appliances shall be in accordance with the provisionsof EBCS-9.

8A2 – 6 CLEANING AND DISINFECTION OF THE SUPPLY SYSTEM

(1) Storage tanks and water distribution network shall becleaned and disinfected with appropriate chemicals uponinstallation and after every major repair.

(2) The method of clearing and the type of disinfectants usedshall be in accordance with the provisions of EBCS-9.

8A2 – 7 INSPECTION AND TESTING

(1) Pipes fittings and appliances shall be tested before andafter laying.

(2) Quality of materials and method of test shall be inaccordance with the provisions of EBCS-9

8B DRAINAGE

8B1 COMPULSORY DRAINAGE OF BUILDINGS

1/ Where in respect of any building a suitable means of disposalof water borne sewage is available the owner of such buildingshall provide a drainage installation.

2/ Where a sewer is or becomes available for the drainage ofsuch building the owner of such building shall, at his owncost, lay alter or extend any drain serving such building toterminate at a location and level as prescribed by the LocalAuthority for the connection to such sewer. In the case ofany existing building the Local Authority shall serve anotice, in writing, to the owner stating the period withinwhich the connection shall be made.

3/ Where a connecting sewer has been provided to any site theowner of such site shall cause all sewage discharged from anybuilding on such site to be conveyed by a drain to suchconnecting sewer.

4/ Where the owner of such building fails to lay, alter orextend any drain in terms of sub article (2) of thisProclamation, the Local Authority may lay, alter or extendsuch drain and recover the costs there of from the owner.Provided that the Local Authority shall, before carrying outsuch work give not less than 14 days notice to such owner ofits intention to carry out such work.

8B2 DESIGN OF DRAINAGE INSTALLATIONS

Any drainage installation in any building shall be so designedand constructed that :

1/ An adequate number of sanitary fixtures isprovided in relation to the population and class ofoccupancy of such building.

2/ Such installation is capable of carrying the designedhydraulic load.

3/ Such installation is capable of discharging into anycommon drain, connecting sewer or sewer provided toaccept such discharge.

4/ All components and materials used in such installationare watertight:

5/ No nuisance or danger to health will be caused as a resultof operation of any such installation.

6/ Any drain in such system is of such strength having regardto the manner in which it is bedded or supported, that itis capable of sustaining the loads and forces to which itmay normally be subjected and that it is, where necessaryprotected against any damage.

7/ All sanitary fixtures are so located that they are easilyaccessible to those persons they are intended to serve

8/ Any necessary inspection cleaning and maintenancerequired, may be performed through the means of accessprovided.

8B3 CONTROL OF OBJECTIONABLE DISCHARGE

1/ No person shall cause or permit sewage discharged from anysanitary fixture to enter any storm water drain, storm watersewer or excavated or constructed water course, any river,stream or natural water course whether ordinarily orotherwise or any street or other site

2/ No person shall cause or permit storm water to enter anydrainage installation on any site.

3/ The Local Authority may by notice in writing, order the ownerof any site to execute, at his own cost, any precautionarymeasures required by the Local Authority to prevent suchentry contemplated in this Proclamation.

4/ No person shall, without the written permission ofthe Local Authority, discharge or cause the discharge of anywater from a swimming pool, fountain or reservoir, eitherdirectly or indirectly, onto any public street or publicplace, or onto any site other than onto the site upon whichsuch swimming pool, fountain or reservoir is situated.

8B4 INDUSTRIAL EFFLUENT1/ Where a person has obtained approval to discharge into any

drain any liquid or solid matter, other than soil water orwaste water, and where any additional drainage and otherinstallations including storage, pre-treatment andmetering installations are required by the Local Authority asa condition of such approval, such person shall submit anyplans and other details of such installations required by theLocal Authority.

2/ The installations contemplated in sub-article (1) of thisArticle shall be constructed in accordance with the relevantrequirements of this Proclamation and shall be maintained ingood working order.

8B5 DISCONNECTIONS 1/ Where any soil fixture is permanently disconnected from any

soil pipe, or where any soil pipe is permanently disconnectedfrom any drain, the owner shall seal the opening to such pipeor drain in such a manner that such disconnection will not bea danger to health.

2/ Where any drainage installation is disconnected from aconnecting sewer the Local Authority shall be notified, inwriting, by the owner thereof within 30 days from the date ofsuch disconnection.

8B6 UNAUTHORIZED DRAINAGE WORK Unless authorized by the Local Authority-

1/ No person shall in any manner interfere with any sewer orconnecting sewer,

2/ No person shall break into or interfere with any part of adrainage installation other than for the purpose of repairand maintenance.

8B7 INSPECTION AND TESTING OF DRAINAGE INSTALLATIONS1/ Any drain, discharge pipe or ventilating pipe shall be so

installed as to be capable of withstanding the test pressurescontemplated in design.

2/ Any equipment, material or labor required for any inspectionor any testing contemplated in these regulations shall bemade available by the person installing such pipe or drain.

3/ No person shall put into use any drainage installation beforesuch installation has been inspected, tested and passed bythe Local Authority as complying with these regulations.

9B8 DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 9B shall be deemed to be satisfied with part 9B of the NBCE 000- 2004.

DEEMED TO SATISFY RULES

8B8-1 GENERAL

(a) Regulation 9B8- shall be deemed to be satisfied whereany drainage installation complies with deemed-to-satisfyrules contained in the following provisions of this Part.

(b) All drainage installation works should comply with the requirements of EBCS9

8B8-2 MATERIALS, PIPES, FITTINGS AND JOINTS

In any drainage installation any type of joint between pipesor between such pipes and fittings shall

(a) be appropriate to the materials of which such pipes

and fittings are made;(b) remain watertight to the standard set in this code

under normal working conditions or where there maybe any differential movement between such pipes and any building or ground or other construction forming partof the drainage installation; and

( C) be able to withstand an internal water pressure of50 kPa and an external water pressure of 30 kPa without leaking.

8B8-3 SANITARY FIXTURE STANDARDS

8B8-3.1 Any sanitary fixture shall be made of impermeable, non-corrosive material, shall have a smooth and readily cleanable surface and shall be so constructed and fitted so as to discharge through a trap, into a soil pipe or waste pipe, as the case may be.

8B8-3.2 The water supply outlet to any waste fixture shall be situated not less than 20 mm above the flood-level rim of such fixture: Provided that this requirement shall not apply to any bidet.

8B8-4 STANDARDS FOR WC PANS

8B8-4.1 Any WC pan shall be so designed and manufactured as to comply with the relevant requirements contained in EBCS9 Provided that any WC pan which has a horizontal outlet spigot where the connection between such spigot and the soil pipe connected to it is made by an adaptor which can provide a slope downwards at a gradient of not less than 1

in 40 towards the inlet of such soil pipe may be installedin any building.

8B8-4.2 Any WC pan of the pedestal type shall be manufactured as asingle unit and where such pan is installed in a position so that the joint between its outlet spigot and the soil pipe into which it discharges, is concealed, such pan shall be installed in such a manner that there is ready access to such joint.

8B8-4.3 Any WC pan of the wall-mounted type shall be manufactured as a single unit and shall be so constructed that such pancan -

(a) be firmly attached to a wall; or(b) be rigidly supported by a bracket.

8B8-4.4 Any WC pan of the squat type may be manufactured in twoparts where the joint between the upper and lower parts issituated above the normal level of the water seal in thetrap of such pan.

8B8-4.5 Any WC pan shall be served by its own separateflushing device.

8B8-4.6 Any seat associated with any WC pan shall have a smoothnon-absorbent surface and be held in place by fastenersmade of corrosion resistant material.

8B8-5 STANDARDS FOR URINALS

8B8-5.1 (a) Any urinal shall be of either one or more slabs, or a stall, trough, bowl

or other suitable receptacle which shall have a smooth and readily cleanable non-absorbent surface.

(b) Where a slab or through type urinal is provided a600 mm length of such slab or trough shall be deemedto be equivalent to one urinal stall or bowl.

8B8-5.2 Any urinal or group of urinals should be provided with aflushing device: Provided that this requirement shall notapply with regard to any urinal that is specificallydesigned and constructed as a flush-less urinal.

8B8-5.3 Any urinal shall be so designed and installed that all ofits surface, within its perimeter, from a distance of notmore than 100 mm below the outlet of its flushing device,is cleaned by the water discharged from the device.

8B8-5.4 When any urinal is made of stainless steel it shall bemade as a single unit and shall be so constructed that -

(a) Any weld shall have a degree of corrosion resistancenot less than that of the parent metal;

(b) Any crevice on the exposed side of joints shall befilled with weld metal;

(c) Any removable corner shall be attached by means of acorrosion resistant fastener.

8B8-5.5 The channel fitted to any slab or stall type urinal shallbe graded with a fall of not less than 1 in 100 and theoutlet to this channel shall -

(a) Serve not more than 4.8 m of slab urinal, or 8 stallunits; and

(b) Be provided with a trap, which shall be provided with a corrosion resistant grating designed to retain solid matter without obstructing the flow of liquids: Provided that any such grating shall not beinstalled in the case of any trap which serves any symphonic urinal.

8B8-5.6 Any joint between any parts of a urinal shall be urine resistant and watertight.

8B8-5.7 (a) Any urinal of the wall-mounted type shall be so constructed that it shall

Discharge by gravity and have the following minimum dimensions:(i)A vertical distance of 300 mm from the outlet of

the bowl to the lowest point of discharge offlushing water into the urinal;

(ii) An external width of 300 mm at the widest point;

(iii) A horizontal distance of 230 mm from the frontof the lip to the wetted face immediately oppositethe center point of such lip; and

(b) such urinal shall be manufactured as a single unitand where it is a urinal flushed by wash-down actionit shall be provided with a separate trap or where it

is flushed by symphonic or jet action it shall havean integral trap.

8B8-5.8 Any urinal having dimensions less than those contained insub rule 9B8-5.7(a) may be permitted if a trapped floordrain is installed in the same room.

8B8-5.9 Any flushness urinal shall -(a) Be constructed of inert material with a smooth finish

and a high resistance to water absorption;(b) Be so constructed that the inner surface of any bowl

and outlet is smoothly curved to ensure that any flowof urine into any trap is unimpeded and cannot pondin any such urinal;

(c) Have waste fittings and discharge piping made ofplastics material or other inert material resistantto corrosion.

8B8-6 FLEXIBLE CONNECTORS FOR WC PANS

8B8-6.1 Any flexible connector, which is used to connect the outlet spigot of a WC, pan to any soil pipe shall not permit any leakage of soil water at the joint.

8B8-6.2 Such connector shall have maximum water absorption of 2 %and shall be flexible to accommodate any dimensionalvariations between, and any surface irregularities of,such spigot and pipe.

8B8-6.3 The requirements contained in sub-rules 9B8-6.1 and 9B8-6.2 shall be deemed to be satisfied if such connectorcomplies with the requirements contained in EBCS -9.

8B8-7 ELECTRICAL SANITARY FIXTURES

8B8-7.1 Any clothes-washing machine or dishwashing machine whichis permanently connected to any drainage installationshall discharge through a trap into a waste pipe.

8B8-7.2 No person shall incorporate into any drainageinstallation a mechanical food waste or other disposalunit or garbage grinder which has a power capacity inexcess of 500 W unless -

(a) the owner of the building has registered suchunit or grinder with the local authority or it is

shown on an approved plan and such local authorityis satisfied that the working of any sewerage orsewage treatment system shall not thereby beimpaired; and

(b) such unit or garbage grinder has beeninstalled in compliance with the relevantrequirements contained in the compulsoryspecification for the safety of electricalappliances

8B8-7.3 Any food-waste disposal unit shall discharge through atrap having a depth of water seal of not less than therelevant depth given in the rules contained in this Part.

8B8-7.4 Where any food-waste disposal unit is- (a) installed in contraventionof the provisions of these rules; or (b) is not functioning

efficiently or is impairing the work of any partof the sewerage system, the local authority mayserve a notice on the owner of such unit, or theowner or the occupier of the building in whichsuch unit is installed, requiring him to remove oralter such unit, or to alter the manner of itsinstallation, by a date and on such conditions asit may determine.

8B8-7.5 The owner shall notify the local authority within 14 daysof the removal of any registered unit or grinder.

8B8-8 MACERATOR TYPE SANITARY-TOWEL DISPOSERS

(a) In any room containingsanitary fixtures designated for the use offemales, suitable means shall be provided forthe disposal of sanitary towels.

(b) Any macerator type sanitary-towel disposershall discharge through a trap into a soilpipe.

8B8-9 SEWAGE LIFTS

8B8-9.1 Where any building is at such a level in relation tothe nearest connecting sewer that any drainageinstallation serving such building cannot discharge intosuch connecting sewer by gravitation the owner of suchbuilding shall, at his own cost, install an approvedappliance and where required by the local authority,standby facilities, for the purpose of raising sewage toa level which will enable it to gravitate to suchconnecting sewer.

8B8-9.2 Such appliance shall be operated and maintained at the cost of such owner and shall be so designed and located as not to be offensive or to be injurious or dangerous tohealth.

8B8-l0 CONSERVANCY TANKS, SEPTIC TANKS AND FRENCH DRAINS

8B8-l0.1 Any conservancy tank shall, subject to the clearing services provided by the local authority in question -(a) Have a capacity as prescribed by such local

authority;(b) Be constructed with means of access for cleaning;(c) Be provided with a means for clearing as prescribed

by such local authority.

8B8-10.2 Any conservancy, tank or septic tank to be used on asite for the reception of sewage shall -(a) be so designed and constructed that it will be

impervious to liquid;(b) be so sited -

(I)that there will be a ready means of access forthe clearing of such tank;

(II) as not to endanger the structure of any buildingor any services on the site; and

(c) be so designed and sited that it is not likely tobecome a source of nuisance or a danger to health.

8B8-10.3 Any septic tank shall, subject to the requirements contained in sub rule 9B8-10.7, discharge to a drain.

8B8-10.4 Any septic tank shall -(a) Where it is to serve a dwelling house or dwelling

unit be of a designed capacity of not less than 1.7

M3 and be capable of receiving one day's sewage flowas given in Table 1.

(b) Where it is to serve any building not being adwelling house or dwelling unit, be of a designedcapacity not less than 3 times the daily flow fromsuch building, using the per capita sewage flow givenin Table 2 or such other flow as may be determined bythe local authority where not so given.

(c) Be so constructed that -(i)it is provided with a means of access for the

purpose of emptying and cleaning; and(ii) the depth in such tank below the outlet invert

is not less than 1,0 m and there is an airspace of not less than 200 mm between the surface of the liquid contained therein and the underside ofthe top cover of such tank.

TABLE 1 - SEWAGE FLOWS FROM DWELLING HOUSES OR DWELLING UNITS

1 2

Number of Sewage flow,bedroomsl iters per day

2 700 3 900

4 1100 5 1400

TABLE 2 - SEWAGE FLOW FROM BUILDINGS NOTBEING DWELLING HOUSES OR DWELLING UNITS

1 2

Sewage flow,

Type of establishment liters per

Person per day Boarding houses 110 (Additional kitchen wastes for non-resident boarders) 23

Hotels without private baths 110 Hotels with private baths 140 Restaurants (toilet & kitchen wastes perpatron) 20 Tourist camps or caravan parks with central bathhouse 90 Day schools 37 Day workers at offices per shift

90 Hospitals 500 Factories (liters per person pershift, exclusive of industrial wastes)

140 Swimming baths 9 Motels (per bed) 90 Drive-in theatres (per car space)

9

8B8-10.5 No industrial effluent shall be allowed to flow into anyseptic tank.

8B8-10.6 Any French drain which is to receive effluent or any evapo-transpirative bed shall

(a) be so constructed and located as not to cause thepollution of any spring, stream, well or other sourceof water which is used or is likely to be used fordrinking, domestic or kitchen purposes;

(b) have a capacity, be so constructed and containsuitable material so as to adequately receive anddispose of any effluent flowing into it; and

(c) be not less than 3 m from any building or boundary ofthe site on which it is situated.

8B8-10.7 (a) The ground in which it is proposed toconstruct a french drain shall be

tested for percolation in accordance with the methodcontained in rule9B8-28.

(b) Where, after testing in accordance with rule 9B8-28,the site has been found suitable for the use of afrench drain, such french drain shall be constructedto such dimensions that the rate of application ofeffluent to the infiltration area, within suchfrench drain, does not exceed the values given incolumn 2 of Table 3 as appropriate to thepercolation rate given in column 1 of such table.

TABLE 3 - RATES OF PERCOLATION ANDEFFLUENT APPLICATION

1 2

Percolation rate:Average Rate of application of time for 25 mm fall effluent to subsoil infiltration of test water level. areas, liters per ml of French minutes drain wall area per day

0-3 108 max. 3-5 108-100 6-10 99-80 11-15 79-65

16-20 64-53 21-26 52-40 27-30 39-33 Over 30 Not permitted

NOTE: Intermediate values to be obtained by interpolation.

(c) No French drain shall be constructed in any ground where(I) Such ground has a percolation rate exceeding

30 minutes;(II) Any effluent may flow out due to the contours

of or the strata forming such ground;(Ill) the site to be affected by such effluent

is of insufficient size to accommodate thesoaking away of the effluent;

(iv) The level of the water table is or may be suchas to prevent adequate percolation; or

(v)Any site may be affected by the presence ofsuch french drain.

8B8-11 DISCHARGES FROM WASHING AREAS

8B8-1l.1 (a) Any building used as a stable, garage,cowshed, dairy, kennel, butchery,Abattoir or any vehicle washing area or othersimilar area that requires regular cleansing whichproduces waste water or soil water shall be con-nected to a drain which shall serve such building orarea;

(b)Such area shall be paved with an approved imperviousmaterial, and be graded to a gully which shall be

fitted with a removable grating and be connected toan approved silt trap, grease trap, petrol and oilinterceptor or two or more of the foregoing.

8B8-1 1.2 Such area shall -(a) Be roofed over; and(b) Be surrounded by a kerb not less than 100 mm high or

it shall be elevated above the immediatelysurrounding ground level by not less than 100 mm.

9B8-12 DISCHARGES FROM SWIMMING BATHS, SWIMMING POOLS, FOUNTAINS OR RESERVOIRS

8B8-12.1 Where any swimming bath, swimming pool, fountain or reservoir is required by the owner thereof to have an overflow to lead away excess rainwater, such overflow shall be designed and constructed to discharge -(a) Onto the site upon which such bath, pool, fountain

or reservoir is situated; or(b) Into an approved surface channel, storm water drain

or naturalwater course.

9B8-12.2 Any swimming bath, swimming pool, fountain or reservoirshall be so designed and constructed that the water fromthe backwashing of any filter is discharged onto the siteupon which such bath, pool, fountain or reservoir issituated or, with approval, into a drain.

8B8-13 PROVISION OF SANITARY FIXTURES

8B8-13.1 The number of sanitary fixtures to be provided in anybuilding shall be based on the population for which suchbuilding is designed, and such population shall becalculated in terms of regulation 1D2:

Provided that -(a) where in any particular occupancy, separate sanitary

facilities are provided for each sex the numberof .sanitary fixtures installed for them shall bebased on the population of that particular sex forwhich such facilities are intended, and if the number

of persons of each sex cannot be determined it shallbe assumed that they are in equal proportions;

(b) where fixtures are to be situated in separate groups the number of fixtures in any group shall be based on the calculation of that portion of the totalpopulation for which the group is intended;

(c) any building for which the population cannot bedetermined shall, where such building contains one ormore habitable rooms, be provided with at least 1 WCpan and 1 washbasin.

8B8-13.2 Subject to the requirements contained in sub rule 9B8-13.1,the minimum number of sanitary fittings to be provided in any building shall be as given in Tables 48-, and such fixtures shall -

(a) Be situated in places which are convenient of access;and

(b) Where necessary shall be designated for the use of males or females orBoth: Provided that any room containing fixturesdesignated for the use of both sexes shall be capableof being locked from inside.

TABLE 4 PROVISION OF SANITARY FIXTURES

1 2 3Type of occupancy and population

Fixture Exceptions

A1: Personnel Public and visitors

Table 6Males:1 WC pan1 washbasinFemales:1 WC pan1 washbasin

a) in any building where facilities in accordance with Table 6 are available to both personnel and the public or visitor, no separate facilities shall be required for the public or visitors.

b) No separate facilities forthe public or visitors shallbe required within any shophaving a floor area of lessthan 50 m2.

A2: Personnel Public and visitors Peak demand No peak demand Participants insports

Table 6

Table 7 ( part a)Table 7 (part b)Table 8

c) In any group of shopsunder one ownership or in anyshopping complex on a singlesitei) facilities for personnelmay be situated at convenientlocations and not necessarilyin any particular shop orshops.ii) facilities for thepublic and visitors may besituated at convenientlocations and not necessarilyin any p[particular shop orshops. iii) facilities for personnelmay be grouped or combinedwith those provided for theuse of the public or visitors.d) in any occupancy wherepersonnel are exposed to highrisk substance. dirt. filth ,dust, soot, oil grease or anysimilar substance, exposure towhich is such that showers arenecessary, at least 1 show per15 persons shall be providedseparately for each sex andsuch showers shall be locatedin, or have direct access to,a change room.

A3 Table 6A4: personnel Public and visitors


A5: public and visitors Peak demand No peak demand Participants in sport

Table 7 (part a)Table 7 (part b)Table 8

B1, B2 and B3 Personnel Public and visitors

Table 61 WC pan1 washbasin

C1 and C2 Personnel Public and visitors


D1, D2 and D3 Personnel Public and visitors

D4

Table 6No separate provision RequiredNo provision required

F1: personnel Public and visitors

Table 6Males:1 WC pan1 WashbasinFemales1 Washbasin

F2 and F3 Personnel Public and visitors

Table 61 WC pan1 washbasin

G1: personnel Public and

Table 6Males:

visitors 1 WC pan1 WashbasinFemales:1 WC pan1 Washbasin

H1: personnel Public and visitors

Table 6Males:1 WC pan1 WashbasinFemales:1 washbasinTable 5

Any single hotel room or site or any servant's room with its own facilities need not be provided with separate facilities for males and females.

Showers may be substituted for baths in the following maximumratios:Males - two -thirds of totalFemales - one-third of total

H2 Table 5

H3 and H4: within each dwelling unit

1 WC pan1 washbasin1 bath or shower

J1, J2,J3 and J4 Table 6Educational institutionsClassrooms and lecture rooms (A3 occupancy) Personnel Students or pupilsDormitories or other residential accommodation (H2 occupancy) Personnel Students or pupils

Table 6Table 7

Table 5Table 5

In primary schools the indicated number of sanitary facilities shall in each case be increased by one.

Separate facilities for personnel and students or pupils shall not be required where all facilities are available to both groups.

Separate facilities for residential accommodation and classrooms or lecture rooms shall not e required where facilities in one are easily available to the other.

E1, E2 and E3 Number to be provided depends on type and designof institution.

Table 5 may be used as a guide.

TABLE 51 2 3 4 5 6 7 8

For apopulation of upto -

Number of sanitary fixtures to be installed relative tothe population given in column 1Males Females

Wc pans Urinals Washbasins

Baths

WCpans

Washbasins

Baths

820406080100120140180

112344555

12346891011

123456678

123456678

2346912141516

123456788

123456788

For apopulatio

n inexcess of190 add 1WC pan

for every50

persons

For apopulatio

n inexcess of180 and 1urinal

for every40

persons

For apopulationin excessof 180 add1 washbasinand 1 bathfor every50 persons

For a population inexcess of 180 add 1 WCpan, 1 washbasin and 1

bath for every 60persons

TABLE 6

1 2 3 4 5 6For a

population of upto -

Number of sanitary fixtures to be installed relative tothe population given in column 1

Males Females


Wc Pans Washbasins

15306090120

11233

12356

12345

23579

1

2345

For a population in excessof 120 add 1 Wc pan, 1urinal and washbasin for

every 100 persons

For apopulation inexcess of 120add 1 WC panfor every 50

persons

For apopulationin excess of120 add awashbasinfor every

100 persons

Table 7

1 2 3 4 5 6

For apopulation of upto -


Males Females


Wc Pans Washbasins

a) Facilities subject to peak demand

50100150250500

1 0001 500

1112334

123471215

1112345

2357121620

1234678

For apopulatio

n inexcess of1500 add1 WC panfor every

500persons

For apopulatio

n inexcess of1500 add1 urinalpan for

every 300persons

For apopulation inexcessof 1500add 1

washbasin forevery500

persons

For apopulation

in excess of1500 add 1WC pan forevery 150persons

For apopulationin excess of1 500 add awashbasinfor every

500 persons

b) Facilities subject to peak demand50100150250500

1 0001 500

1112223

-123467

1112356

12356810

1123467

For apopulatio

n inexcess of1500 add1 WC panfor every

1000persons

For apopulatio

n inexcess of1500 add1 urinalpan for

every 500persons

For apopulation inexcessof 1500add 1

washbasin forevery700

persons

For apopulation

in excess of1500 add 1WC pan forevery 300persons

For apopulationin excess of1 500 add awashbasinfor every

700 persons

Table 8

1 2 3 4 5 6 7 8For a

population of upto -


Males FemalesWc pans Urinals Washbas

insShowers

WCpans

Washbasins

Whowers

1020

11

12

12

22

23

12

22

30406080100

23344

23456

33455

33556

567910

33455

34556

For a populationin excess of 100add 1 WC pan and 1urinal for every

100 persons

For apopulation inexcessof 100and 1

washbasin lfor

every100

persons

For apopulationin

excess of100

add 1shower forevery40

persons

For apopulation inexcess of 100add 1 WC pan,1 washbasinfor every80 persons

For apopulationin

excessof 100add 1showerfor

every40

persons

8B8-14 HYDRAULIC LOADING OF DRAINAGE INSTALLATIONS

8B8-14.1 The hydraulic load discharged into or carried by any discharge pipe or any drain shall be calculated in units, referred to as "fixture units".

8B8-I4.2 The hydraulic load at any point in any discharge pipe or any drain shall be the sum of the fixture unit ratings of all sanitary fixtures, the discharges from which enter the discharge pipe or drain upstream of such point.

8B8-14.3 The hydraulic load discharged from any sanitary fixture specified in column 1 of Table 9 shall be as given in column 3, and in the case of any sanitary fixture not listed in column 1 the diameter of the trap outlet of such a fixture, when identified in column 2, shall indicate the hydraulic load, given in column 3, which is to be prescribed for such a fixture.

TABLE 9 - FIXTURE UNIT RATINGS OF SANITARYFIXTURES

1 2 3

Examples of Nominal diameter of Hydraulic load, sanitary fixtures trap, mm fixture units

Washbasin, bidet, wall- 32 1 mounted urinal (separate trap)

Bath, sink, shower, wash 40 2

trough

Wall-mounted urinal with 50 3 Integral trap, commercial electrical sanitary fixtures

75 or 80 5

WC pan 100 8

Sanitary group 12

8B8-15 DRAINAGE SYSTEMS

8B8-15.1 The following requirements shall apply with regardto the single stack system:

(a) It shall only be installed where the building inquestion is of the office class which has sanitaryfixtures installed in ranges or of the residentialclass which has sanitary fixtures installed ingroups.

(b) It shall not be installed in any residential buildingexceeding 30 storeys

Line height or in any office building exceeding 24 storeys in height above the lowest ground level abutting such building.

(c) No trap vents for the protection of any water sealsshall be required in terms of this rule or in termsof sub rule 9B8-15.2 or 9B8-15.3.

(d) Any supplementary vent stack contemplated in sub

rules 9B8-15.2 and 9B8-15.3 shall be cross-connectedat each storey with the discharge stack above thelevel of the highest branch discharge pipe connectionto the discharge stack.

(e) The discharge stack shall be continued upwards toform a stack vent.

(f) The radius of the centre line of any bend at the footof the discharge stack shall be not less than 300 mm.

(g) No offset shall be made in any discharge stack unlessa ventilating pipe is provided to reduce anypressure, which may be caused by any offset, and thenominal diameter of such ventilating pipe shall benot less than half the diameter of such dischargestack.

(h) Every waste fixture trap shall be either a 'P' trapwhich has a water seal of not less than 75 mm indepth or shall be a resealing trap of the 'P'type.The vertical distance between the invert of thelowest branch discharge pipe connected to anydischarge stack and the invert of the bend at thefoot of the stack shall be not less than -(I)450 mm for stub stacks, stacks in single

dwellings of up to three strays in height andstacks of up to two strays in height serving amaximum of two groups of sanitary fixtures;

(II) 750 mm for stacks of up to five storeys inheight in other buildings; and

(Ill) one story in height for stacks higher than fivestrays.

(I)Where any waste branch from a WC pan are connected toany discharge stack the center line of such wastebranch shall not intersect the center line of suchstack within 200 mm below the intersection of thecenter line of such soil branch with the center lineof such stack.

(1)The inlet of a branch discharge pipe or a fixturedischarge pipe joining a discharge stack of equaldiameter shall be swept in the direction of flow witha radius of not less than 50 mm or shall be at anangle of 450.

8B8-15.2 The following additional requirements shall apply withregard to any single stack installation in any buildingwhere the occupancy is of the residential class:(a) The fixture branch of any sanitary fixture in any

sanitary group shall be separately connected to thedischarge stack.

(b) Where the trap fitted to any washbasin has a nominaldiameter of 32 mm the internal diameter of thefixture branch serving such washbasin shall be notless than 40 mm .

(c) Not more than two sanitary groups installed in anyone storey shall be connected to the same dischargestack.

(d) A discharge stack of not more than two storeys inheight serving a maximum of two groups of sanitaryfixtures may discharge into a stub stack.

(e) The minimum discharge stack size and, where required,supplementary vent stack size and cross-ventilationrequirements shall be as prescribed in Table 10.

TABLE 10 - MINIMUM DISCHARGE STACK AND SUPPLEMENTARY VENT STACKSIZES AND REQUIREMENTS FOR SINGLE STACK SYSTEMS: RESIDENTIAL

OCCUPANCY

1 2 3

Number of StoreysServed by discharge

Stack

Nominaldiameter ofdischargestack, mm

Minimum nominal diameter of supplementary ventstack for discharge stack serving one or two

sanitary groups in each storey, with cross ventat each floor, mm

Up to 10 100 None11 to 15 100 50

150 None16 to 30 150 None

8B8-15.3 The following additional requirements shall apply withregard to any single stack Installation in any buildingwhere the occupancy is of the office class:

(a) Where sanitary fixtures are installed in ranges ascontemplated in column 2 of Table 11, the minimumnominal diameter of any discharge stack and of anysupplementary vent stack, where required, shall be asgiven in columns 3 and 4 respectively for the numberof storeys served by such discharge stack as given incolumn 1.

(b) Any soil or waste branch discharge pipe to which suchsanitary fixture referred to in paragraph (a) isconnected, shall be separately connectedto the discharge stack.

(c) For the purposes of Table 11 any number of urinalsnot exceeding 4 may be regarded as equal to one WCpan.

(d) Where a closed system is used and any branchdischarge pipe is connected to a stub stack, suchclosed system shall not receive the discharge frommore than four sanitary fixtures in a range.

TABLE 11 MINIMUM DISCHARGE STACK AND SUPPLEMENTARY VENT STACKSIZES AND REQUIREMENTS FOR SINGLE STACK SYSTEMS: OFFICE OCCUPANCY

1 2 3 4Number ofstoreysServed byDischargestack

Maximum number ofsanitary fixtures in arange in each storey

Minimum nominaldiameter ofdischargestack, mm

Minimum nominaldiameter of

supplementary ventstack, mm

1-4 Not exceeding 5 WC pans

and washbasins

100

5-8

Not exceeding 2 WC pansand washbasins

Vent stack notrequired

3 WC pans and 3 washbasins

32

Exceeding 3 WC pans and3 washbasins but not exceeding 5 WC pans and5 washbasins

40

9-12

Not exceeding 2 WC pansand 2 washbasins

32

Exceeding 2 WC pans and2 washbasins but not exceeding 4 WC pans and4 washbasins

40

1-8 Not exceeding 5 WC pansand 5 washbasins

150

Vent stack notrequired

9-24 Exceeding 3 WC pans and3 washbasins, but not exceeding 5 WC pans and5 washbasins

75

NOTE: Where there are fewer washbasins than WC's in each storey the number of WC's shall determine the supplementary vent stack requirements.

8B8-15.4 The following requirements shall apply with regard to theone-pipe system (including the single stack system):

(a) Any soil pipe shall be connected to another soilpipe, a stack or directly to a drain;

(b) any waste pipe shall be connected to another wastepipe, a soil pipe, a stack, directly to a drain or toa gully which shall be connected to a drain;

(c) any waste or any soil fixture trap may have a commonventilating pipe.

8B8-16 SIZING OF DISCHARGE PIPES

8B8-16.1 The following requirements shall apply with regard to the sizing of any discharge pipe:

(a) The nominal diameter of any discharge pipe shall notbe less than the internal diameter of any pipe oroutlet of any sanitary fixture which discharges intoit: Provided that where the nominal diameter of anyhorizontal pipe in an offset is more than that of thedischarge stack which discharges into it, the nominaldiameter of such stack downstream of such off-set maybe less than that of such horizontal pipe.

b) The internal diameter of any soil pipe other than asoil pipe from any urinal shall be not less than 100mm .

(c) The internal diameter of any waste pipe shall be notless than 32 mm if it serves a washbasin, bidet ordrinking fountain and not less than 40 mm if suchpipe serves any other waste fixture.

(d) In the single stack system the internal diameter ofany waste pipe shall be not less than 40 mm.

(e) The hydraulic load carried by any discharge pipewhich has a nominal diameter given in column 1 ofTable 12 shall not exceed the number of fixture unitsgiven in columns 2, 3 or 4 as the case may be:Provided that where a horizontal pipe to which adischarge stack is connected is larger than suchstack, any bend connecting such horizontal pipe tosuch stack shall have a nominal diameter equal tothat of such horizontal pipe.

8B8-I6.2 For the purposes of Tables 12 and 13, any waste pipe whichhas a diameter of 100 mm or greater and any soil pipe shall, subject to the requirements contained in sub rule 9B8-I6.3, be deemed to be a drain from that point downstream of which the gradient of such pipe or of any drain to which it is connected does not again exceed 450 below the horizontal except where such pipe or drain is connected to any connecting sewer.

8B8-16.3 Where the diameter of any horizontal pipe at the base of adischarge stack is more than that of the drain to which itdischarges, such horizontal pipe shall have a length of not less than 2,5 m, measured from the centre line of suchdischarge stack, before it is reduced in diameter and connected to such drain.

TABLE 12 - MAXIMUM PERMISSIBLE DISCHARGE PIPE LOADINGS

1 2 3 4

Maximum loading (fixture units)

Nominalpipe

diametermm

Discharge

stacks

Fixture dischargepipes and branchdischarge pipes

Horizontal dischargepipes other than

pipes referred to incolumn 3

32405065

75100125

261884

1406802400

12518

29120350

13835

60280270

150 6000 760 2100

8B8-17 SIZING OF DRAINS

The following requirements shall apply with regard to thesizing of any drain:

(a) The nominal diameter of any drain shall not in any case be less than 100 mm.

(b) The hydraulic load carried by any drain which has a nominal diameter given in column 1 of Table 13 and a gradient given in columns 2 to 14, as the case may be, shall not exceed the number of fixture units given in such table for such diameter and gradient ofdrain.

(c) Where due to the slope of the ground any drain is required to be laid at a gradient steeper than 1 in 5the hydraulic load carried by the drain shall not exceed that given in column 2 in Table 13 for a gradient of 1 in 5.

TABLE 13 - MAXIMUM PERMISSIBLE DRAIN LOADS

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Nominal pipe diametr, mm

Maximum load (fixture units )

Drains having a gradient of

1 In 5 1 in 10 1 in 20 1 in40 1 in 66 1 in80 1 in100 1 in 120

1 in 150

1 in 200

1 in 300

1 in 400

1 in 500

100(110 OD}150(166 OD)200225250300375

12000

40000

75000105000

------

9000

27 000

56 00076 00100000

165000295000

6 400

19 000

40 00054 00072 0001170021000

4 500

13 500

28 50038 00051 00082 000148 000

3 650

11000

23000310004100067000

125000

3150(sp)9500

20000270003600058000

104000

2800(sp)8400

1800024000320005200093000

2550

7700

1650022000290004750085000

Np

6900

1500019500260004250076000

Np

6000

1300017000225003700066000

Np

Np

106001400018500300

54000

Np

Np

NpNp

160002600047000

Np

Np

NpNpNp

2350042000

np = not permitted.sp = special permission required from local authority.OD = nominal (outside) diameter for non-metallic pipes

8B8-18 PROTECTION OF WATER SEALS

8B8-18.1 The following requirements shall apply with regard to thepreservation of any water seal under working conditions:

(a) The water seal contained in the trap of any soil fixture shall subject to the requirements contained in sub rule 9B8-I5.1 be protected by a trap vent where the discharge from such soil fixture is conveyed by -(1)an unventilated branch drain or soil pipe which

has a fall exceeding 1,2 m within 300 mm of theoutlet of the fixture trap;

(ii) an unventilated soil pipe which receives thedischarge from any other soil fixture;

(iii) a discharge stack which receives at higherlevel the discharge from any other soilfixture; or

(iv) a soil branch which receives the discharge fromany other soil fixture: Provided that such trap ventmay be omitted in the case where a soil fixture discharges to a soil branch where -

(aa) the hydraulic load carried by such soilbranch does not exceed 50 fixture units;

(bb) such soil branch is served by a 100 mmdiameter back vent; and

(cc) not more than 16 soil branches dischargeinto the same discharge stack.

8B8-18.2 Without prejudice to the requirementscontained in sub rule 9B8-18.1 -

(a) in the case of any installation of the two-pipesystem the water seal in the trap of any wastefixture shall be protected by a trap vent unless aresealing trap is fitted to such fixture: Providedthat this requirement shall not apply to any singlebath, shower or sink which discharges independentlyinto a gully where such bath, shower or sink issituated within 2 m vertically above and 3 mhorizontally from such gully;

(b) in the case of any installation of the one-pipesystem the water seal in the trap of any wastefixture shall except in the case of the single stacksystem, be protected by a trap vent.

8B8-18.3 The water seal in the trap of any wastefixture which is required to be protected interms of sub rule 9B8-18.2 may as an alternative beprotected by a vent valve.

8B8-18.4 A ventilating pipe shall be provided for any

- (a) main drain or branch drain at a point not more

than 6 m from the head of such main drain or branch drain, as the case may be, where such head is deemed to be the center-line of the discharge stack or vertical discharge pipe to which such main drain or branch drain is connected:

Provided that such ventilating pipe shall not be required -

(I) For any branch drain where the length, measured along such branch drain from its head to the point of connection to any ventilated main drain, is not more than 6 m; or

(II) Where such main drain or branch drain is connected to a discharge stack having a stack vent.

(b) Soil branch which receives the discharge from only one sanitary fixture and which exceeds 6 m in length measured along such branch from the outlet of the trap of such fixture to the point of connection to any ventilated soil pipe;

(c) Waste pipe longer than 6 m measured along such pipe from the outlet of the trap of any waste fixture discharging to it, to the point of discharge of such pipe into any gully or in the case of the one-pipe system, to the point of connection of the waste pipe with any ventilated soil pipe or any ventilated drain: Provided that such vent pipe may be omitted where the diameter of such waste pipe, as referred toin column 1 of Table 12, is increased by one nominal pipe size and the length of such waste pipe is not more than 10 m;

(d) waste branch longer than 6 m measured along such branch from the outlet of the trap of any waste fixture discharging into it, to its point of con-nection to any ventilated waste pipe.

(e) Stub stack where -

(I) - The crown of any WC trap connected to such stack is more than 1,5 m above the invert of thebend at the base of any such stack;

(II) the topmost connection of a waste pipe to any such stack is more than 2 m above the invert of the bend at the base of any such stack;

(III) any such stack serves more than one group of sanitary fixtures; or

(iv) any such stack serves branch discharge pipes to which ranges of sanitary fixtures are connected.

8B8-19 SIZING OF VENTILATING PIPES

8B8-19.1 The following requirements shall apply with regard to the sizing of ventilating pipes:

(a) Any drain or branch drain or any part thereof carrying a hydraulic load of not more than 50fixture units shall have a ventilating pipe with a nominal diameter of not less than 40 mm .

(b) The diameter of any ventilating pipe shall be not less than that given in Table 14 for the relevant developed length of such pipe and the sum of the fixture units derived from any sanitary fixtures whose traps are ventilated, either directly or indirectly by such ventilating pipe.

(c) Any stack vent shall have a nominal diameter which isnot less than that of the discharge stack to which itis connected: Provided that any stack vent connected to the following types of discharge stack may have a nominal diameter less than that of any such dischargestack but shall not have a nominal diameter of less than 40 mm;(i)a stub stack, where a stack vent is required; and(ii) a discharge stack of two strays high serving a

maximum of two groups of sanitary fixtures.(d) Where any stack vent is connected to the top of any

discharge stack such connection shall be at a pointnot less than 150 mm above the flood level of thehighest positioned sanitary fixture in the drainageinstallation which discharges to such dischargestack: Provided that the nominal diameter of thestack vent connected to such discharge stack shall benot less than the nominal diameter of such dischargestack or not less than that required in terms ofparagraph (c), whichever is the greater.

8B8-I9.2 (a) The developed length of any branch vent shallbe measured from the point

of its connection to a vent stack or stack vent tothe furthest trap vent connected to such branch vent;

(b) the developed length of any back vent shall bemeasured from the point of Its connection to a ventstack or stack vent to the furthest point of itsconnection to any discharge pipe; and

(c) the developed length of any vent stack shall bemeasured from the open end of such vent stack or,where such vent stack is connected to a stack vent,from the open end of such stack vent to the furthesttrap vent served by it or its furthest point ofconnection to any discharge pipe, whichever is thegreater.

TABLE 14 - SIZE OF VENTIVTING PIPES

1 2 3 4 5 6 7 8 9 10 11 12 13Maximum

number offixtureunits

served byvent

261648841281901 0002 2003 8007 200

Minimum nominal diameter of ventilating pipe, mm32 40(0D

)40 50(0

D50 65 75(OD) 75 100

(110OD)

125

150a60OD)

200

Maximum developed length of ventilating pipe, m .

.9 30

95

5130975

5121157

51362775

7560511895

907524157

9657277

1777521

19557 22

2

*Minimum vent size, unlimited length.

8B8-20 INSTALLATION OF DISCHARGE PIPES AND VENTILATING PIPES

8B8-20.1 Any discharge pipe or ventilating pipe shall -(a) not cause electrolytic corrosion due to any

association of dissimilar metals;(b) not be deformed in any way that would restrict flow;(c) be so installed that any bend does not form an acute

angle and has the largest practicable radius ofcurvature with no change in the cross-section of thepipe throughout such bend;

(d) be safely supported at intervals along its lengthwithout restraining thermal movement;

(e) be so installed that the gradients, whereapplicable, are within the limits given in Table 15;

(f) be so installed as to be capable of withstanding thetest referred to in rule 9B8-27; and

(g) have means of access for internal cleaning.

8B8-20.2 (a) (I) Where any discharge pipe islocated within any building and it is

desired that such pipe be enclosed it shall beenclosed within a duct: Provided that any part ofsuch pipe may be built into brickwork or concretewhere the interior of such part is renderedreadily accessible for cleaning.

(II) Such duct shall either be of a size andshape that any person can readily enter it andwork therein or shall be provided with coversthat can be readily removed to enable access tobe gained to all junctions, bends and cleaningeyes.

(III) Where in any room contemplated in sub-rule9B8-21.1(c) such duct is installed there shall beprovided inside such duct a means which in theevent of any leak from any pipe therein willdirect any released liquid or matter from thearea of such room to a point of discharge whereIt shall be readily detectable.

(b) Any pipe shall be so installed that the removal of any part of a building for the purpose of gaining access to such pipe will not endanger the structuralstability of such building.

TABLE 15 - LIMITING GRADIENTS OF DISCHARGE PIPES

1 2 3 4 5

Waste branches soil branchesHorizontalpipes otherthan branchdischarge

pipesSingle stack

systemVentilatedone- or two-pipe system

WC pan Other soilfixtures

All Systems

Min. Max* Min. Max Min. Max. Min. Max. Min. Max.1,250

(1/46)

50

(1/11,5)

1,250

(1/46)

50

(1/11,5)

50

(1/11,5}

140

(1/4)

2,50

(1/23)

50

(1/11,5)

2,50

(1/23)

450

(1/1)

*The maximum gradient of a waste pipe serving one or more washbasins only shall be 2,50 (1/23).

8B8-20.3 Any discharge pipe or any ventilating pipe shall beadequately protected against damage from vehicular impact.

8B8-20.4 Any ventilating pipe shall -(a) be carried upwards without any reduction in diameter

and shall throughout its length be horizontal or sograded as to provide a continuous fall from its openend back to the discharge pipe or drain to which itis connected;

(b) be so installed that its open end is -(I)not less than 2.5 m above finished ground level;(II) not less than 100 mm above the closest part of

the roof covering of the building through whichit passes or to which it is attached;

(IlI) not less than 2 ' m above the head of any window, door or other opening in the same building or any other building, whether on the same site or not, within a horizontal distance of 5 m of the said open end; and

(iv) not less than 2.5 m above the surface level ofany roof slab covering the building which it

serves where the slab may at any time be oc-cupied by human beings;

8B8-20.5 Any trap vent shall be connected to the crown of thefixture discharge pipe on the outlet side of the protectedtrap at a point not less than 75 mm or not more than 750 mmfrom the crown of such trap and such trap vent shall,unless carried up independently, be connected to anotherventilating pipe at a point not less than 150 mm above theflood-level of the sanitary fixture which such trap ventserves.

8B8-20.6 Where a two-pipe system is installed any ventilating pipeserving any soil pipe or any soil fixture shall not beconnected to any ventilating pipe serving any waste pipe orwaste fixture.

8B8-20.7 Where any supplementary vent stack is installed in additionto and adjacent to any discharge stack, such vent stackshall be connected to such discharge stack at a point belowthe lowest branch discharge pipe connection to suchdischarge stack and continued upwards, either independentlyor interconnected with such discharge stack, as prescribedin sub rule 9B8-19.1(d).

8B8-20.8 The Interconnection between any ventilating pipe and anydischarge pipe or drain shall be so located and made thatno soil water or waste water can under any circumstances bedischarged through any ventilating pipe.

8B8-21 ACCESS TO DRAINAGE INSTALLATION

8B8-21.1 The following requirements shall apply with regard to theaccess to any drain:

(a) Any drainage installation shall be so designed andconstructed as to permit adequate access to theinterior of any pipe in such installation for thepurposes of inspection, testing and internalcleaning.

(b) Where any discharge pipe enters the ground, adequatemeans of access to the interior of such pipe shall beprovided within 2 m above the point of such entry.

(c) Where any drain or discharge pipe passes through aroom which is used as a kitchen, pantry or for thepreparation, handling, storage or sale of any foodthe means of access to such drain or pipe, forcleaning purposes, shall be situated outside suchroom: Provided that this requirement shall not applyin the case of the waste pipe serving any wastefixture contained in such room.

(d) Any access opening to a drain or discharge pipeinstalled within any building shall be covered by anadequately screwed or bolted airtight cover.

(e) A rodding eye shall be installed -(I)where there is a change in direction of the drain

that exceeds 450: Provided that where any bendwhich has a centre line radius of not less than600 mm is installed such rodding eye may beomitted for not more than two such changes of upto 900 each between any two rod ding eyes requiredin terms of paragraphs (e) (11), (111) and (iv);

(ii) at any point within 1,5 m of the connection ofthe drain to a connecting sewer, septic tank orconservancy tank: Provided that an inspectioneye shall be installed immediately downstream ofsuch point;

(iii) at the highest point of the drain; and

(iv) at such intervals along the drain that no rodding distance is more than 25 m measured alongthe line of such drain from a rod ding eye orother permanent means of access to such drain;

(f) Such rodding eye shall -(i)join the drain in the direction of flow at an

angle of not more than 450, be continued up toground level and be adequately supported;

and(ii) be adequately marked and protected.

8B8-21.2 The access contemplated in sub rule 9B8-21.1 may subjectto the requirements contained in sub rule 9B8-21.7 beprovided by the installation of an inspection chamber ormanhole.

8B8-21.3 Any permanent access, contemplated in this rule, which iscovered by any paved area of ground shall be covered by anadequate and appropriately marked removable device.

8B8-21.4 Where any part of a drainage installation passes under abuilding there shall be -

(a) access provided to such installation outside of andas near as possible to such building at each pointof entry to or exit from under such building; and

(b) no access provided from within such building.

8B8-21.5 The lid covering any opening which gives access into anydrainage installation shall be so sealed that such lidwill remain effective under any working conditions.

8B8-21.6 Any means, other than a manhole or inspection chamber, provided for access to any drainage installation shall -

(a) have a removable cover and be so designed and constructed that it will sustain any normal load which may be imposed upon it and exclude the ingress or egress of water;

(b) be of such size and shape as to permit ready access to such installation for the purposes of inspecting, testing or cleaning, as the case may be; and

(c) when within any building, be so constructed as to be watertight when subjected to a maximum internal waterpressure-of 50 kPa

8B8-21.7 (a) Any manhole or inspection chamber shall be -

(I)located in an open air space;(II) so constructed and covered to prevent the ingress

of water; and (Ill) of sufficient strength to

sustain any load which may normally be imposedupon it.

(b) Any inspection chamber shall have a minimum plandimension of not less than 450 mm .

8B8-21.8 Where the connection between two sections of any drain areat different levels which necessitate a steep fall, thechange in level shall be effected by one or more 22,5 0bends which shall be connected to the shortest possiblelength of drain pipe connected in turn through one or more22,5 0 bends to the lower drain.

8B8-22 PROVISION OF TRAPS

8B8-22.1 Any sanitary fixture shall be provided integrally orimmediately at its outlet with an effective self-cleaningtrap except where such fixture is a bath, washbasin orshower which discharges into -

(a) an open channel which shall -(I)be made of impervious material;(ii) have a semi-circular cross-section of diameter

not less than 100 mm;(iii) be accessible for cleaning throughout its length;(iv) be fixed immediately beneath the point of

discharge; and(v)discharge into a gully; or

(b) an open channel serving a urinal where such bath,washbasin or shower is installed in the same room assuch urinal.

8B8-22.2 Any trap which is integral with a sanitaryfixture shall -

(a) have a smooth waterway; and(b) be so constructed that any change from one cross-

section to another does not cause an obstruction tothe passage of solids.

8B8-22.3 Any trap that is not integral with a sanitaryfixture shall be made of non-

absorbent and corrosion resistant material and shallbe so constructed that -

(a) it has a smooth waterway;(b) there is no constriction; (c) it has an outlet diameter which Is not less than that

of its inlet; and(d) it has at its lowest point a means of access for

cleaning:Provided that this requirement shall not apply where thetrap is made of rubber or other similar material.

8B8-22.4 The minimum nominal diameter of a trap connected to anySanitary fixtures, and the minimum depth of its water sealshall be in accordance with those values given for therelevant fixture and installation in Table 16: Provided that

the maximum depth of the water seal contained in any trapshall be 100 mm.

8B8-22.6 Where any trap serving any WC pan is provided with a venthorn, such horn shall have a nominal diameter of not lessthan 40 mm and shall be located at the side of and not lessthan 75 mm from the crown of such trap on its outlet side.

TABLE 16 - MINIMUM DIAMETER AND WATER SEAL DEPTH OF TRAPS

1 2 3 4Type oftrap

Type of sanitaryFixture

Type ofinstallation

Minimumnominal

diameter,Mm

Minimumdepth ofwater

seal, mmIntegral WC pan , hospital

soil fixture Wall-mounted urinal

All 7550

5050

Non-integral

Bide, drinking fountain, washbasin, wall-mounted

Two-pipe system 32 40One-pipe system 32 40Single stack

system40 40

Bath, shower, sink (hospital, kitchen or laboratory type),laundry trough, clothes-washing machine, dish-washing machine, food waste disposal unit (all of the domestic type, sanitary towel disposer

Two pipe system 40 40

One-pipe system 65 65Single stack

system40 75

Clothes-washing machine, dish-washing machine, food waste

All 50 75

disposal unit, floor drain (all of commercial type)Urinal of slab orstall type up to 3 units or 1,8m in length

All 50 50

Urinal of slab orstall type (all other), gully

All 75 50

8B8-23 PROVISION OF GULLIES

8B8-23.1 Subject to the requirements contained in sub rules 9B8-23.2, 9B8-23.3 and 9B8-23.4, any 'drainage installation shall be provided with one gully.

(a) The head of any such gully shall consist of -(I)an overflow fitting covered with a removable cover

which fits over the gully head and that permits overflow through a cross-sectional area not less than that of the trap of such gully, but that prevents the ingress of foreign matter directly from above; or

(ii) a hopper covered with a removable grating set in the gully head and the spaces between the bars ofsuch grating shall be not less than 10 mm or morethan 12 mm wide and shall provide an effective open area through such bars not less than the minimum cross-sectional area of the trap of such gully: Provided that such gully head may be dished, in which case the overflow level of such dish shall be not less than 75 mm above the levelof the grating of such gully.

(b) The overflow level of any such gully shall be not less than -

(i)150 mm below the crown of the lowest trap serving any sanitary fixture in such installation: Providedthat this requirement shall not apply to any sanitary fixture where its discharge is raised;

(ii) 150 mm above the surrounding ground or 50 mmabove any permanent surrounding paving and such paving shall ensure drainage away from such gully.

(c) The following requirements shall apply with regard tothe trap of any such gully:(i)The nominal diameter equivalent to its minimum

cross-sectional area and the depth of its water seal shall be in accordance with the requirementscontained in sub rule 9B8-22.4;

(ii) the surface level of the water in such gully shall be not more than 500 mm below the overflowlevel of such gully where such gully is a dishedgully; and

(iii) the water seal in such gully shall be maintained by means of at least one waste pipe which discharges into such gully.

8B8-23.2 A trapped floor drain may be installed within any building as a waste water outlet in any floor which shall slope at agradient of not less than 1 in 200 from all sides towards any such floor drain: Provided that any such floor drain shall -

(a) be so located that it is accessible;(b) be made of non-absorbent and corrosion resistant

material:(c) have a minimum outlet diameter and a trap seal depth

as contemplated in sub rule 9B8-22.4;(d) be provided with a removable grating, the open area

of which shall be not less than two-thirds of the area of the waste pipe into which such outlet discharges; and

(e) have its water seal maintained by means of --(i)a tap situated above it; or(ii) a waste fixture located in the same room, the

outlet of which will discharge waste waterdirectly into the gully above the level of thewater seal in such a manner as not to overflowonto the floor.

8B8-23.3 (a) A suitable grease trap shall be provided totake the discharge of waste

water from any sink or other fixture -(i)in any building where waste water is to be

discharged to a french drain; and (ii) where the discharge of grease,

oil or fat may cause an obstruction to the flowin any drain or sewer or may interfere with theefficient operation of any sewage disposal system.

(b) Any such grease trap shall be designed andconstructed to have a removable lid or a manholecover which shall permit the effective removal ofgrease, oil, fat or solid matter.

(c) No person shall permit any accumulation of grease,fat, oil or solid matter in any grease trap tank orchamber, which will prevent the effective operationof such grease trap tank or chamber.

8B8-23.4 Any paved area upon which petrol or oil or wash-watercontaminated with petrol or oil may fall shall be gradedand drained to a gully which shall discharge into asuitable petrol and oil interceptor trap which shalldischarge into a drain.

8B8-23.5 The surface level of the water in any gully trap shall benot more than 500 mm below the top of a dished gullyexcept that where it is impracticable so to comply thegully trap shall be located in a manhole which shall haveits walls brought up to a height of not less than 150 mmabove the surrounding ground and the access to suchmanhole shall be covered with a metal grating of such astrength as to sustain any load which may normally beimposed upon it.

8B8-23.6 Any waste pipe which discharges into any gully shalldischarge at a point above the surface of the water sealof the gully trap but not more than 100 mm above the levelof the grating.

8B8-23.7 Any gully shall be situated outside the building or besituated in any place which is permanently open to theexternal air and shall in either case be accessible forcleaning and maintenance: Provided that a gully may beinstalled within a building as a waste water outlet in afloor and be so located that it is easily accessible andsuch floor shall slope at a gradient of not less than 1 in200 from all sides towards such gully.

8B8-23.8 The outlet contemplated in subrule 9B8-23.7 shall be madeof non-absorbent and corrosion resistant material andshall have a minimum diameter of 50 mm.

8B8-24 INSTALLATION OF DRAINS

8B8-24.1 Where any drain is constructed adjacent to or under orthrough a structural part of any building adequatemeasures shall be taken to ensure that the trench in whichsuch drain is laid in no way impairs the stability of suchbuilding or the stability of any other building orinterferes with or affects any existing services.

8B8-24.2 Where any portion of any drain passes under any buildingsuch portion shall -

(a) be protected against the transmission of any load toit;

(b) be laid without change of direction or gradient;(c) not be provided with any means of access for

cleaning from inside such building.

8B8-24.3 Where any portion of a drain passes through abuilding such portion shall be -

(a) supported throughout its length without restrictingthermal movement and such support shall be securelyattached to the building; and

(b) so placed that any junction, bend or any point ofaccess into it is readily accessible.

8B8-24.4 Any drain shall - (a) be laid in a straight line between any points where

changes of direction -,or-gradient occur; and(b) be laid with approved flexible joints which will

permit joint movement to take place throughout thelife of the drainage installation, withstand rootpenetration and not deteriorate when in contact withsewage or water and will not cause any obstruction inthe interior of such drain;

(c) be laid at a gradient, suitable for the hydraulicload to be carried by such drain, as given in Table13; and

(d) where its gradient may exceed 1 in 5 anchor blocksshall be provided to securely fix such drain inplace.

8B8-24.5 Any drain shall have -(a) soil cover over the outside of the drain of not less

than 300 mm; or

(b) precast or cast-in-situ concrete slabs placed over such drain, isolated from the crown of the pipe by asoil cushion not less than 100 mm thick and such slabs shall be wide enough and strong enough to prevent excessive superimposed loads being transferred directly to the pipes.

8B8-24.6 Where any drain has a branch drain connected to it such connection shall -

(a) be by means of a junction fitting which shall not bea saddle junction;

(b) enable the flow from such branch drain to enter the drain obliquely in the direction of flow so that theincluded angle between the axes of the two drains does not exceed 450.

8B8-25 COMMON DRAINS

Drainage installations on any two or more sites, whether such sites are in the same ownership or not, may be permitted to discharge into a connecting sewerthrough a common drain.

8B8-26, TEST FOR DRAINS

After any drainage installation has been completed and back-filled the drains shall be tested as follows:

(a) An air test conducted by pumping air into suchdrains under a pressure of not less than 0.35 kPa(35 mm head of water) shall be performed.

(b) Such drains shall be deemed to have passed such testif the pressure after 3 minutes is not less than0.25 kPa (25 mm head of water).

8B8-27 TESTS FOR DISCHARGE PIPES AND VENTILATING PIPES

After any drainage installation has been completed thedischarge pipes and ventilating pipes shall be tested asfollows -

(a) All traps shall be filled with water;(b) the outlets of all ventilating pipes shall be

plugged;(c) the air test given in rule 9B8-26 shall be applied

and the criterion for passing the test shall apply.

9B8-28 IN-SITU PERCOLATION TEST FOR SOILS

8B8-28.1 For the purpose of establishing the suitability of anysoil in which a french drain is to be constructed thefollowing test procedure and evaluation shall be carriedout.

8B8-28.2 (a) A test hole or, where necessary, a number of holesuniformly spaced shall

be excavated on such site to a depth estimated forthe proposed french rain.

(b) The bottom 350 mm of such hole shall have a diameterof 300 mm or have a plan shape 300 mm square.

(c) The sides of such bottom part shall be roughened toprovide a natural infiltration surface.

(d) Any loose material shall be removed from the bottom of such hole and shall be replaced with a 50 mm thick layer of gravel to prevent scouring when such hole is filled with water.

8B8-28.3 (a) Such hole or holes shall be filled with water to a height of not less than

300 mm above such gravel and maintained at such a level for a period of not less than 4 hours.

(b) At the end of the period contemplated in paragraph (a) the level of the water in such hole or holes shall be marked and the time noted.

(c) The drop in level of such water as it soaks away overa subsequent period of 30 minutes shall be measured: Provided that if all the water percolates away beforesuch 30 minutes, the actual time taken -for this to occur shall be measured.

(d) The percolation rate shall be reported as the time taken for such water level to drop 25 mm: Provided that where a number of holes are tested the average percolation rate for the site shall be calculated andsuch average shall be used as the percolation rate for the French drain effluent.

8B8-28.4 Where such percolation rate is less than 30 minutes thesoil on the site shall be deemed suitable for theconstruction and use of a French drain.

8C NON-WATER-BORNE MEANS OF SANITARY DISPOSAL8C1 MEANS OF DISPOSAL

Where water-borne sewage disposal is not available othermeans of sewage disposal shall be permitted by the localauthority: Provided that in the case of chemical or pailclosets a satisfactory means is available for the removaland disposal of sewage from such closets.

8C2 PERMISSION

No person shall construct any pit latrine without thepermission of the local authority.

8C3 CONSTRUCTION, SITING AND ACCESS

(1) Any such other means of sewage disposal shall be soconstructed, sited and provided with access that thehealth and convenience of persons using such meansshall not be adversely affected.

(2) The number of sanitary receptacles shall be adequatefor the population of the building served by suchreceptacles.

8C4. DEEMED - TO - SATISFY REQUIRMENTS

The requirements of the regulation 9C shall be deemed tobe satisfied with part 9C of the NBCE 000- 2004.

DEEMED- TO- SATISFY RULES

8C4-1 GENERALThe regulations contained in Part 9C of the National Building Code of Ethiopia shall be deemed to be satisfied where the means of sewage disposal used complies with

deemed-to-satisfy rules contained in the following provisions of this Part.

8C4-2 CONSTRUCTION

8C4-2.1 Any closet shall be constructed with a floor, walls and a roof of material adequate for its purpose and such closet shall be provided with a door or other means which will ensure privacy of the occupant of such closet.

8C4-2.2 Any closet shall be provided with an opening whichwill give natural lighting and ventilation and the area ofsuch opening shall be not less than 0.2 m2 .

8C4-2.3 Any pan, pail or container and any other fittingrelated thereto shall be adequate for the purpose for whichit is to be used.

8C4-2.4 (a) Any closet shall be provided with a seat and ariser of such height that

a space of not more than 25 mm is left between the underside of suchseat and the top of the receptacle; and

(b) the aperture in such seat shall be at least 25 mmless in every diameter than the correspondingdiameter of the top of such receptacle and suchaperture shall be fitted with a self-closing fly-proof lid.

8C4-2.5 For the purpose of guiding any pail into its centralposition beneath the aperture in such seat, guides shallbe provided either in the floor of the closet or on theunderside of such seat.

8C4-3 SITING

8C4-3.1 No excavation for a pit latrine shall be sited within 2 mof any building or of any boundary of the site on which itis located.

8C4-3.2 Where any excavation for a pit latrine is positionedoutside the closet so that excreta is delivered into it

from a chute fitted under the closet seat such excavationshall be adequately covered over.

8C4-3.3 Where any closet, other than a chemical closet, forms partof any dwelling house such closet shall be so positionedand constructed as to prevent the transmission of odors tothe rest of such house.

8C4-3.4 No closet, other than a chemical closet, shall opendirectly into any habitable room.

8C4-3.5 Any closet which is not a chemical closet shall havedirect access from the open air or from a permanentlyventilated space.

8C4-3.6 Any closet which contains a removable pail shall beprovided with access to such pail for replacement purposesso that the pail is not carried out through the doorway ofsuch closet and such access shall be provided with a self-closing fly proof lid.

8D STORMWATER DISPOSAL

8D1 STORMWATER DISPOSAL REQUIREMENT

(1) The owner of any site shall provide suitable meansfor the control and disposal of accumulated stormwater, which may run off from any earthworks, buildingor pavement.

(2) Such means of storm water disposal may be in additionto or in combination with any drainage works required.

8D2 RAIN WATER DISPERSAL

1/ This Proclamation shall not be construed as requiring theinstallation in any building of any roof gutter or down pipewhere other suitable means has been provided to ensure thedispersal or dispersal away from such building of rainwaterfrom the roof of such building.

2/ This Proclamation shall not apply to any site usedexclusively for the erection of any dwelling house or anybuilding apartment thereto: provided that where, due tospecial site features, the discharge of storm water from suchsite may cause significant damage, the Local Authority mayrequire compliance with this Proclamation.

3/ The owner of any site shall provide suitable means to absorbpart of the run off water with in the site. Details shall bespecified by regulation.

8D3. DEEMED - TO - SATISFY REQUIRMENTS

The requirements of the regulation 9D shall be deemed to be satisfied with part 9D of the NBCE 000- 2004.


8D3-1 GENERAL

The regulations contained in Part 9D of the National BuildingCode of Ethiopia shall be deemed to be satisfied where themeans of storm water disposal complies with deemed-to-satisfyrules contained in the following provisions of this Part.

8D3-2 STORM WATER DISPOSAL

Any means of storm water disposal on any site shall include-

(a) in the case of any building on such site, roofvalleys and gutters and down pipes or, where guttersand down pipes have not been provided, other means ofensuring that storm water from any roof is controlledand will flow away from such building; and

(b) any surface storm water drains, channels or below-ground storm water drains that may be necessary toconvey storm water away from such site or from onepart to another part of such site.

8D3-3 VALLEYS AND GUTTERS

8D3-3.1 Any valley or gutter shall have a cross-sectional area of not less than that given in Table 1, for the rainfall region in question.

TABLE 1 ROOF VALLEY AND GUTTER SIZES

1 2

Internal cross-sectional areaRainfall region of valley or gutter per ml

of roof plan area served

Summer 140 mm2

Year-round .115 mm2

Winter 80 mm2

8D3-3.2 Such requirements in respect of any down pipe shall be deemed to be satisfied where the internal cross-sectional

area of such down pipe is not less than l00 mm2 per 1 m2 ofroof plan area served by such down pipe: Provided that such internal cross-sectional area is not less than 5000 mm2.

8D3-4 ACCESS TO STORMWATER DRAINS

On any storm-water drain ready means of access shall be installed at such intervals that no part of such drain, measured along the line of such drain, is more than 40 m from such means of access.

8D3-5 CONNECTION TO STORMWATER SEWER

Where any storm water sewer is available in any street or servitude abutting any site to be provided with storm water drainage, the owner of such site shall, if so required by the local authority, at his own cost install one or more storm water drains to be connected by the local authority to such storm water sewer.

8D3-6 USE OF STREET SURFACE DRAINAGE SYSTEM

Where the local authority considers the capacity of any street surface drainage system to be adequate to accept the discharge of storm water from any site it may permit such storm water so to discharge: Provided that the owner of such site shall, where so required by the local authority, at his own cost provide one or more conduits toconvey such storm water to such street surface drainage system.

8E1 PROVISION OF AREAS

Any building, excluding a dwelling house, in which refuse is orwill be generated shall be provided with an adequate storagearea for refuse containers

8E2 ACCESS TO AREAS

8E. REFUSE DISPOSAL

The location of any area contemplated in Article 69 shall besuch that access thereto from any street for the purpose ofremoving the refuse, is to the satisfaction of the LocalAuthority.

8E3 REFUSE CHUTES

Where any refuse container receives refuse from any chute suchchute shall be designed and erected so as to be safe inoperation.

8E4 DEEMED - TO - SATISFY REQUIREMENTS

The requirements of the regulation 9E shall be deemed tosatisfied with part 9E of the NBCE 000 - 2004

8E4 - 1 The storage facilities shall be:

(a) large enough and designed on the basis of thequantity of refuse generated and the frequency of removal,

(b) designed and sited so as not to present a healthrisk,

(c) sited so as to be accessible for filling andemptying.

8E4 - 2 The capacity of refuse storage facilities, location ofthe facilities, and the frequency of removal for all types ofbuildings shall be in accordance withstandards set by the Authority.

8E3 - 3 Multi-storey buildings of more than five storeys shall beprovided with refuse chutes. Such chutes shall have:

(a) a minimum cross-sectional area of not less than 0.2m2 with smooth and non-absorbent inner surfaces,

(b) non-combustible and sound-proof material andconstruction,

(c) close-fitting access hoppers at each storey.


(d) Ventilation at top and bottom.

8E4 - 4 Where refuse is disposed on site by incineration,the incinerator shall:

(a) have adequate size (burning chamber and chimney) forthe volume of refuse to be incinerated,

(b) be constructed of appropriate materials

(c) be conveniently located so as not to present a healthrisk.

9 FIRE PROTECTION AND INSTALLATION

9A. FIRE PROTECTION

9AI GENERAL REQUIREMENTAny building shall be so designed, constructed and equipped thatin case of fire-

1. the protection of occupants or users therein isensured and that provision is made for the safe evacuationof such occupants or users;

2. the spread and intensity of such fire within suchbuilding and the spread of fire to any other building willbe minimized

3. sufficient stability will be retained to ensure thatsuch building will not endanger any other building:Provided that in the case of any multi-storey building nomajor failure of the structural system shall occur,

4. the generation and spread of smoke will be minimizedor controlled to the greatest extent reasonablypracticable; and

5. adequate means of access, and equipment fordetecting, fighting, controlling and extinguishing suchfire, is provided.

9A2. DEEMED - TO - SATISFY REQUIRMENTSThe requirements of the regulation 10A shall be deemed to be satisfied with part 10A of the NBCE 000- 2004.


9A2-1 GENERAL

The requirements of regulation 10A shall be deemed to be satisfied where any building is designed, constructed and equipped in accordance with deemed-to-satisfy rules contained in the following provisions of this Part.

9A2-2 SAFETY DISTANCES

9A2-2-1 The external walls of any building shall be classified as one of the following types:

(a) Type F, which has a fire resistance equal to or morethan that given in Table 1 for the occupancy inquestion;

(b) Type F, which has a fire resistance of less than thatgiven in Table 1, but when tested in accordance withstandard procedures, satisfies the requirements forstability and integrity for a period of not less thanthat given in Table 1 for the occupancy in questionand such wall is constructed with non-combustibleexternal cladding; or

(c) Type N, which has a fire resistance of less than thatgiven in Table 1 for the occupancy in question andhas -(1) Combustible external cladding; or(11) Noncombustible external cladding but such wall,

when tested in accordance with standard procedures, has failed to satisfy the require-ments for either stability or integrity, or both, for the period given in Table 1 for the occupancy in question.

TABLE 1 - FIRERESISTANCE OF EXTERNAL WALLS

1 2

Occupancy Fire resistance, minutes

All occupancies exceptthose mentioned below

30

Bl, Cl, Dl, El, E2, E3, Fl,F3, J2 and J3

60

J1 120

9A2-2-2 Where any external wall of a building is of Type FR and such wall does not contain any window or any other opening there shall be no restriction upon the safety distance for such wall. Those having windows are subject to standard safety distance requirements.

9A2-3 DIFFERENT OCCUPANCIES IN A BUILDING

In any building there shall be permitted anarea of -

(a) not more than 100 M2 of an occupancy classified Jl ornot more than 300 M2 of an occupancy classified J2 orJ3, within any other occupancy;

(b) not more than 100 M2 of anoccupancy not classified Jl, within an occupancy soclassified.

9A2-4 DIVISION AREAS

Any building shall be divided into divisions of an area, and such divisions shall be separated effectively from each other by division separating elements: Provided that :-

(a) where an occupancy classified Jl, used for the storage of flammable

liquids, forms part of any building, such part shallbe a separate division and the area of such divisionshall be not more than 100 m2;

b) where storage of goods is to a height of more than 3m in any occupancy classified Jl or J2, an approvedfixed installation of automatic fire extinguishmentsshall be provided.

9A2-5 FIRE PERFORMANCE: GENERAL

9A2-5-1 Where any element or component of a building is required to have a particularfire resistance such requirement shall, in respect of the materials or method of construction of such element, or component, be deemed to have been satisfied where -

(a) such materials or methods are in accordance with theparticulars set out in the Tables contained in rule10-21-1

9A2-6 FIRE RESISTANCE OF OCCUPANCY AND DIVISION SEPARATING ELEMENTS

9A2-6-1 Any portion of a building having an occupancy in anyone of the groups of occupancies (a) to (g) contemplatedbelow shall, subject to the requirements contained in rule10A2-3 be separated by means of and occupancy separatingelement from any portion of such building used for anoccupancy in any other of such groups of occupancies.

(a) A1, A2,A3, A4, C1, C2(b) A5(c) B1, D1(d) B2, B3, D2, D3, D4, F1, F2, F3, G1,

J2,J3,J4(e) E1,E2,E3(f) H1,H2, H3(g) Ja

9A2-6-2 (a) Where any occupancy-separating element is required in terms of

sub rule 10A2-6-1 such occupancy separating element shall have a fire 7-r,esistance not less than that given in Column 2 of Table 4.

(b) Where, in terms of rule 10A2-4 a division separating element is required, such division separating element shall have a fire resistance of not less than the relevant figure given in column 2 of Table 4.

TABLE 2 - FIRE RESISTANCE OF OCCUPANCY AND DIVISION SEPARATING ELEMENTS

1 2

Occupancy Fireresistance,

minutes

All occupancies other than 60 those referred to below

Bl, Cl, Dl, El, E2, 120 E3, Fl, F3, Jl

9A2-7 FIRE STABILITY OF STRUCTURAL ELEMENTS OR COMPONENTS

(a) Any structural element or component directlysupporting a separating element contemplated in rule10A26 shall satisfy the requirement for stabilityfor a period not less than that required for fireresistance of such separating element.

(b) No unprotected steel shall be permitted in thestructure in any basement.

(c) Notwithstanding the requirements containedin paragraph (b) it shall be permissible forstructural components to be of -(I) unprotected steel -(aa) in any single storey building;

(bb) in any double story building where the occupancyis classified A3, A4, A5, B2, B3, C2, D2, D3, D4, Gl,H4, J2. J3 or J4;

(cc) in the top storey of anybuilding where the floor of such top story is aconcrete slab and such building does not exceed15 m in height and is of an occupancy classifiedB3, D3, D4, Gl, J3 or J4;

(II) timber construction complying with EBCS- thathas a fire resistance of not less than 30 minuteswhere the occupancy of the building is classifiedGl, H3 or H4: Provided that in the case of anysuch occupancy the timber construction shall notexceed two storeys in height.

(d) Any perforated floor type or any mezzanine floor less than 100 M2 in area shall not be considered to be a structural element or component.

TABLE 3 - STABILITY OF STRUCTURAL ELEMENTS OR COMPONENTS

1 2

3 4 5 6 7

Stability, minutes

Class Ocupancy of Double

3-10 11 Basment Building

Occupancy storey storey storey storeys In any

Building building building and over building

Entertainment and public assembly Al 30 60 120 120 120

Theatrical and indoor sporl A2 30 60 120 120 120

Places of instruction A3 30 30 90 120 120

Worship A4 30 60 90 120 120

Outdoor sporl A5 30 30 60 90 120

High risk commercial service Bl 60 60 120 180 120

Moderate risk commercial service B2 30 60 120 120 120

Low risk commercial service B3 30 30 90 120 120

Exhibition hall C1 60 90 120 120 120

Museum C2 30 60 90 120 120

High risk industrial DI 60 90 120 180 240

Moderate risk industrial D2 30 60 90 120 180

Low risk industrial D3 30 30 60 120 120

Plant room D4 30 30 60 90 120

Places of detention El 60 60 90 120 120

Hospital E2 60 90 120 180 120

Other institutional (residential) E3 60 60 120 180 120

Large shop Fl 60 90 120 180 120

Small shop F2 30 60120 180 120

wholesalers' store F3 60 60 120 120 120

Offices GI 30 30 60 120 120

Hotel Hl 30 6090 120 120Dormitory H2 30 30 60 120

120Domestic residence H3 30 30 60 120

120

High risk storage J1 60 90 120 180 240

Moderate risk storage J2 30 60 90 120 180

Low risk storage J3 30 30 90 90 120

Parking garage J4 30 30 60 90 120

NOTENA = Not applicable.

9A2-8 TENANCY SEPARATING ELEMENTS

Any separating element between tenancies where theoccupancy is classified Hl, H2 or H3 shall have a fireresistance of not less than 30 minutes.

9A2-9 PARTITION WALLS AND PARTITIONS

9A29-1 Any partition wall in any occupancy classified El, E2 orE3 shall have a fire resistance of not less than 60minutes and any such wall in any occupancy classified Gl,H2, H3 or H4 shall have a fire resistance of not less than20 minutes.

9A2-9-2 Any fire door or fire shutter shall be fitted with anapproved self-closing or automatic closing device.

9A2-10 ROOF ASSEMBLES AND COVERINGS

9A2-10-1 Where any combustible roof covering material includingthatch, shingles and bitumen zed felt on boarding is usedand the plan area of such roof is more than 20 M2, thedistance between the building so covered and any boundaryof the site on which such building is situated shall benot less than 4.5 m .

9A2-10-2 Any combustible waterproof membrane in contact with a concrete slab shall, for the purposes of this rule, be considered non-combustible.

9A2-10-3 (a) Where roof space is formed between any ceiling and any roof covering,

such space shall be divided by means of non-combustible fire-stops into areas of not more than300 M2 and the distance between such fire-stops shallbe not more than 30 m. Provided that this requirementshall not apply where such roof space and the roombelow are protected by a fixed automatic fire-fighting system.

(b) In the case of any occupancy classified H3 the walls separating dwelling unitsshall be extended and any such extension shall -(I) have the same fire resistance as the wall

supporting it;(II) be taken to the underside of any non-combustible

roof or roof covering or any concrete slab belowa combustible roof covering, as the case may be;and

(IlI) be taken to not less than 300 mm above anycombustible roof covering other than one laid onconcrete.

9A2-11 PROVISIONS OF ESCAPE ROUTES

9A2-11-1 One or more escape routes shall be provided in any building.

9A2-11-2 Where the travel distance, measured to the nearest escape door, is not more than 45 m, any such escape route -(a) (I) in any single-story building;

(II) in any dwelling unit having such escape door at ground level; or

(III) in and from any dwelling unit at first floor level where such dwelling unit is served by an individual stairway to ground level;

shall not be required to include any emergency route and, in the case of any dwelling unit contemplated in this sub rule,

(b) in any building of two or three storey in height shall not be required to include any emergency route: Provided that where such building is -(I) any building of two storeys in height where the

population of the upper storey is more than 25 persons; or

(II) any building of three storeys in height;

such building shall be provided with not less than two -such escape routes.

(c) in any building of a height of more. than three storeys shall be provided with not less than two such escape routes and -(I) an emergency route shall form part of each such

escape route;(II) any such emergency route shall include any

stairway forming part of the escape route and also that part of the escape route from the lower end of the stairway to any escape door.

9A2-11-3 Where, in any building, the travel distance measured to the nearest escape door is more than 45 m, not less than two such escape routes shall be provided and an emergency route shall form part of each such escape route.

9A2-12 EXIT DOORS

9A2-12-1 (a) Where the population of any room is not more than25 persons the width of any exit door shall be notless than 800 mm.

(b) Any classroom, lecture room or boardroom thathas a population of more than 50 persons or anyother room that has a population of more than 25persons shall have not less than two exit doors,and such doors -

(I) shall open In the direction of travel along theescape route; and

(II) shall have an aggregate width of not less thanthe required width for an escape route for suchpopulation, as contemplated in rule 10A2-12-2.

Provided that where such population is more than 240persons three or more exit doors, as may be required,shall be installed.

9A2-12-2 In any building the width of any escape route to beprovided in respect of any room, storey or portion thereofshall be not less than that given in Table 4 for thepopulation concerned: Provided that -

(a) no individual escape route shall be designed for apopulation of more than 190 persons;

(b) where there are two or more emergency routes one suchroute shall be discounted in determining the widthsrequired for the remainder.

TABLE 4 - WIDTH OF ESCAPE ROUTS

1 2

Maximum number Minimum width, of persons mm

120 1100130 1200140 1300150 1400160 1500170 1600180 1700190 1800

9A2-13 BASEMENTS

In any building not classified as D4 or H4 any storey belowthe ground storey shall be served by not fewer than two separate emergency route stairways: Provided that where such storey is used for the parking of motor vehicles one such emergency route stairway may be replaced by a motor vehicle ramp.

9A2-14 MARKINGS AND SIGNPOSTING

9A2-14-1 (a) Any building having emergency routes shallbe clearly marked and sign-posted to indicate thedirection to be traveled in the case of any emer-gency, and the size and positioning of the requiredmarks and signs shall be subject to any directiveissued by the local authority.

(b) The exit door of any room, which has a population ofless than 25 persons, shall not be required to be somarked.

(c) Where any room has more than one exit door, any suchdoor used for normal egress from such room shall notbe required to be so marked.

9A2-15 LIGHTING OF FEEDER AND EMERGENCY ROUTES

9A2-15-1 Any emergency route shall be provided with artificial lighting and at any time when the building containing suchroute is occupied there shall be a minimum luminance of 50lux on a horizontal plane 100 mm above the floor.

9A2-15-2 In any building having a population of more than 100 persons an adequate number of emergency light sources shall be installed in such emergency route and such light sources shall be connected to an approved emergency power supply which is -

(a) independent of the mains supply; and(b) capable, in the event of any failure of the lighting

contemplated in subrule 10A2-15-1 of providing powersupply to such emergency light sources for not lessthan 60 minutes.

9A2-16 FIRE DETECTION AND ALARM SYSTEMS

9A2-15-1 Any building containing an occupancy classified -(a) E2 or E3, irrespective of height or floor area;(b) Fl, with a floor area of more than 500 M2 or

(c) Hl or H2, with a height of more than 8 m; shallbe equipped with a fire detection system and an emergency evacuation communication system

9A2-16 PROVISION OF FIRE-FIGHTING EOUIPMENT

9A2-17-1 Any fire-fighting equipment in any building shall be so installed as to be ready at all times for its purpose.

9A2-17-2 The owner of any building shall keep available for inspection by the local authority a record of the maintenance of fire-fighting and protection equipment.

9A2-18 WATER RETICULATION FOR FIRE-FIGHTING PURPOSES

9A2-18-1 Any rational design of a fire installation shall make provision for water to be supplied in the quantity and at the pressure and rate of flow required by subrule 10B3-5-1.

9A2-19 HOSE REELS

9A2-19-1 Hose reels for the purposes of fire fighting shall be installed in any building of two or more storeys in heightor in any single-storey building of more than 250 M2 in floor area at a rate of 1 hose reel for every 500 M2 or part thereof of floor area of any storey: Provided that such hose reels shall not be required in any building classified H4 or in any dwelling unit in an occupancy classified H3 where such unit is provided with independentaccess to ground level.

9A2-19-2 Where a satisfactory water supply and pressure are notavailable, two fire extinguishers complying with therequirements contained in rule 10A2-20 shall be providedin place of each required hose reel.

9A2-20 HYDRANTS

9A2-21 Hydrants in positions subject to direction by the localauthority shall be provided in -

(a) any building exceeding 12 m in height; and(b) any occupancy classified Bl, B2, Cl, C2, DI, D2, El,

E2, E3, Fl, F3, Hl, JI,J2,J3orJ4 of any height and of a total floor area exceeding 1000 M2.

9A2-21 PORTABLE FIRE EXTINGUISHERS

9A2-21-1 Any building containing an occupancy given in Table 5 shall, for the relevant occupancy and floor area, be

provided with portable fire extinguishers, as prescribed insuch table, in approved positions.

TABLE 5 - PROVISION OF PORTABLE EXTINGUISHERS

1 2

Classification Number of portable fire

of -extinguishers relative

occupancies to floor area

Bl, Dl, D2 JI, J2, J3 1per 100 m2

Al, A2, A3, B2, Cl, C2, D3, El, E2 1 per 200 M2

E3, Fl,F2, F3, G1, Hl, H2

A4, A5, B3, D4, H3, J I per 400 M2

9A2-22 SMOKE CONTROL

9A2-22-1 Notwithstanding the requirements of sub rule 7A5-4(3) any room of which the floor area is more than 500 M2 shall be provided with -

(a) a system of mechanical smoke ventilation; or(b) roof ventilators or openable windows or panels to

permit smoke ventilation and such roof ventilatorsor openable windows or panels shall -

(I) have an aggregate area of not less than 3% ofthe floor area of such room or, in the case ofany-single storey building where such room hasan occupancy classified D2 or D3, not less than1.5% of the floor area of such room;

(II) be located in the roof or in the upper third ofthe walls, as the case may be, and bedistributed in such a way that smoke will beevenly extracted from all parts of the room;

(ill) be designed to open automatically whenactivated by heat or smoke detectors or, wherenot so designed, shall be capable of beingmanually operated, without the use of specialtools, from the floor of such room:

Provided that where such room is so situated thatneither a roof space nor an external wall of thebuilding form part of such room, such room shall beequipped with a system of mechanical smokeventilation.

9A2-23 SEATING ARRANGEMENTS IN AUDITORIUM OR HALLS AND ONGRANDSTANDS

9A2-23-1 In-any auditorium or hall or on any grandstand containingany seating -(a) the seating and any aisles serving such seating shall

be so arranged as to allow unobstructed movement tothe escape routes from such auditorium, hall orgrandstand;

(b) notwithstanding the requirements contained in rule10A2-11 no seat shall be more than 21 m from anescape door or an access door to an emergency routeas measured along the route which a person occupyingsuch seat may be expected to travel to arrive at suchescape door or access door.

9A2-24 ACCESS TO BUILDINGS FOR FIRE-FIGHTING AND RESCUE PURPOSES

9-21-1 No building shall be erected on any site unless such site is provided with suitable access for the purposes of fire-fighting in and rescue from such building by the Fire Services of the local authority.

9A2-24-1 PRESUMED FIRE RESISTANCE OF BUILDING MATERIALS AND COMPONENTS

The building materials and components contemplated in Table 6 and 7 of this rule shall be deemed to satisfy the performance requirements, under fire conditions, provided that such materials and components comply with the relevant detailed descriptions given in such tables.

TABLE 6 - STRUCTURAL WALLS: FIRE RESISTANCE

1 2 34 5 6 7

Minimum thickness (mm), excluding Construction plaster, for fire resistance of and materials 240 min 120 min 90 min 60 min 30 min 300min

Solid construction: Bricks of clay, Unflustered....... 190 110 90 90 90 90 Plastered........ 150 90 90 90 90 90

TABLE 7 - NON-STRUCTURAL WALLS AND PARTITIONS: FIRE RESISTANCE

1 2 3 4 5 6Constructionand materials Minimum thickness (mm), excluding

plaster, for fire resistance of

240 120 min

90 min 60 min 30 min

Sold construction:Pricks of clayUnplastered ………..Plastered………….

190150

11090

9090

9075

7575

Solid concrete units:

Class 1 aggregatesUnplastered………….

150 90 75 75 75

Class 2 aggregatesUnplastered ………… 215 150 90 75 75

9B. FIRE FIGHTING INSTALLATION

9B1 FIRE FIGHTING INSTALLATIONAny approved fire installation shall be connected to acommunication pipe supplied by the local authority: Providedthat such local authority may, subject to any conditions itmay consider necessary, allow such fire installation to beconnected to-

(a) Any approved alternative source of supply; or

(b) Any source of non – potable water, where such water is notto be used for domestic or any other purpose which, in theopinion of such local authority, might give rise to ahealth hazard.

9B2 SUPPLY OF WATER

Water shall not be taken from a supply system for use in anyfire installation, unless

(a) an application has been made to the local authority forthe supply of such water and such application has beengranted; and

(b) the use of such water and fire installation complies withany conditions imposed by the local authority.

9B3. DEEMED - TO - SATISFY REQUIRMENTS

The requirements of the regulation 10B shall be deemed to besatisfied with part 10B of the NBCE 000- 2004.


9B3 -1 GENERAL

The requirements of regulation 10B shall be deemed to besatisfied where any building is designed, constructed andequipped in accordance with deemed - tosatisfy rulescontained in the following provisions of this part.

9B3 - 2 COMMUNICATION PIPE

Any fire installation shall be connected to acommunication pipe provided by the local authority andlocated at a position and depth to be determined by suchlocal authority.

9B3-3 WATER METER

Where so required by the local authority provision shallbe made in any fire installation for the supply andinstallation by the local authority of a water meter.

9B3-4 ISOLATING VALVES

An isolating valve shall be fitted in any fireinstallation at a position not more than 1.5 m inside theboundary of the site.

9B3-5 FIRE INSTALLATIOONS

9B3-5-1 Any fire installation shall be so constructed as toprovide

(a) a quantity of water sufficient for the effectiveoperation of that number of hose reels, hydrants andsprinkler heads which may be operated or come intooperation simultaneously in any division.

(b) A flow pressure and flow rate at the control valveof any sprinkler system appropriate to the hazardrating of such system.

9B3-5-2 In any fire installation --

(a) the nominal diameter of(i) any communication pipe serving such

installation shall be not less than 75 mm.(ii) any pipe supplying water to any fire hydrant

shall be not less than 75 mm provided thatwhere the length of such pipe is more than 50mthe nominal diameter of such pipe and of thecommunication pipe to which the installation isconnected shall be not less than 100 mm.

9B3-5-3 Any fire installation equipped with manual pump startingmechanisms shall be kept constantly charged with water andshall at all times be under the supervision and control ofa person who is fully conversant with all the technicaldetails of the installation and its warning devices.

9B3-5-4 Any pump unit and its starting and driving mechanismsshall be installed in a ventilated compartment constructedto have a fire resistance rating of not less than 120minutes and where any such compartment is located at orbelow ground level, the entrance or other means of accessthereto shall about on a street, public place or an openarea on the site: Provided that where any such compartmentis located in any basement, the means of access there toshall be enclosed by walls having a fire resistance ratingof not less than 120 minutes and shall not be used as ameans of access to any other part of the building.

10. MISCELLANCOUS PROVISIONS

10A. FACILITIES FOR THE PHYSICALLY IMPAIRED PERSONS

10A1 GENERAL

(1) In any public building, there shall be a means of accesssuitable for use by physically impaired persons, includingthose who are obliged to use a wheelchair or who are ableto walk but who are unable to negotiate steps.

(2) Where toilet facilities are required in any building, anadequate number of such facilities shall be suitable foruse by physically impaired persons and shall be accessibleto such persons.

10A2. DEEMED - TO - SATISFY REQUIREMENTS

The requirements of the regulation 11A shall be deemed to be satisfied with part 11A of the NBCE 000- 2004.


10-A2-1 GENERAL

The requirements contained in regulation 11A of the National Building Regulations shall be deemed to be satisfied where the facilities provided for disabled persons comply with deemed-to-satisfy rules contained in the following provisions of this Part.

10-A2-2 RAMPS

Any ramp provided for the use of persons inwheelchairs shall -

(a) have a gradient, measured along the center line, ofnot more than -(i)1:12 where the difference in level of the ends of

the ramp is more than 400 mm; or(ii) 1:10, where such difference in level is not more

than 400 mm;(b) have a clear trafficable surface not less than 1.1 m

wide;

(c) have a surface constructed of a slip resistantmaterial;

(d) be provided with a landing for every 1.5 m ofvertical rise, and such landing shall be not lessthan 1.2 m in length and have a width of not lessthan the ramp;

(e) be provided, at the end adjacent to any entrance doorto any building, with a level surface with a minimumlength of 2 m, if such door opens towards such rampor 1.8 m if such door opens away from such ramp andwhere any door leaf or window swings over suchsurface, such door leaf or window shall not obstructmovement of any such person;

(f) be provided, at any change of direction between twostraight sections of ramp, with a level landing ofnot less than 1.2 m in length measured along thecenter line;

(g) be provided with a handrail on the side where thechange in level between the ends of the ramp is morethan 600 mm, and such handrail shall -(i)be positioned between 850 mm and 1 000 mm above

the surface of- the ramp; '(ii) be so finished off as not to present a

hazard to any person using such ramp; and(iii) follow the gradient of such ramp for the full

length of the ramp; (h) be provided, where there is a

difference in level between such ramp and any floor orground level at the side of the ramp, with -

(I) a balustrade, as contemplated inregulation 5F-1, where suchdifference in level is more than600 mm; or

(II) a balustrade, as aforesaid, or a raised kerb not less than 75 mm high, measured vertically above the surface of the ramp, where such difference in level is not more than 600 mm

10-A2-3 LIFTS

10-A2-3-1 In any passenger lift installation there shall be notless than one lift which shall -

(a) have a minimum internal dimension of 1.1m in width and 1.4 m in depth;

(b) have a doorway with an unobstructedwidth of not less than 800 mm; and

(c) be fitted with handrails on two sides ata height of between 850 mm and 1000 mmabove the floor level of such lift.

10-A2-3-2 Where such lift is operated automatically, it shall complywith the following requirements:

(a) Audible and visual warnings shall be provided in thelift lobby to indicate the opening of the lift doors.

(b) Any control required to be operated by a passenger insuch lift shall be positioned not higher than 1,2 mabove the floor level of such lift.

(c) The light level on the control panel in such liftshall be not less than 50 lux.

10-A2-4 DOORS

In any building contemplated in regulation11A-1.

(a) the leaf of any single door and at least one leaf of a double door when in the 900 position shall provide a clear opening not less than 750 mm wide at right angles to the direction of travel.

(b) any handle fitted to a door leaf of any door in an emergency route or in a feeder route or in any compartment containing toilet facilities for use by physically impaired persons shall be of the lever type and be installed at a height of not more than 1.2 m above floor level.

(c) any difference in level of the surface of a floor at any threshold shall be not more than 15 mm .

10-A2-5 TOILET FACILITIES

10-A2-5-1 In any building contemplated in regulation 11A-1 there shall be one or more WC pans suitable for use by persons ina wheelchair: Provided that -

(a) in any building which is a hotel, lodging house or hostel where -

(1)bedrooms are provided with private toiletfacilities, at least one such bedroom in every100 or part thereof shall be provided with WCpan, washbasin and bath or shower for Physicallyimpaired persons;

(ii) Bedrooms do not have private toilet facilities,there shall be provided, on each floor, at leastone compartment containing a WC pan and awashbasin, and one containing a bath or showeror disabled persons;

(b) in any building, not being a building contemplated inparagraph (a), where in terms of rule 9B a combinedtotal of more than 20 WC pans and urinals arerequired to serve the total population, not less thantwo WC pans shall be provided for the use ofPhysically impaired persons; and

(c) Any Physically impaired person shall not be requiredto travel, from any point in such building accessibleto such person, a distance of more than 200 m inorder to reach any compartment containing such WCpan.

10-A2-5-2 (a) In any building where separate sanitaryfixtures are required for each sex,any twocompartments required to contain a WC pan or bath orshower, irrespective of the sex for which they areprovided, may be replaced by one such compartmentprovided for the use of Physically impaired personsof both sexes, Provided that the total number ofsanitary fixtures is adequate.

(b) The door of any such compartment containing toiletfacilities shall be either a sliding door or, ifhinged, shall open outwards, and where a lockingdevice is fitted, the doorleaf shall be openable fromthe outside by the use of a suitable device, and suchleaf shall be fitted with a suitable means ofindicating whether the compartment is occupied.

(c) Any compartment containing a WC pan for the use ofdisabled persons shall have a minimum area of 2.9 M2

and a minimum plan dimension of 1.6 m .(d) A distance of not less than 450 mm or not more than

500 mm shall be provided between the centre line of

the WC pan and the nearer side wall of suchcompartment, and approved grab bars shall be fixed tosuch nearer wall and the rear wall.

(e) The distance from the front edge of the WC pan to therear wall of such compartment shall be not less than660 mm .

(f) The top surface of the seat of the WC pan shall benot less than 460 mm and not more than 480 mm abovethe floor level.

(g) Unless the WC pan is provided with a special backrest, the lid and seat thereof, when raised to theupright position, shall remain in such position.

(h) The pan flushing control and toilet-paper holdershall be easily accessible to any person in awheelchair.

10-A2-5-3 (a) Within any such compartment the washbasin shallbe mounted without

legs or pedestal, and the height from the floor to thetop edge of such basin shall be not more than 830 mm .

(b) Such washbasin shall have a vertical clearance of 650mm from under the basin to the floor, measured at apoint not less than 160 mm from the front of andunder the basin.

(c) Where a vanity slab is fitted in such compartment,the distance from the edge of the fascia to theinside of the bowl of the washbasin in such slabshall be not more than 80 mm, and such slab shallhave a vertical clearance of 680 mm measured from thefloor to the underside of the fascia.

(d) Water taps supplying such washbasin shall be operatedby lever handles, and the cold-water tap shall bewithin reach of any person sitting on the WC pan.

10-A2-5-4 Any bath or shower cubicle provided for the use ofdisabled persons shall be so designed and positioned as toallow a person in a wheelchair to transfer to a seat insuch bath or cubicle.

10-A2-6 AUDITORIA AND HALLS

Where any building contemplated in regulation 11A-1contains one or more auditoria or halls fitted with fixed

seating, floor space accessible to any person in a wheel-chair shall be set aside for the accommodation ofwheelchairs in such auditoria or halls and -

(a) Such space shall be situated adjacent to an exit doorand shall be so arranged that any wheelchair will notobstruct any aisle or exit door; and

(b) Such space shall be of a size sufficient toaccommodate -

(i) One wheelchair where the number of fixed seats for which the auditorium or hall is designed is not more than 50;(ii) two wheelchairs where the number of fixed seats

for which the auditorium or hall is designed is more than 50 but not more than 400; and

(iii) three wheelchairs or a number of wheelchairsequal to 0.5% of the number of fixed seats forwhich the auditorium or hall is designed,whichever is the greater, where such number offixed seats is more than 400.

10-A2-7 OBSTRUCTIONS IN PATH OF TRAVEL

Where in any building contemplated in regulation 11A-1(a) the difference in levels at any step or other change

in level in the floor along any path of travel ismore than 25 mm a suitable ramp from one level to theother shall be provided for the use of Physicallyimpaired persons;

(b) any part of a building, sign, light-fitting or otherobject protrudes more than 300 mm into or hangs overany path of travel. and has a clearance of less than2 m above the trafficable surface, a barriercommencing not higher than 300 mm above such surfaceshall be provided to indicate the presence andposition of the inadequate headroom above.

10-A2-8 PARKING

Where provision has been made within any buildingcontemplated in regulation SI, or on the site on whichsuch building is erected, for the parking of more than 50motor vehicles -

(a) At least one parking space per 200 or part thereofof the total number of parking spaces shall beprovided for parking of vehicles used by Physicallyimpaired persons;

(b) any parking space provided for vehicles used byPhysically impaired persons shall be of an approvedlength, shall be not less than 3.5 m wide and shallbe situated on a level surface;

(c) such parking space shall be clearly demarcated asbeing intended for the use of Physically impairedpersons only.

10-A2-9 INDICATION OF EXISTENCE OF FACILITIES

10-A2-9-1 Where facilities for Physically impaired persons have beenprovided in or in connection with any building, theexistence and position of such facilities shall beindicated by -

(a) exhibiting externally at the main entrance of and atany other approved position in such building.

(b) Exhibiting internally, in approved positions, suchsymbol, which shall be clearly visible, to indicateto Physically impaired persons the route to and theentrance to such facilities.

10-A2-9-2 The size of any such symbol shall be not lessthan 100 mm x 100 mm, and the symbol of a person in awheelchair shall be in the colour yellow on a blackbackground.

10B DEEMED -TO - SATISFY RULES1/ Each region shall, without contradicting the

provisions of this Proclamation, determine by law thecontents of deemed to satisfy rules applicable in itsown urban centers depending on local circumstances.Such rules may be rebutted by a professional orscientific justification.

2/ The Federal Government shall prepare a model deemed -tosatisfy rules for Regions.


This rule provides guidance as to one method of complyingwith the regulation since compliance with the rule willdeemed - tosatisfy the regulation. However, compliancewith any of these rules must not, under any circumstances,be regarded as the only way to comply with the relatedregulation. Where the application for approval showscompliance with any deemed to-satisfy rule the localAuthority must (except in the cases mentioned below)accept this aspect of the design as complying with therelevant regulation. However, it is most important tonote that the deemed - tosatisfy rule is not in itself aregulation & is there fore not mandatory. For this reasoncompliance with such rule may not be enforced by any LocalAuthority. If is important to note that in the case ofparts 8B,8D and 9A of the regulations, the Local Authoritymay require a rational design to be submitted where ifconsiders that the deemed - to - satisfy rules are inadequate for a particular situation.

10C CODE OF PRACTICE 1/ The appropriate Government organ shall issue an

Ethiopian Building Code of Standard applicable todesign and construction of a specified Category ofBuilding.

2/ The Code of practice issued by the appropriateGovernment organ shall continue to be in force.

EBCS - 1 Basis of Design and actions on structures

EBCS - 2 Structural use of concrete

EBCS - 3 Design of steel Structures

EBCS -4 Design of composite steed and concrete structures

EBCS - 5 Utilization of Timber

EBCS - 6 Design of Masonry Structures

EBCS - 7 Foundations

EBCS - 8 Design of Structures for earthquake Resistance

EBCS - 9 Plumbing services of buildings

EBCS -10 Electrical installation of buildings

EBCS- 11 Ventilation and air conditioning of buildings.

(TO BE COMPLETED BY APPLICANT)ANNEX 1

APPLICATION FOR APPROVAL OF PLANS

LOCAL AUTHORITY

1. name of applicant 2. Address of Applicant 3. Particulars of proposed building Works New Modification

a) Location b) Cross Total Floor Area (m2 ) c) Type of Occupancy d) Document Attached (two sets each)

Plan(Document)

S U B M I T A L S D E S I G N ER

Designation(Drg. No)

Not of sheets Size Name Reg.No

ArchitecturalStructuralElectricalSanitaryOther(Specify)

SUBMITTED RECEIVEDDate Date

Name Name

Signature Signature

FOR LOCAL AUTHORITY USE ONLY)This application was reviewed by the Building Official of Local Authority, and ascertained to be in COMPLIANCE WITH thenational Building Code of Ethiopia.

This application DOES NOT COMPLY WITH the following provisions of the NationalBuilding Code of Ethiopia.

Item Clause No Brief Description of Defects123

STAMP

45

Refer to attached sheets for items to and additionl note.

STAMP

Reg. No

Date

To be completed in triplicate 1st copy to local Authority

2nd copy to Applicant on ARRROVAL or REJECTION3rd copy to Applicant on RECEIVAL

ANNEX 2

INSPECTION REPORT LOCAL AUTHORITY

To The Building Official Local Authority

1. An inspection visit was made on at hours onRANDOM/ROUTINE/NOTICE basis on building works UNDER CONSTRUCTION/COMPLETE, the particulars being given hereunder:

2. This inspected works are being carried out in contravention of the contents of the contents of the proved plans as hereunder indicated:- (Delete if not applicable)

No Work Item Brief Description ofContravention of App. Plans

ReferenceDocument

1234

Additional work item No. toand further notes are attached. Consequently, the owner has been ORDERED to STOPWORK on the building site.

3. The inspected works are being carried out in accordance with the Approved Plans.Consequently, the owner has been advised to PROCEED with work on the building site.(delete if not applicable )

The Building official Date

BUILDINGS INSPECTOR REVEIVED BY OWNER

SIGNATURE SIGNATURE

DATE DATE

FOR THE BUILDING OFFICIAL'S USE ONLY

THIS INSPECTION REPORT HAS BEEN REVIWED AND

A) REVISED AND ISSUED TO OWNER THE

BUILDING OFFICIAL

B) APPROVED AN PASSED FOR FOLLOW-UP

SIGNATURE

C) REJECTED AND COMMUNICATED to owner

DATE

ANNEX 3

APPLICATION FORM FOR PERMIT TO ERECT SIGNS

POSTED AT WORK SITE

1. Type of sign ……………………………………………………………………………………………………

2. Location ……………………………………………………………………………………………………………………

a) Building/Premises ………………………………………………………………………………

b) Location of building/premises with respect of neighboringstreets

3. Dimensions and Details of the sign……………………………………………………………………………………………

4. Electrical and lighting details ( if applicable)…………………………………………………………………………………

5. Structural details showing also supporting framework and anchorage ( ifapplicable)………………………………………

6. Mode of operation ……………………………………………………………………………………………………………

plans as desired are enclosed.

Name and address of the Applicant Name and address of the

owner of

Building/premises

……………………………………………. …………………………………………….

…………………………………………… ……………………………………………..

Signature …………………………….

Signature…………………………………

Date……………………………….. Date………………………………………

ANNEX 4APPLICATION FOR PLANNING CONSENT

Planning Agreement and Implementation ChecklistFormat

Project Owner __________________________________________________________Project Address _______________________Woreda ____________ Kebele ________Project Type ___________________________Project Height __________________________1. Structure (Master) Plan Recommendations:

- Land use type ____________________________________________________

- Building height____________________________________________________

- Proposed major road (width, type, quality) ______________________________2. Construction Permit Considerations:

- Accessibility to the plot ______________________________________________

- Utility and sanitation services ________________________________________

- Building and plot layout____________________________________________

- Building coverage ratio _____________________________________________

- Proportion of green areas and open spaces______________________________

- Sanitary conveniences ______________________________________________

- Building height ____________________________________________________

- Building materials__________________________________________________

- Safety and means of escape_________________________________________

- Car parking_______________________________________________________

- Other considerations specified in the Additional regulations required forCategory C buildings_______________________________________________________

Spacing between buildings_____________________________________ Fire safety__________________________________________________ Accessibility and loading unloading______________________________ Waste treatment and protection against pollution____________________ Size of development __________________________________________ Building typology and income mix________________________________ Quality of open spaces and landscaping__________________________ Waste treatment and protection against pollution____________________ Protection against noise pollution________________________________ Compatibility ________________________________________________ Environmental protection measures______________________________

- Design and study requirements___________________________________ Architectural design Structural design Electrical design Sanitary design Environmental Impact Assessment

Feasibility study3. Project Designers License No.

- Architectural design __________________ __________________

- Structural design __________________ __________________

- Electrical design ________________ __________________

- Sanitary design ________________ __________________

National Building Code 2004 (Deem to satisfy)

Documents

Transcript of National Building Code 2004 (Deem to satisfy)