National Building Code 2005

NATIONAL BUILDING CODEOF INDIA 2005

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NATIONALBUILDING

CODE OF INDIA2005

BUREAU OF INDIAN STANDARDS

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SP 7:2005

FIRST PUBLISHED 1970

FIRST REVISION 1983

SECOND REVISION 2005

0 BUREAU OF INDIAN STANDARDS

ICS 0.120; 91.040.01

ISBN 81-7061 -026-5

PRICE Rs.7550.(J4

PUBLISHED BY BUREAU OF INDIAN STANDARDS, MANAK BHAVAN, 9 BAHADUR SHAH ZAFARMARG, NEW DELHI 110002, PRINTED AT SUNSHINE PROCESS, C-105/5, NARAINA INDUSTRIALAREA, PHASE I, NEW DELHI 110028 (INDIA).

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FOREWORD

Construction prograrnmes are interwoven in a large measure in all sectors of development, be it housing, transport,industry, irrigation, power, agriculture, education or health. Construction, both public and private, accounts forabout fifty percent of the total outlay in any Five Year Plan. Half of the total money spent on constructionactivities is spent on buildings for residential, industrial, commercial, administrative, education, medical, municipaland entertainment uses. It is estimated that about half of the total outlay on buildings would be on housing. It isimperative that for such a large national investment, optimum returns are assured and wastage in construction isavoided.

Soon after the Third Plan, the Planning Commission decided that the whole gamut of operations involved inconstruction, such as, administrative, organizational, financial and technical aspects, be studied in depth. For thisstudy, a Panel of Experts was appointed in 1965 by the Planning Commission and its recommendations are foundin the Report on Economies in Construction Costs published in 1968.

One of the facets of building construction, namely, controlling and regulating buildings through municipal byelawsand departmental handbooks received the attention of the Panel and a study of these regulatory practices revealedthat some of the prevailing methods of construction were outmoded; some designs were overburdened withsafety factors and there were other design criteria which, in the light of newer techniques and methodologies,could be rationalized; and building byelaws and regulations of municipal bodies which largely regulate thebuilding activity in the country wherever they exist, were outdated. They did not cater to the use of new buildingmaterials and the latest developments in building designs and construction techniques. It also became clear thatthese codes and byelaws lacked uniformity and they were more often than not specification oriented and notperformance oriented.

These studies resulted in a recommendation that a National Building Code be prepared to unify the buildingregulations throughout the country for use by government departments, municipal bodies and other constructionagencies. The then Indian Standards Institution (now Bureau of Indian Standards) was entrusted by the PlanningCommission with the preparation of the National Building Code. For fulfilling this task a Guiding Committee forthe preparation of the Code was setup by the Civil Engineering Division Council of the Indian Standards Institutionin 1967. This Committee, in turn, set up 18 specialist panels to prepare the various parts of the Code. TheGuiding Committee and its panels were constituted with architects, planners, materials experts, structural,construction, electrical illumination, air conditioning, acoustics and public health engineers and town planners.These experts were drawn from the Central and State Governments, local bodies, professional institutions andprivate agencies. The first version of the Code was published in 1970.

After the National Building Code of India was published in 1970, a vigorous implementation drive was launchedby the Indian Standards Institution to propagate the contents and use of the Code among all concerned in the fieldof planning, designing and construction activities. For this, State-wise Implementation Conferences were organizedwith the participation of the leading engineers, architects, town planners, administrators, building materialmanufacturers, building and plumbing services installation agencies, contractors, etc.

These Conferences were useful in getting across the contents of the Code to the interests concerned. TheseConferences had also helped in the establishment of Action Committees to look into tie actual implementationwork carried out by the construction departments, local bodies and other agencies in different States. The mainactions taken by the Action Committees were to revise and modernize their existing regulato~ media, such as,specifications, handbooks, manuals, etc, as well as building byelaws of local bodies like municipalities at cityand town levels, zilla parishads, panchayats and development authorities, so as to bring them in line with theprovisions contained in the National Building Code of India. In this process, the Indian Standards Institutionrendered considerable support in redrafting process.

Since the publication in 1970 version of the National Building Code of India, a large number of comments anduseful suggestions for modifications and additions to different parts and sections of the Code were received as aresult of use of the Code by all concerned, and revision work of building byelaws of some States. Based on thecomments and suggestion received the National Building Code of India 1970 was revised in 1983.

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Some of the important changes in 1983 version included : addition of development control rules, requirementsfor greenbelts and landscaping including norms for plantation of shrubs and trees, special requirements for lowincome housing; fire safety regulations for high rise buildings; revision of structural design section based on newand revised codes, such as Concrete Codes (plain and reinforced concrete and prestressed concrete), EarthquakeCode, Masonry Code; addition of outside design conditions for important cities in the country, requirementsrelating to noise and vibration, air filter, automatic control, energy conservation for air conditioning; and guidanceon the design of water supply system for multi-storeyed buildings.

The National Building Code of India is a single document in which, like a network, the information contained invarious Indian Standards is woven into a pattern of continuity and cogency with the interdependent requirementsof Sections carefully analyzed and fitted in to make the whole document a cogent continuous volume. A continuousthread of preplanning is woven which, in itself, contributes considerably to the economies in constructionparticularly in building and plumbing services.

The Code contains regulations which can be immediately adopted or enacted for use by various departments,municipal administrations and public bodies. It lays down a set of minimum provisions designed to protect thesafety of the public with regard to structural sufficiency, fire hazards and health aspects of buildings; so long asthese basic requirements are met, the choice of materials and methods of design and construction is left to theingenuity of the building professionals. The Code also covers aspects of administrative regulations, developmentcontrol rules and general building requirements; fire protection requirements; stipulations regarding materialsand structural design; rules for design of electrical installations, lighting, air conditioning and lifts; regulation forventilation, acoustics and plumbing services, such as, water supply, drainage, sanitation and gas supply; measuresto ensure safety of workers and public during construction; and rules for erection of signs and outdoor displaystructures.

Some other important points covered by the Code include industrialized systems of building and architecturalcontrol. The increase in population in the years to come will have a serious impact on the housing problem. Ithas been estimated that the urban population of India will continue to increase with such pace as to maintain thepressure on demand of accommodation for them. Speed of construction is thus of an utmost importance andspecial consideration has to be given to industrialized systems of building. With increased building activity, it isalso essential that there should be some architectural control in the development of our cities and towns ifcreation of ugliness and slum-like conditions in our urban areas is to be avoided.

Since the publication of 1983 version of National Building Code of India, the construction industry has gonethrough major technological advancement. In the last two decades, substantial expertise has been gained in theareas of building planning, designing and construction. Also, lot of developments have taken places in the techno-legal regime and techno-financial regime, apart from the enormous experience gained in dealing with naturalcalamities like super cyclones and earthquakes faced by the country. Further, since the last revision in 1983based on the changes effected in the Steel Code, Masonry Code and Loading Code as also in order to update thefire protection requirements, three amendments were brought out to the 1983 version of the Code. Consideringthese, it was decided to take up a comprehensive revision of the National Building Code of India.

The changes incorporated in the present Code, which is second revision of the Code, have been specified in theForeword to each Part/Section of the Code. Some of the important changes are:

a) A new Part O Integrated Approach Prerequisite for Applying the Provisions of the Code emphasizingon multi-disciplinary team approach for successfully accomplishing build$g/development project, hasbeen incorporated.

b) New chapters on significant areas like structural design using bamboo, mixed/composite constructionand landscaping have been added.

c) Number of provisions relating to reform in administration of the Code as tdso assigning duties andresponsibilities to all concerned professionals, have been incoprated/modified. Also detailed provisions/performance to ensure structural sufficiency of buildings, have been prescribed so as to facilitateimplementation of the related requirements to help safely face the challenges during natural disasterslike earthquake.

d) Planning norms and requirements for hilly areas and rural habitat planning, apart from detailed planningnorms for large number of amenities have been incorporated.

e) Fire safety aspects have been distinctly categorized into fire prevention, life safety and fire protection

(vi)

National Building Code Sectional Committee, CED 46

ChairmanDr H. C. VISVESVARAYA

Chandrika, at 15th Cross, 63-64 East Park RoadMalleswaram, Bangalore 560003

Vice-ChairmanSHRI V. SURESH

P-233/3, Officers Enclave,Air Force Station, Rajokari, New Delhi 110038

Organization

Ahmedabad Municipal Corporation, Ahmedabad

Bangalore Mahanagara Palike, Bangalore

Builders Association of India, Mumbai

Building Materials and Technology Promotion Council, New Delhi

Bureau of Energy Efficiency (Ministry of Power), New DelhiCentral Building Research Institute (CSIR), Roorkee

Central Public Heafth and Environmental Engineering Organisation(Ministry of Urban Development and Poverty Alleviation),New Delhi

Central Public Works Department (Central Designs Organization),New Delhi

Central Public Works Department (Electrical Department),New Delhi

Centre for Disaster Mitigation and Management, Anna University,Chennai

Chennai Metropolitan Development Authority, Chennai

Construction Industry Development Council, New Delhi

Council of Architecture, New Delhi

Delhi Development Authority, New Delhi

Delhi Fire Service, Government of National Capital Territoryof Delhi, Delhi

Department of Science and Technology (Ministry of Scienceand Technology), New Delhi

Directorate General of Employment and Training, New Delhi

Engineer-in-Chie~s Branch, Army Headquarters, New Delhi

Forest Research Institute (Indian Council for Forestry Researchand Education), Debra Dun

Housing and Urban Development Corporation Ltd, New Delhi

Indian Geotechnical Society, New Delhi

Representative(s)

SHFCVATSALS. PATELSHRI JAGDISHA. PATEL (Alternate)

SHRI M. R. SREENIVASAMURTHYSHRI R. RAMEGOWDA(Alternate I)SHRI N. KRISHNA(Alternate II)

SW B. G. AHUJA

SW T. N. GUPTA& Smu D. B. N. RAOREPRESEFWATWE

SHiw V. K. hhmSmo B. S. GUPTA(Alternate)

SHRI B. B. UPPALSHRt V. K. CHAURASIA(Alternate)

CHIEF ENGINEER(DESIGNS)SUPERINTENDINGENGINEER(S& S) (Alternate)

CHIEF ENGINEER(ELECTRICAL)I

DIRECTOR

MEMBERSECRETARYSHRI N. V. RAKHUNATH(Alternate)

SHRI P. R. SWARUPSHRI ANCLCHADHA(Alternate)

SHRI PRi3MENnRARAJ MEHTASHRI SUDHIRVOHRA (Alternate)

ENGINEERMEMBERCHIEFENGINEER(HQ) (Alternate)

SHRI R. C. SHARMA

SHRI V. RAO ALYAGARI:

SHP.IASHWANIKUMAR

BRIG S. K. SHARMASHRI D. K. DrNrrER(Alternate)

DIRECTORGENERALDIRECTOR (Alternate)

CHAIRMAN& MANAGINGDIRECTORSHRI R. K. SAFAYA(Alternate)

SHRI D. B. MAHAJANDR M. D. DESAI (Alternate)

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Organization

Indian Institute of Technology (Centre for Energy Studies),New Delhi

Iudian Roads Congress, New Delhi

Institute of Town Plauners, India, New Delhi

Institution of Fire Engineers (India), New Delhi

Ministry of Home Affairs, New Delhi

Ministry of Home Affairs (Disaster Management Division),New Delhi

Ministry of Non-Conventional Energy Sources, New Delhi

Ministry of Road Transport and Highways, New Delhi

Municipal Corporation of Greater Mumbai, Mumbai

National Buildings Construction Corporation, New Delhi

National Council for Cement and Building Materials, Ballabgarh

National Design and Research Forum, The Institution of Engineers(India), Bangalore

National Environmental Engineering Research Institute (CSIR),Nagpur

North Eastern Council, Shillong

Public Works Department (Roads and Buildings), Gandhinagar

Research, Designs and Standads Organization (Ministry of Railways),Lucknow

School of Planning and Architecture, New Delhi

Structural Engineering Research Centre (CSIR), Chennai

Suri and Suri Consulting Acoustical Engineers, New Delhi

The Energy and Resources Institute, New Delhl

The Indian Institute of Architects, New Delhi

The Institution of Engineers (India), Kolkata

Tbe Institution of Surveyors, New Delhi

Town and Country Planning Organization, New Delhi

U.P. Housing and Development Board, Lucknow

Unitech Ltd, Gurgaon

Impersonal capacity (5, Sunder Nagar, New Delhi l10003)BIS Directorate General

Representative(s)

PROF N. K. BANSAL

CHIEF ENGINEER(DESIGN), CPWDSuperintending ENGINEER(DESIGN), CPWD (Alternate)

DR S. K. KULSHRESTHA

PRESiDENTGENERALSECRETARY(Alternate)

FIRE ADVISOR

SHRI M. P. SAINANISHRI S. K. SWAMI(Alternate)

DR T. C. TRIPATHI

SHKSS. B. BASUSHRt P. HALDER(Alternate)

DIRECTOR(ENGG SERVICES& PROIECTS)CITY ENGINEER(Alternate)

Sstro B. PRASADSmw N. P. AGARWAL(Alternate)

SHRI SHtBANRAtNADR ANIL KUMAR(Alternate)

PROtI R. NARAYANAIY~NGARSHRI B. SURESH(Alternate)

DR ARINDAMGHOSHDR V. P. DESHPANDE(Altema?e)

SHRI P. K. DEB

SHRI V. P. JAMDARSHRI M. S. JALLUNDHWALA(Alternate)

SHRI R. K. GUPTASHSUJ. P. DAS (Alternate)

DtR~CTOR

Srrru C. V. VAIDYANATHANSHRI K. MANI (Alternate)

SHRI GAUTAMSURI

Ms MILI MAJUMDARMs VIDLSHASALUNKE-PALSULE(Alternate)

SHRI BALBIR VBRMASHRSABHIJITRAY (Alternate)

PROF G. P. LALSHRI O. P. GOBL (Alternate)

SHRI K. S. KHARBSHR1R. K. BHALLA(Alternate)

SHRI K. T. GORUMUKHISHRI J. B. KSHtRSAGAR(Altemare)

SHRt HARt GOPAL

SHR] SUSH]LSHARMASHRI SHAHtDMAHMOOD(Alternate)

DR J. R. BHALLA

SHRI S. K. JAIN, Director & Head (Civil Engineering)[Representing Director General (Ex-of/icio Mernberj

Member SecretarySHRI SANJAYPANT

Joint Director (Civil Engineering)

(ix)

Special Panel for Guiding and Co-ordinating theRevision of National Building Code of India, CED 46:SP

Organization Representative(s)

In personal capacity (P-233/3, Oflcers Enclave, Air Force Station, SHRI V. SI.JF.ESH(Convener)Rajokari, New Delhi 110 038)

Building Materials and Technology Promotion Council, New Delhi SHRST. N. GUPTACentral Building Research Institute (CSIR), Roorkee SHSUV. K. MATHURCentral Public Works Department, New Delhi SHKSH. S. DOGRA

Council of Architecture, New Delhi SHRI PREMENDRARAJ MEHTA

Engineer-in-Chiefs Branch, Army Headquarters, New Delhi LT-GriN HARSUNIYAL

The Institution of Engineers (India), Kolkata PROF G. P. LALSHRI O. P. GOEL (Alternate)

Bureau of Indian Standards, New Delhi SHSUSANJAYPANT

Ad-hoc Group for Part Oof NBC, CED 46:AG


In personal capacity ( Chandrika, at 15th Cross, 63-64, East Park Road, DR H. C. VLSVESVAKAYA(Convener)A4alleswaram, Bangalore 560 003)

Council of Architecture, New Delhi SHRI PREiMENDRARAI MEHTA

In personal capacity (P-233/3, Ofticers Enclave, Air Force Station, SHRI V. SUKESHRajokari, New Delhi 110 038)

In personal capacity (A-39B, DDA Flats, Munirka, New Delhi 110 067) SHRI P. B. VUAYIn personal capacity (EA-345, Maya Enclave, New Delhi 110 064) SHRI J. N. BHAVANtPRASAD

Panel for Administration, Development Control Rules andGeneral Building Requirements, CED 46:P1

Organization

In personal capacity (P-233/3, Oficers Enclave, Air Force Station,Rajokari, New Delhi 110 038)

Ahmedabad Municipal Corporation, Ahmedabad


Central Building Research Institute (CSIR), Roorkee

Central Public Works Department, New Delhl

Consulting Engineers Association of India, New Delhi




Indian Association of Structural Engineers, New Delhi

Institute of Town Planners (India), New DelhiMunicipal Corporation of Delhi, Delhi



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Representative(s)

SHRI V. SURESH(Converser)

REPRESENTATIVE

SHRI T. N. GWTASHRI RAJESHMALIK (Alternate)

SHRI V. K. MATHURSHRI N. K. SHANGARI(Alternate)

SHRI R. S. KAUSHALSHFUSANIIBSENGUFTA(Alternate)

SHRI S. C. MEHROTRASHRI N. F. PATEL(Alternate)

SHSUPREMENDRARAJ M@TASHRI SoDmR VOHRA(Alternate)

SHRI R. C. KINGERSEW A. K. GUPTA(Alternate)

SHRI K. C. BATRA

SHRI MAHENDRARAJ

DR S. K. KUtXHRESTHA

ENGtNEER-IN-CHtEFSrrRI M. M. DAS(Alternate)

CHIEF ENGINEER(DWELOPMENTPLAN)DtwTY ClttETENoamaR (DEWLOPMENTPLAN)-I(Alternate)

DR ANIL KUMAR

-T-

Orgarrizcrtion Representative(s)

National Real Estate Development Council, New Delhi BRIG R. R. SINGH (RETD)

School of Planning and Architecture, New Delhi PROF SUBIR SAHA

The Indian Institute of Architects, Mumbai SHRt BALBIR VERMASHR] ABHU]TRAY (Alfernate)

The Institution of Engineers (India), Kolkata SHRI A. D. SHIRODESHR] P. B. VLIAY(Alternate)

Town and Country Planning Organization, New Delhi SHRI J. B. KSHIRSAGARSHRI R. SRINWAS(Alternate)

Panel for Fire Protection, CED 46:P2

Organization

In personal capacity (29/25, Old Rajendra Nagar, New Delhi 110 060)Central Building Research Institute (CSIR), Roorkee

Central Public Works Department, New Delhi

Deolalikar Consultants Pvt Ltd, New Delhi

Directorate of Town and Country Planning, Government Gf Tamil Nadu,Chennai

Engineer-in-Chie~s Branch, Army Headquarters, New Delhi

Institution of Fire Engineers (India), New Delhi

Lloyd Insulations (India) Ltd, New Delhi

Ministry of Home Affairs, New Delhi

Delhi Fire Service, Government of National Capital Territory of Delhi,Delhi

Municipal Corporation of Greater Mumbai (Mumbai Fire Brigade),Mumbai

National Council for Cement and Building Materials, Ballabgrrrh

National Fire Service College (Ministry of Home Affairs), Nagpur

Oil Industry Safety Directorate, New Delhi

Regional Research Laboratory (CSIR), JorhatSpectral Services Consultants Pvt Ltd, New Delhi

Tariff Advisory Committee, Mumbai


In personal capacity (P-233/3, Ofjlcers Enclave, Air Force Station,Rajokari, New Delhi 110 038)

Representative(s)

SHRI S. K. DHERI (Convener)DR T. P. SHABMA

DR GOPALKRISHNA(Alternate)SHRI ARVIND KANSAL

SHRI R. S. KAUSHAL(Alternate)SHRI S. G. DEOLALIKAR

SHRI S. DHANASEKARANSHRI R. RA.JAGOPALAN(Alternate)

SHRt R. A. DUBEYSHP.IAJAY SHANKAR(Alternate)

SHRI U. S. CHHILLARSHRI S. P. BATRA(Alrerrrate)

SHRI SANJEEVANGRA.%-m K. K. MrTBA (Altemafe)

SHat OM PRARASHSHRI D. K. SHAMMI(Alternate)

SHIU R. C. SHARMASHRI G. C. MISRA (Alternate)

SHRI A. D. JHANDWALSHRI V. H. NAIK (Alternate)

DR ANIL KUMAR

DR K. C. WADHWASHRI SHAMIM(Alfemate)

SHRI D. JAGANNATHSHRI S. K. AGGARWAL(Alternate)

REPRBSENTATWB

SHRI SANDBEPGOEL

SHRI Z. U. ISLAMSHRI D. N. SAHA (Alternate)

PROF M. P. CHOWDIAHSHR1K. B. RAJORtA(Alternate)

SHRI V. SURESH

Panel for Building Materials, CED 46:P3


Building Materials and Technology Promotion Councils, New Delhi SHRI T. N. GUmA (Convener)

Central Building Research Institute (C.WR), Roorkee DR C. L. VERMASHRI L. K. AOARWAL(Alternate)

Central Public Works Department, New Delhi SHRI H. K. L. MEHTASHFOR. C. GUFTA (Alternate)

(xi)

Representative(s)Organization


Department of Science and Technology (Ministry of Science andTechnology), New Delhi

Engineer-in-Chiefs Branch, Army Headquarters, New Delhi


Indian Plywood Industries Research and Training Institute,Bangalore



SHRI ANURAGROYSHRI ATUL GUPTA (Alternate)

SHRI SOUMITRABISWASSHRI G. SRIRANTH(Alternate)

SHRI A. K. SINGHSHR1P. K. GUPTA(Alremate)

CHAIRMANAND MANAGINGDIRECTORSHRI S. K. TANEIA(Alternate)

SHR1 K. SHYAMASUNDARSHRI M. PAWANKGMAR(Alternate)

SHRI SHIBANRAtNADR K. MOHAN (Alremate)

SHRSG. L. RAOSHRI R. S. GOEL (Alternate)

Panel for Loads, Forces and Effects, CED 46:P4

Organization



Central Building Research Institute, Roorkee


Centre for Disaster Mitigation and Management, Anna University,Chennai

Mahendra Raj Consultants Pvt Ltd, New Delhi


The Institution of Engineers (India), KolkataIn personal capacity (Professor of Bridge Engineering, Railway Chair,

Department of Civil Engineering, Indian Institute of Technology,Roorkee 247 667)

In personal capacity (Emeritus Scientist, Structural EngineeringResearch Centre, Madras CSIR Campus, Taramani,Chennai 600 113)

In personal capacity (P-233/3, OJjicers Enclave, Air Force Station,Rajokari, New Delhi 110 038)

Representative(s)

DRANtLKUMAR (Converter)SHRI T. N. GUPTA

SW I. S. StDHG (Alternate)SHRI B. S. GUPTA

SHRI A. K. MrtTAL (Alternate)SHRI N. M. D. JAtN

Ssnrt ABHAYSrNHA(Alternate)DR R. K. BHANDASU

SHRI MAHENDRARAJSHRI J. GHOS~ (Alternate)

SHRI C. V. VASDYANATHANSHRI K. MANI (Alternate)

SHRI P. P. DHARWADKAR

DR PREM KRtSHNA

DR T. V. S. R. APPA RAO

SHRI V. SURESH

Panel for Soils and Foundations, CED 46:P5#

Organization Represenhtive(s)

Centre for Disaster Mitigation and Management, Anna University, DR R. K. BHANDARS(Convener before 19 September 2003)Chenrmi

Central Building Research Institute (CSIR), Roorkee Smu CHANORAPRAKASH(Convener since 19 September 2003)DR SURENDRAKrrMAR(Alternate)

Afcons Infrastructure Limited, Mumbai SHRTS. B. JOSHISHRI D. G. BHAGWAT(Alternate)

Central Public Works Department, New Delhi SHRI BHAGWANSINGHSmu R. K. StNGHAL(Alternate)

_

Delh] Development Authority, New Delhi SHRI S. P. RUSTGGISHRI J. M. JOSHI (Alternate)

( xii)


Engineer-in-Chiefs Branch, Army Headquarters, New Delhi COL R. N. MALHOTRACOL N. B. SAXENA(Alternate)

Indian Cieotechnical Society, New Delhi MAJ GEN S. N. MUKEKJEESHRI SANIAYGUPTA (Alternate)

National Council for Cement and Building Materials, Ballabgarh DR AN[L KUMARSHRXH. K. JULKA(Alternate)

The Institution of Engineers (India), Kolkata PROF JANARDANJHA

Panel for Timber, CED 46:P6

Organization

In personal capacity (Pratap Nursery Lane, Near Gurdwara,Pandihvari, Debra Dun 248007)

Bamboo Society of India, Bangalore





Forest Research Institute (Indian Council for Forestry Researchand Education), Debra Dun



North Eastern Council, Shillong

The Institution of Engineers (India), KolkataIn personal capacity [No. 179 (710), 24th B-Cross, 3rd Block,

Jayanagar, Bangalore 560 011]In personal capacity (103/11, Vasant Vihar, P. O. New Forest,

Debra Dun 248 006)

Representative(s)

SHSUK. S. PRUTHI(Convener)

SHRI A. C. LAKSHMANANDR K. A. KUSHALAPPA(Alternate)

SHRI T. N. GUPTASHRI RAJESHMALIK (Altemare)

SHKt S. K. MrrrALSHRSB. S. RAWAT(Alternate)

SHRSMATSP. VERMASHru G. C. KHATTAR(Alternate)

SHRI A. K. SINGHSHRI P. K. GUPTA(Alternate)

SHtU B. K. BHATIA

CHAIRMANAND MANAGINGDIRECTORSHRI S. K. TANEIA(Alternate)

SHRt K. SHYAMASUNDARSHRI H. GURUVARBDDY(Alternate)

SHRt P. K. DEB

SHRI KRISHNAKUMAR

DR H. N. JAGADEESH

SHRI S. S. RAJPUT

Panel for Masonry, CED 46:P7

Organization

Delhi Tourism and Transportation Development Corporation,New Delhi






Indian Institute of Science (Centre for Astra), Bangalore

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Representative(s)

SHRI JOSE KUWAN (Convener)

SHRt T. N. GUmASHRI PANKAJGUPTA

Organization

Indian Institute of Technology, Kanptu

Representative(s)

DR DLIRGESHC. RAIDR C. V. R. MURTY (Alternate I)DRSUDHIRK. JASN(AltematelI)

Indian Institute of Technology, New Delhi DR S. N. SINHA

Public Works Department, Government of Maharashtra, Mumbai SHRI P. K. NINAVE

Structural Engineering Research Centre (CSIR), Chennai SHRI R. JAYARAMANSHRI A. CHELLAPPAN(Alternate)

The Institution of Engineers (India), Kolkata SHRI S. L. GARG

Panel for Plain, Reinforced and Prestressed Concrete, CED 46:P8

Organization

In personal capacity (35, Park Avenue, Annamma, Naicker Street,Kuniamuthur, Coimbatore 641 008)

Central Building Research Institute (C SIR), Roorkee


Delhi Tourism and Transportation Development Corporation,New Delhi

Gammon India Ltd, Mumbai

Hindustan Prefab Limited, New Delhi

Larsen and Toubro Ltd, ECC Construction Group, Chennai

Ministry of Road Transport and Highways, New Delhi


Research, Designs and Standards Organization (Ministry of Railways),Lucknow


Tandon Consultants, New Delhi


Representative(s)

DR C. RAIKUMAR(Convener)

DR B. S. GUPTADR B. K. RAO (Alternate I)DR AWADESHKUMAR(Alternate 11)

SHRI N. M. D. JMNSHP.IABHAYSrNHA(Alternate)

SHRI JOSE KURIAN

SHRI S. A. REDDI

SHRI HAZARILALSHRSM. KUNDU(Alternate)

SHRI K. P. RAOHAVANSHRI S. KANAPPAN(Alternate)

SHRI T. B. BANERJEESHRI SATISHKUMAR(Alternate)

DK ANIL KUMARSHRI H. K. JULKA(Alternate)

SHRI R. K. GUPrASHRI J. P. DAS (Aitemate I)SHRI A. K. GUPTA(Alternate II)

DR N. LAKSHMANANSHSUH. G. SREENATH(Alternate)

SHRI MAHESHTANDON

SHRI S. S. CHAKRABARTY

Panel for Steel, CED 46:P9

Organization

MECON Ltd, Ranchl


Engineer-in-Chiefs Branch, Army Headq~arters, New Delhi

Indian Institute of Technology, Chennai

Institute for Steel Development and Growth, Kolkata

Kalpataru Power Transmission Ltd, Gandhinagar

M. N. Dastur and Co Ltd, Kolkota

( xiv)

Representative(s)

SHRI A. BASU (Convener)CHIEF ENGINEER ,

SUPRtNTENDtNGENGA (P&A) (Alternate)SHRI D. K. DtNKER

COL V. K. TYAGt (Alternate)DR V. KALYANARAMAN

DR T. K. BANnYOPADHYAYSW km GUHA (Alternate 1)SHro P. L. RAO (Alternate 11)

SHRI M. C. MEHTASHRI B. K. SATtSH(Alternate)

SHRt SATYASGSENSrrm TAPANKUMARBHAUMIK(Alternate)


Research, Designs and Standards Organization (Ministry of Railways), SHRTR. K. GUmALuckncsw SHRI D. K. SINGH(Alternate)

SPECO Engineering Pvt Ltd, New Delhi SHRI ONKARSINGH

Structural Engineering Research Centre (CSIR), Chennai DR S. SEETHARAMANSHRI S. ARUL JAYACHANDRAN(Alternate)

The Institute of Engineers (India), Kolkata SHRI R. P. GUPTA

Panel for Prefabrication and Systems Buildings, CED46:P1O

Organization

Larsen and Toubro Ltd, Chennai

B. G. Shrike Construction Technology Pvt Ltd, Pune




Hindustan Prefab Limited, New Delhi

Institute for Steel Development and Growth,

Lloyd Insulations (India) Ltd, New Delhi

Kolkata

National Counci I for Cement and Building Materials, Ballabgarh

Shirish Patel and Associates Consultants Pvt Ltd, Mumbai


System Building Technologists, New Delhi

The Indian Institute of Architects, Mumbai

The Institution nf Engineers (India), Kolkata

Representative(s)

SHRI A. RAMAKRISHNA(Convener)SHRI K. V. RANGASWAMX(Alternate)

SHRI G. R. BHARITKAR

SHRI R. P. JAKHALEKAR(Alternate)SHR1B. N. HIRA

SHRI D. K. GAUTAM (Alternate)CHIEF ENGCNEER(NDZ-111)

SHRI A. K. GARG (Alternate)COL R. N. MALHOTRA

SHRI P. K. GUPTA(Alternate)SHR] HAZARI LAL

SHRI M. KUNDU (Alternate)DR T. K. BANDYOPADHYAY

SHRI ALOK BABHYA (Alternate)SHRt MOHtT KHANNA

SHRI K. K. MtTRA (Alternate)SHRI H. K. JULKA

SHRI SATISHSHARNtA(Alternate)SHR[ SHIRISHB. PATEL

SHRJ P. H. SRINWASACHAR(Alternate)SHRI H. G. SREENATH

SHRI R. JAYARAMAN(Alternate)SHRI G. B. SINGH

SHRI S. R. SIKKA

DR R. K. BHANDARI

SHFUP. B. VrJAY (Alternate)

Panel for Constructional Practices and Safety, CED 46:P11

Organization

In personal capacity (103, Charak Sadan, Vikaspuri,New Delhi 110 018)

Adlakha and Associates, New Delhi

Builders Association of India, Mumbai



Construction Industries Development Council, New Delhi

Director General of Factory Advice Service and Labour Institute(Ministry of Labour), Mumbai

(xv)

Representative(s)

SHRI P. ICVJSHNAN(Convener)

SHRI PRAMOD ADLAKHA

SHRI RAJ PAL ARORA

SHRt N. K. SHANGAR]SHRI B. S. GUPTA (Alternate)

SHSUR. P. BHARDWAJ

SHRI P. R. SWARUP

SHRI SUNIL MAHAJAN (Alternate)SHRI S. K. DUITA

SHRI I. ROYCHOWDHURI(Alternate)

Organization

Engineer-in-Ch]efs Branch, Army Headquarters, New Delhi

Engineers India Limited, New Delhi

Gammon India Ltd, Mumbai


Larsen and Toubro Ltd, Chennai

National Building Construction Corporation, New Delhi

School of Planning and Architecture, New Delhi



Representative(s)

SHRI DINESH SIKAND

SHR1A. K. SrNGII (Alternate)SHRI M. P. JAIN

SHR] A. K. TANDON(Alternate)SHRI K. N. CHATrERIEE

SHRI S. C. SARIN (Alternate)SHRI H. GURUVA REDOY

SHRt M. PAVAN KOMAR (Alternate)SHRt R. P. SAKUNIA

SHRI B. PRASADSHRI N. P. AGARWAL(Alternate)

DR V. THIRUVENGADAM

SHRI KAILASHCHANDRAJAITIASHRSC. M. SAPRA(Alternate)

SHRTH. P. JAMDAR,%rm K. B. RAJORIA(Alternate)

Panel for Lighting and Ventilation, CED 46:P12


Central Building Research Institute (CSIR), Roorkee SHRI V. K. MATHOR(Convener)DR lSHWARCHAND(Alternate 1)SHFUSNREEKOMAR(Alternate II)

All India Institute of Hygiene and Public Health, Kolkata DR GAUTAM BANERJEE

Bureau of Energy Efficiency (Ministry of Power), New Delhi REPRESENTATIVECentral Public Works Department, New Delhi CHtEF ENGtNEBR(E) II

SUPBRtNTENDINGENGINEER(E) P (Alternate)Council of Architecture, New Delhi

Director Generat Factory Advice Service and Labour Institute(Ministry of Labour), Mumbai


Indian Society for Lighting Engineers., New Delhi

Ministry of Non-Conventional Energy Sources, New Delhi


National Physical Laboratory (CSIR), New DelhiPhilips India Ltd, Mumbai

PROF VINOD KUMAR GUPTA

SHRJS. K. DUTTASHru I. ROYCHOWDHUSU(Alternate)

SHRI S. K. MAHESHWARtSHRSA. C. VW (Alternate)

SHRI P. K. BANDYOPADHYAY

SHRt BIBEK BANDYOPADHYAY

SHRI P. G. CHAVANSHRI R. K. RAHATE (Alternate)

DR H. C. KANDPAL

SHRIMATISUDESHNAMUKHOPADHYAYSHRI S. P. TAMBE,(Altemate)

School of Planning and Architecture, New Delhl PROF ARVIND KISHAN

The Indian Institute of Architects, Mumbai PROF ASHOK B. LALL

The Institution of Engineers (India), Kolkata PROF C. S. JHA

Panel for Electrical Installations, CED 46:P13


1,

In personal capacity (EA 345, Maya Enclave, New Delhi 110 064) SHRI J. N. BHAVANtPRASAD(Convener)Bureau of Energy Efficiency (Ministry of Power), New Delhi REPRESENTATIVECentral Electricity Authority, New Delhi CHIEF ENOtNEER(DP & D)

DIRECTOR(UT) (Alternate)Chief Electrical Inspectorate, Tamil Nadu SHRI S. SUBRAMANIAN

Wrrrr M. KAMALBATCHA(Alternate)

(xvi)


Engineer-in-Chie~s Branch, Army Headquarters, New Delhi Smu AIAY SHANKARSmu Smv OM PRAKASH(Alternate)

Engineers India Ltd, New Delhi SHRI A. ANANTHANARAYANSHFUN. SETHI (Alternate) .

Fairwood Consultants Pvt Ltd, New Delhl SMT SHRUTKGOEL

Siemens Ltd, Chennai SHRI HEMANTTUNGARESHRI AJIT DESHPANDE(Alternate)

The Institution of Engineers (India), Kolkata PROF SAMIRANCHOUDHARYLT GEN S. K. JAtN (Alternate)

Panel for Air Conditioning and Heating, CED 46:P14


Spectral Services Consultants Pvt Ltd, New Delhi DR PREM C. JMN (Convener)SHR1ASHISHRAKHEIA (Alternate)

Airtron Consultants, Bangalore SHRt R. V. SIMHA

Air Treatment Engineering Pvt Ltd, Chennai SHRI K. P. S. RAMESH

Blue Star Limited, Mumbai SHRI JITENDRAMORESHWARBHAMBURE

Bureau of Energy Efficiency (Ministry of Power), New Delhi REPRESENTATIVECentral Building Research Institute (CSIR), Roorkee DR ISHWARCHAND

SHRI B. M. SUMAN (Alternate)Central Public Works Department, New Delhi SHRt S. R. SUBRAMANIAN

SHSUS. P. BARANWAL(Alternate)Engineer-in-Chiefs Branch, Army Headquarters, New Delhi SHRI NARENDRA KUMAR

SHR1R. A. DUBEY (Alternate)Hi-Tech Consultant, New Delhi SHRI N. S. HUKMANI

Indian Institute of Technology, New Delhi DR R. S. AGARWAL

Indian Society for Heating, Refrigeration and Air-Conditioning SHRI N. S. HUKMANIEngineers, New Delhi

Sterling India Consulting Engineers, New Delhi SHRI G. C. MODGIL

Suvidha Engineers India Ltd, Noida SHRt ALOK C. TANDON

Tbe Institution of Engineer (India), Kolkata SHRI PRADEEPCHATURVEDIVoltas Limited, New Delhi SHRI S. M. KULKARNI

SHRI ATUL MALIK (Alternate)In personal capacity (K-43, Kailash Colony, New Delhi 110 048) SHRI M. M. PANDE

Panel for Acoustics, Sound Insulation and Noise Control, CED 46:P15

Organization

Suri and Suri Consulting Acoustical Engineers, New Delhi

All India Radio, New Delhi



Engineer-i n-Chie~s Branch, Army Headquarters, New Delhi

Indian Institute of Science, Bangalore

Indian Institute of Technology, Chennai

Indian Institute of Technology, Kharagpur

( xvii)

Representative(s)

SHRI GAUTAM Suru (Converrer)SHRI DEEPAK MEHROTRA

SHRt S. MUTHUSWAMY(Alternate)SHRI R. K. SRIVASTAVA

SHRI R. L. DHABAL(Alternate)SHRI K. A. ANANTHANARAYANAN

SHRI N. NAGARAJAN(Alternate)BRIG S. K. SHARMA

SHRIMATIANURADHABHAStN (Alternate)PROF M. L. MUNJAL

PRoi= S. NARYANAN

DR A. RAMACHANDRAIAH(Alternate)DR A. R. MOHANTY

Organization Representative(s)Lloyd Insulations (India) Pvt Ltd, New Delhi SHRI N. SRINIVAS

SHar B. S. JAMWAL(Alternate)

National Physical Laboratory (CSIR), New Delhi DR V. MOHANANDR OMKAR SHARMA (Alternate)

School of Planning and Architecture, New Delhi PROF (DR) SHOVAN K. SAHA

The Indian Institute of Architects, Mumbai SHR[ INDRANATHBASU

The Institution of Engineers (India), Kolkata SrrRS K. V. CHAUBALSHKSP. K. ADLAKHA(Alternate)

Panel for Installation of Lifts and Escalators, CED 46:P16

Organization

KONE Elevators India Ltd


Chief Electrical Inspectorate, Government of Delhi, New Delhi

Chief Electrical Inspectorate, Govt of Tamil Nadu, Chennai


ECE Industries Ltd, Ghaziabad


Otis Elevator Company (India) Ltd, New Delhi

Public Works Department, Government of Maharashtra, Mumbai

Schindler India Pvt Ltd, Mumbai


In personal capacity [4, Vidharbha Samrat Co-operative HousingSocie@, 93 C, V. P. Road, Vile Parle (West), Mumbai 400 056]

Representative(s)

SHR1A. SANKARAKRISHNAN(Convener)SHRSL. N. VENKATRAMAN(Alternate I)Smu S. EMANUELRAJASEKARAN(Alternate II)

SHRt J. K. CHAUDHURY

Smu A. S. LUTHRA (Alternate)Srmt K. L. GROVER

SI-KUA. K. AOGARWAL(Alternate)Smn S. SuaRAMANIAN

SHRSM. KAMALBATCHA (Alternate)Stint S. K. SmHA

Sma N. K. GUPTA(Alternate)Smu P. K. BANKA

SHSUJAOATMOHAN (Alternate)SHRS RAMA NATH

Smu M. L. BANSAL(Alternate)Smt V. S. MOHAN

Smu S. P. RAO (Alterndte I)Srntr ANURAG MANGLIK(Alternate II)

Ssrru A. M. THATTESHSGS. D. WAN (Alternate)

SHRI RONNtE DANTESHtUT. A. K. MATHEWS(Alternate)

SHRI JAGMANStNGHDR R. K. DAVE (Alternate)

SHRI A. S. HERWADKAR

Organization

Deolalikar Consultants Pvt Ltd, New Delhi

Birhatr Mumbai Licenced Plumbers Association, Mumbai


Central Pollution Control Board, New Delhi



Central Ground Water Board. New Delhi

Panel for Plumbing Services, CED 46:P17

Representative(s)

SHRI S. G. DEOLALIKAR(Convener)PRESIDENT

SHst H. CX~GANDrrr(Alternate)SHRI SORESHKOMAR%urMA

SHSUAIAY StNGH (Alternate I)SHSGR. S. CmMora (Alternate 11)

DR SALEEMROMANSSHIG S. K. SHARMA(Alternate)

DR A. B. AKOLKARDR M. SUNDARSVADWAL(Alternate)

Smu H. S. DOGRASHRI A. K. SINHA(Alternate)

SHRI S. P. RUSTOG1SHru G. K. SEITU (Alternate)

&-

( xviii)

Organization

Delhi Jal Board, New Delhi


Indian Plumbing Association, New Delhi

Indraprastha Gas Ltd, New Delhi

Municipal Corporation of Delhi, Delhi


National Environmental Engineering Research Institute (CSIR),Nagpur

Spectral Services Consultants Pvt Ltd, New Delhi


The Institution of Engineers (India), KolkataIn personal capacity (B/58A, Gangotri Enclave, Alaknanda,

New Delhi 110 019)In personal capacity (Principal Advisor, School of Environment

Management, Guru Gobind Singh Indraprastha University,Keshmere Gate, Delhi 110 006)

In personal capacity (610, Technology Apartments, 24, Palparganj,Delhi 110 092)

Panel for Landscaping, Signs and Outdoor Display Structures, CED 46:P18


In personal capacity (5, Sunder Nagar, New Delhi 110003) DR J. R. BHALLA(Convener)Central Public Works Department, New Delhi SHRIARVIND KANSAL

SHRI A. N. DEVUCAR(Alternate)Council of Architecture, New Delhi KUMARIVLNITAC. K. VIIAYAN

Delhi Urban Arts Commission, New Delhi SHRI H. K. ~A~AVSHRI DLNANATH (Alternate)

Housing and Urban Development Corporation, New Delhi SHRI R. K. SAFAYA

Institute of Town Planners, India, New Delhi DR S. K. KULSHRESTHA

Municipal Corporation of Delhi, Delhi SHRLS. S. HADLCESHRI S. RAMZSH(Alternate)

Municipal Corporation of Greater Mumbai, Mumbai SHRLM. S. GHAGSHRLR. K. RAHATE(Alternate)

National Institute of Design, Ahmedabad Smrt ANANDODUTTASW J. G. SEVAK(Alternate)

Selvel Publicity and Consultants Pvt Ltd, Mumbai SHRSK. S. NICHOLSON

Shaheer Associates, New Delhi PROF M. SHAHEER

Representative(s)SHRI SUBHASHCHANDER

SHRI JITENDRASINGHSHRLSURYAPRAKASH(Alternate)

SHRI SUDHAKARANNAIRSHRLP. RAMACHANDRAN(Alternate)

SHRLPEEYUSH TRIPATHISHRI C. S. SAGAR(Alternate)

ENGINEER-IN-CHSEF

SHRI M. M. DAS (Akerrrare)SHRI T. V. SHAH

Smu V. R. PEDHNEKAR(Ahemate)DR APURBAGUPTA

SHR] P. S. KELKAB(Alternate)SHRLSANDEEPGOBL

SHRI UDAY PANDE

SHRI P. C. TYAGI

SHRI J. D CRUZ

DR D. K. CHADHA

SHRI SUBIR PAUL

Town and Countrv Planning Organization, New Delhi SHRLJ. B. KSHWCSAGAR. .


The Institution of Engineers (India), KolkataIn personal capacity (D-198, Defence Colony,

SHRt Y. RAMESH(Alternate)SHRI MAHW.HPALLWAL

PROF JITENDRASINGH

New Delhi 110024) SHRI RAWNDRABHAN

Member SecretaqSHRI SANIAY PANT

Joint Director (Civil Engineering)Joint Member Secretary

SHRI S. K. VERMADeputy Director (Civil Engineering)

(xix)

(J6$-,

Important Explanatory Note for Users of Code

In this Code, where reference is made to accepted standards in relation tomaterial specification, testing or other related information or where referenceis made to good practice in relation to design, constructional procedures orother related information, the Indian Standards listed at the end of theconcerned Parts/Sections may be used to the interpretation of these terms.

At the time of publication, the editions indicated in the above Indian Standardswere valid. All standards are subject to revision and parties to agreementsbased on the Parts/Sections are encouraged to investigate the possibility ofapplying the most recent editions of the standards.

In the list of standards given at the end of each Part/Section, the numberappearing in the first column indicates the number of the reference in thatPart/Section. For example:

a)

b)

c)

d)

e)

accepted standard [3( 1)] refers to the standard given at serial number1 of the list of standards given at the end of Part 3, that is IS 8888(Part 1) :1993 Guide for requirements of low income housing:Part 1 Urban area (jirst revision).good practice [6-5 A(22)] refers to the standard given at serial number22 of the list of standards given at the end of sub-section 5A of Part 6,,that is IS 4926:2003 Code of practice for ready-mixed concrete(second revision).accepted standard 7(9) refers to the standard given at serial number 9of the list of standards given at the end of Part 7, that is IS 2925:1984Specification for industrial safety helmets (second revision).accepted standard [8-5(4)] refers to the standard given at serial number2 of the list of standards given at the end of Section 5 of Part 8, thatis IS 14665 (Part 3/See 1 and 2) :2000 Electric traction lifts: Part 3Safety rules, Section 1 Passenger and goods lifts, Section 2 Servicelifts.good practice [9-2(3)] refers to the standard given at serial number 3of the list of standards given at the end of Section 2 of Part 9, thatis IS 8198 (Part 5) : 1984 Code of practice for steel cylinders forcompressed gases: Part 5 Liquefied petroleum gas (LPG) (j%irstrevision). ,,

( xxi)

INFORMATION FOR THE USERS

For the convenience of the users, this publication is also available in the following five groups of the NationalBuilding Code of India 2005 each incorporating the related Parts/Sections dealing with particular area of buildingactivity:

Group 1

Group 2

Group 3

Group 4

Group 5

For Development, BuildingPlanning and RelatedAspects

For Structural Design andRelated Aspects

For Construction RelatedAspects including Safety

For Aspects Relating toBuilding Services

For Aspects Relating toPlumbing Servicesincluding Solid WasteManagement

Part o:

Part 2:Part 4:Part 5:Part 10:

Part o:

Part 6:

Part o:

Part 7:

Part o:

Part 8:

Part o:

Part 9:

Integrated Approach Prerequisite for ApplyingProvisions of the CodeAdministration Part 3: Development Control RulesFue and Life Safety and General Building RequirementsBuilding MaterialsLandscaping, Signs and Outdoor Display StructuresSection 1 Landscape Planning and DesignSection 2 Signs and Outdoor Display Structures

Integrated Approach Prerequisite for ApplyingProvisions of the CodeStructural DesignSection 1Section 2Section 3

Section 4Section 5

Section 6Section 7

Integrated

Lo~ds, Forces and EffectsSoils and FoundationsTimber and Bamboo3A Timber3B BambooMasonryConcrete5A Plain and Reinforced Concrete5B Prestressed ConcreteSteelPrefabrication, Systems Building andMixed/Composite Construction7A Prefabricated Concrete7B Systems BuildingComposite Construction

Approach PrerequisiteProvisions of tie CodeConstructional Practices and Safety

Integrated Approach PrerequisiteProvisions of the CodeBuilding Services

and Mixed/

for Applying

for Applying

Section-lSection 2Section 3

Section 4

Section 5

Integrated

Lighting and VentilationEl~tric~l and Allied InstallationsAir conditioning, Heating and MechanicalVentilationAcoustics, Sound Insulation and NoiseControlInstallation of Lifts and Escalators

Approach Prerequisite for ApplyingProvisions of ~e CodePlumbing Services

Section 1 Water Supply, Drainage and Sanitation(including Solid Waste Management)

Section 2 Gas Supply

The information contained in different groups will essentially serve the concerned professionals dealing in therespective areas.

( xxii)

CONTENTS

PART O

PART 1

PART 2

PART 3

PART 4

PART 5

PART 6

PART 7

PART 8

PART 9

PART 10

INTEGRATED APPROACH PREREQUISITE FOR APPLYING PROVISIONS OFTHECODE

DEFINITIONS

ADMINISTRATION

DEVELOPMENTCONTROLRULES ANDGENERALBUILDINGREQUIREMENTS

FIRE ANDLIFE SAFETY

BUILDINGMATERIALS

STRUCTURALDESIGN

Section 1 Loads, Forces and EffectsSection 2 Soils and FoundationsSection 3 Timber and Bamboo

3A Timber3B Barnboo

Section 4 MasonrySection 5 Concrete

5A Plain and Reinforced Concrete5B Prestressed Concrete

Section 6 SteelSection 7 Prefabrication, Systems Building and Mixed/Composite

Construction7A Prefabricated Concrete7B Systems Building and Mixed/Composite Construction

CONSTRUCTIONALPRACTICESANDSAFETY

BUILDINGSERVICES

Section 1 Lighting and VentilationSection 2 Electrical and Allied InstallationsSection 3 Air Conditioning, Heating and Mechanical VentilationSection 4 Acoustics, Sound Insulation and Noise ControlSection 5 Installation of Lifts and Escalators

PLUMBINGSERVICESSection 1 Water Supply, Drainage and Sanitation (including Solid

Waste Management)Section 2 Gas Supply

LANDSCAPING,SIGNSANDOUTDOORDISPLAYSTRUCTURESSection 1 Landscape Planning and DesignSection 2 Signs and Outdoor Display Structures

Total Pages

. . . 12

. . . 16

. . . 24

. . . 64

. . . 88

. . . 40

. . . 104

. . . 48

. .. 50

. . . 24

. . . 44

.. . 90

. . . 6

. . . 8

. . . 22

. . . 12

. . . 70

. .. 48

. . . 68. . . 48

. . . 44

. . . 42

. . . 90

. . . 14

. . . 30

. . . 24

( xxiii)

(J6$-,

NATIONAL BUILDING CODE OF INDIA

PART O INTEGRATED APPROACH PREREQUISITE FORAPPLYING PROVISIONS OF THE CODE



FOREWORD

In order to provide safe and healthy habitat, careful consideration needs to be paid to the building constructionactivity. Building planning, designing and construction activities have developed over the centuries. Large numberof ancient monuments and historical buildings all over the world bear testimony to the growth of civilizationfrom the prehistoric era with the extensive use of manual labour and simple systems as appropriate to those agesto the present day mechanized and electronically controlled operations for designing and constructing buildingsand for operating and maintaining systems and services. In those days those buildings were conceptualized andbuilt by master builders with high levels of artisan skills. Technological and socio-economic developments inrecent times have led to remarkable increase in demand for more and more sophistication in buildings resultingin ever increasing complexities. These perforce demand high levels of inputs from professionals of differentdisciplines such as architecture, civil engineering, structural engineering, functional and life safety servicesincluding special aspects relating to utilities, landscaping, etc in conceptualization, spatial planning, design andconstruction of buildings of various material and technology streams, with due regard to various services includingoperation, maintenance, repairs and rehabilitation aspects throughout the service life of the building.

This Code, besides prescribing the various provisions, also allows freedom of action to adopt appropriate practicesand provides for building planning, designing and construction for absorbing traditional practices as well aslatest developments in knowledge in the various disciplines as relevant to a building including computer aidedandlor other modern sensors aided activities in the various stages of conceptualization, planning, designing,constructing, maintaining and repairing the buildings. India being a large country with substantial variationsfrom region to region, this Code has endeavored to meet the requirements of different regions of the country,both urban and rural, by taking into consideration factors, such as, climatic and environmental conditions,geographical terrain, proneness to natural disasters, ecologically appropriate practices, use of eco-friendly materials,reduction of pollution, protection and improvement of local environment and also socio-economic considerations,towards the creation of sustainable human settlements.

This Part of the Code dealing with integrated approach is being included for the first time. It gives an overalldirection for practical applications of the provisions of different specialized aspects of spatial planning, designingand construction of buildings, creation of services, and proposes an integrated approach for utilizing appropriateknowledge and experience of qualified professionals right from the conceptualization through construction andcompletion stages of a building project and indeed during the entire life cycle. The integrated approach shouldnot only take care of functional, aesthetic and safety aspects, but alSOthe operational and maintenance requirements.Also, cost optimization has to be achieved through proper selection of materials, techniques, equipmentinstallations, etc. Further, value engineering and appropriate management techniques should be applied to achievethe aim set forth for the purpose of construction of a building fully meeting the specified and implied needs ofspatial functions, safety and durability aspects, life and health safety, comfort, services, etc in the building.

The aim of the integrated approach is to get the maximum benefit from the building apd its services in terms ofquality, timely completion and cost-effectiveness. In the team approach which is an essential pre-requisite forintegrated approach, the aim clearly is to maximize the efficiency of the total system through appropriateoptimization of each of its sub-systems. In other words, in the team, the inputs from each of the professionaldisciplines have to be so optimized that the total systems efficiency becomes the maximum. It may be re-emphasized that maximizing the efficiencies of each sub-system may not necessarily assure the maximization ofthe efficiency of the total system. It need hardly to be stated that specified or implied safety will always getprecedence over functional efficiency and economy. Further, progressive approach such as that relating to theconcept of intelligent buildings would be best taken care of by the integrated approach as laid down in this Part.

Quality systems approach and certification thereunder covering the various dimensions brought out above maygo a long way in achieving the above goal of real integrated approach.

PART O INTEGRATED APPROACH 3

(J6$-,


PART O INTEGRATED APPROACH PREREQUISITE FORAPPLYING PROVISIONS OF THE CODE

1 SCOPE

,, This Part covers guidelines to be followed for judiciousimplementation of the provisions of various Parts/Sections of the Code.

2 TERMINOLOGY

2.0 For the purpose of this Part, the followingdefinitions and those given in Part 1 Definitions shallapply.

2.1 Authority Having Jurisdiction The Authoritywhich has been created by a statute and which, for thepurpose of administering the Code/Part, may authorizea committee or an official or an agency to act on itsbehalfj hereinafter called the Authority.2.2 Building Any structure for whatsoever purposeand of whatsoever materials constructed and every partthereof whether used as human habitation or not andincludes foundation, plinth, walls, floors, roofs,chimneys, plumbing and building services, fixedplatforms, VERANDAH, balcony, cornice or projection,part of a building or anything affixed thereto or anywall enclosing or intended to enclose any land or spaceand signs and outdoor display structures. Tents/SHAMIANAHS/PANDALS, tarpaulin shelters, etc,erected for temporary and ceremonial occasions shallnot be considered as building.

2.3 Owner Person or body having a legal interestin land and/or building thereon. This includes freeholders, leaseholders or those holding a sub-leasewhich both bestows a legal right to occupation andgives rise to liabilities in respect of safety or buildingcondition.

In case of lease or sub-leaseholders, as far as ownershipwith respect to the structure is concerned, the structureof a flat or structure on a plot belongs to the allottee/lessee till the allotment/lease subsists.

NOTE For the purpose of the Code, the word owner willalso cover the generally understood terms like client, user,etc.

3 GENERAL

3.1 Buildings, shall be classified as Residential,Educational, Institutional, Assembly, Business,Mercantile, Industrial, Storage and Hazardous ingroups and sub-division as classified in Part 4 Fireand Life Safety.

For further sub-classification of buildings and variousrelated provisions thereof with respect to administration;

PART O INTEGRATED APPROACH

development control rules and general buildingrequirements; building materials; fire and life safety;structural design; constructional practices and safety;building and plumbing services; and landscaping, signsand outdoor display structures, other parts/sections ofthe Code may be referred to.

3.2 The scope of various Parts/Sections of the Codewhich cover detailed provisions on different aspectsof development of land/building construction activity,are given in Annex A, with a view to providing anoverview for the users of the Code.

4 TEAM APPROACH

A land developmentlbuilding project comprises thefollowing major stages:

a) Location/siting,b) Conceptualization and planning,c) Designing and detailing,d) Construction/execution, ande) Maintenance and repair.

Each stage necessarily requires professionals of manydisciplines who should work together as a wellcoordinated team to achieve the desired productdelivery with quality, in an effective manner.

Appropriate multi-disciplinary teams need to beconstituted to successfully meet the requirements ofdifferent stages. Each team may comprise need basedprofessionals out of the following depending upon thenature, magnitude and complexity of the project:

a)b)c)d)e)f)g)h)j)k)m)n)P)q)r)s)

Architect,Civil engineer,Structural engineer,Elec~cal engineer,Plumbing engineer,Fire protection engineer,HVAC engineer,Environment specialist,Town planner,Urban designer,Landscape architect,Security system specialist,Interior designer,Quantity surveyor,Project/construction manager,Other subject specialist(s).

and

4.1 Design Team

In building projects various aspects like form; spaceplanning; aesthetics; fire and life safety; structuraladequacy; plumbing services; lighting and naturalventilation; electrical and allied installations; airconditioning, heating and mechanical ventilation;acoustics, sound insulation and noise control;installation of lifts and escalators; building automation;data and voice communication; other utility servicesinstallations; landscape planning and design; urbanplanning; etc need to be kept in view right at theconcept stage. The project requiring such multi-disciplinary inputs need a co-ordinated approachamong the professionals for proper integration ofvarious design inputs, For this, and to take care of thecomplexities of multi-disciplinary requirements, adesign team of professionals from required disciplinesshall be constituted at the appropriate stage. Here, it isdesirable that the multi-disciplinary integration isinitiated right from the concept stage. The team shallfinalize the plan. The composition of the team shalldepend on the nature and magnitude of the project.Design is an evolutionary and participatory process,where participation of owner constitutes a veryimportant input at all stages, and the same shall beensured by the design team.

To ensure proper implementation of the design, thedesign team, may be associated during the constructiotiexecution stage.

4.2 Project Management and ConstructionManagement Teams

The objective of project management or constructionmanagement is primarily to achieve accomplishmentof project in accordance with the designs andspecifications in a stipulated time and cost framework,with a degree of assurance prior to commencement andsatisfaction on accomplishment.

For large projects, separate teams of experiencedprofessionals from the required disciplines maybe constituted for project management and forconstruction management depending upon thecomplexities of the project. However, for smallerprojects these teams may be combined. The teams shallbe responsible for day-to-day execution, supervision,quality control, etc and shall ensure inter-disciplinaryco-ordination during the construction stage. The teamshall be responsible to achieve satisfactory completionof the project with regard to cost, time and quality.Some members of the design team may also beincluded in the project management team and/orassociated actively during the project execution stage.It is important that leaders and members of projectmanagement/construction management teams,

6

depending on the size and complexity of the project,are carefully selected considering their qualification,experience and expertise in these fields.

4.3 Operation and Maintenance Team

Operation, maintenance and repairs also require amulti-disciplinary approach to ensure that all therequirements of the users are satisfactorily. met. Duringmaintenance and repairs, the jobs requiring inter-disciplinary co-ordination have to be executed in sucha manner as not only to cause least inconvenience tothe user but also to ensure that there is no mismatch ordamage to the structure, finishings, fittings and fixtures.For carrying out routine maintenance/repair jobs,utilization of the services of trained technicianspreferably having multi-disciplinary skills should beencouraged.

Special repairs, rehabilitation and retrofitting arespecialized jobs which demand knowledge of theexisting structure/installations. Association ofconcerne# specialists may be helpful for these works.

The Operation and Maintenance Team may also beknown as Asset Management or Estate ManagementTeam.

5 PLANNING, DESIGNING AND DEVELOPMENT

5.1 The main functions of design team (see 4.1)constituted for the planning, designing and development,are as under

a)

b)c)d)

e)f)

@

h)

j)

k)

m)

Formalization of design brief in consultationwith the owner.Site investigationhrvey.Preparation of alternative concept designs.Selection of a concept in consultation withand with the consent of owner.Sizing the system.Development of design, covering :1) Integration of architecture, structure and

services,2) Synthesis of requirements of each

discipline, and3) Interacticm with each other and with the

owner.

Preparation of preliminary designs anddrawings and obtaining owners approval,Preparation of preliminary cost estimates forapproval of owner,Preparation of work-breakdown structure andprogramme for pre-construction activities.Assisting client to obtain approvals of theAuthority.Preparation of detailed specification and

NATIONALBUILDINGCODE OF INDIA

Bn)

P)

!0r)s)

construction working drawings with integrationof engineering inputs of all concerneddisciplines.Preparation of detailed design of eachdiscipline for various services.Peer reviewlproof checking of the drawingsldesigns in case of important projects,depending upon their complexity andsensitivity.Preparation of detailed cost estimate.Obtaining final approval of client.Preparation of bill of quantities, specificationsand tender documents.

5.2 The following considerations, as may beapplicable to the project, may be considered duringplanning, notwithstanding other relevant aspectsspecifically prescribed in concerned parts/sections ofthis Code; these considerations in general are with theobjective of addressing to the important issues likeenvironmental protection, energy conservation,cultural issues, creating barrier free built-environment,safety aspects, etc, all of these leading towardssustainable development, and have to be applied withdue regard to the specific requirements of size and typeof project:

a)

b)

c)

d)

e)

f-)

g)

h)

Geoclimatic, geological and topographicalfeatures.Varied sociological pattern of living in thecountry.Effective land use to cater to the needs of thesociety in a most convenient manner.Modular planning and standardization totake care of future planning giving dueconsideration to the specified planningcontrols.Emphasis on daylight utilization, naturalventilation, shielding, and window areaand its disposition; daylighting to besupplemented with an integrated design ofartificial lighting.Optimum utilization of renewable energysources duly integrated in the overall energysystem design; with consideration of activeand passive aspects in building designincluding thermal performance of buildingenvelope.Rain water harvesting, and use of appropriatebuilding materials considering aspectslike energy consumption in production,transportation and utilization, recyclability,etc for promoting sustainable development.Requisite mandatory provisions forhandicapped persons.


0

k)

m)

n)

P)@r)

s)t)

u)

v)

w)

Y)

z)

Acoustical controls for buildings and thesurroundings.Promotion of artwork in buildings, speciallybuildings of importance.Due cognizance of recommendations of theArcheological Survey of India with regard tonational monuments and construction inarchaeologically important sites.Due cognizance of relevant provisions ofapplicable coastal zone regulation act.Conservation of heritage structures and areas.Environmental and social impact analysis.Design of services with emphasis on aspectsof energy efficiency, environment friendlinessand maintainability.Integrated waste management.Voice and data communication, automationof building services, and intelligent building;use of security and surveillance system inimportant and sensitive buildings, such as,access control for the people as well as forvehicle.Interlinking of fire alarm system, fireprotection system, security system, ventilation,electrical systems, etc.Analysis of emergency power, standby powerrequirement and captive power systems.Cost optimization through techniques likevalue engineering.Adoption of innovative technologies givingdue consideration to constructability andquality aspects.Instrumentation of buildings and monitoringand use of information so generated to effectimprovements in planning and design offuture building projects.

6 CONSTRUCTION/EXECUTION(ACTUALIZATION)

6.1 The main functions of the teams (see 4.2))

constituted for Project Management/ConstructionManagement may be, to :

a)b)

c)d)

e)o

@h)

specify criteria for selection of constructors;specify quality control, quality audit system t

and safety system;short-list constructors;have pre-bid meetings with the intending

~,

constructors;

receive and evaluate tenders;select constructors;execution and supemision;monitor quality, time and cost control;

7

ANNEX A

(Clause 3.2)BRIEF DETAILS OF THE COVERAGE OF VARIOUS PROVISIONS UNDER

DIFFERENT OTHER PARTS/SECTIONS OF THIS CODE

A-1 PART 1 DEFINITIONS

It lists the terms appearing in all the Parts/Sections ofthe Code. However, some common definitions arereproduced in this Part also.

A-2 PART 2 ADMINISTRATION

It covers the administrative aspects of the Code, suchas applicability of the Code, organization of buildingdepartment for enforcement of the Code, procedurefor obtaining development and building permits, andresponsibility of the owner and all professionalsinvolved in the planning, design and constructiori ofthe building.

A-3 PART 3 DEVELOPMENT CONTROL RULESAND GENERAL BUILDING REQUIREMENTSIt covers the development control rules and generalbuilding requirements for proper planning and designat the layout and building level to ensure health safety,public safety and desired quality of life.

A-4 PART 4 FIRE AND LIFE SAFETY

It covers the requirements for fire prevention, lifesafety in relation to fire, and fire protection ofbuildings. The Code specifies planning andconstruction features and fire protection features forall occupancies that are necessary to minimize dangerto life and property.

A-5 PART 5 BUILDING MATERIALS

It covers the requirements of building materials andcomponents, and criteria for accepting new oralternative building materials and components.

A-6 PART 6 STRUCTURAL DESIGN

This Part through its seven sections provides forstructural adequacy of buildings to deal with bothinternal and external environment, and provideguidance to engineerslstructural engineers for variedusage of material/technology types for buildingdesign.

A-6.1 Section 1 Loads, Forces and Effects

It covers basic design loads to be assumed in the designof buildings. The live loads, wind loads, seismic loads,snow loads and other loads, which are specified therein,are minimum working loads which should be takeninto consideration for purposes of design.


A-6.2 Section 2 Soils and Foundations

It covers structural design (principles) of all buildingfoundations, such as, raft, pile and other foundationsystems to ensure safety and serviceability withoutexceeding the permissible stresses of the materials offoundations and the bearing capacity of the supportingsoil.

A-6.3 Section 3 Timber and Bamboo

A-6.3.1 Section 3A Timber

It covers the use of structural timber in structures orelements of structures connected together by fasteners/fastening techniques.

A-6.3.2 Section 3B Bamboo

It covers the use of bamboo for constructional purposesin structures or elements of the structure, ensuringquality and effectiveness of design and constructionusing bamboo. It covers minimum strength data,dimensional and grading requirements, seasoning,preservative treatment, design and jointing techniqueswith bamboo which would facilitate scientificapplication and long-term performance of structures.It also covers guidelines so as to ensure properprocurement, storage, precautions and designlimitations on bamboo.

A-6.4 Section 4 Masonry

It covers die structural design aspects of unreinforcedload bearing and non-load bearing walls, constructedusing various bricks, stones and blocks permitted inaccordance with this Section. This, however, alsocovers provisions for design of reinforced brick andreinforced brick concrete floors and roofs. It alsocovers guidelines regarding earthquake resistance oflow strength masonry buildings.

A-6.5 Section 5 Concrete

A-6.5.1 Section 5A Plain and Reinforced ConcreteIt covers the general structural use of plain andreinforced concrete.

A-6.5.2 Section 5B Prestressed Concrete

It covers the general structural use of prestressedconcrete. It covers both work carried out on site andthe manufacture of precast prestressed concreteunits.

9

A-6.6 Section 6 Steel

It covers the use of structural steel in general buildingconstruction including the use of hot rolled steelsections and steel tubes.

A-6.7 Section 7 Prefabrication, Systems Buildingand Mixed/Composite Construction

A-6.7.1 Section 7A Prefabricated ConcreteIt covers recommendations regarding modularplanning, component sizes, prefabrication systems,design considerations, joints and manufacture, storage,transport and erection of prefabricated concreteelements for use in buildings and such relatedrequirements for prefabricated concrete.

A-6.7.2 Section 7B Systems Building and Mixed/Composite Construction

It covers recommendations regarding modularplanning, component sizes, joints, manufacture,storage, transport and erection of prefabricatedelements for use in buildings and such relatedrequirements for mixed/composite construction.

A-7 PART 7 CONSTRUCTIONAL PRACTICESAND SAFETY

It covers the constructional planning, management andpractices in buildings; storage, stacking and handlingof materials and safety of personnel during constructionoperations for all elements of a building and demolitionof buildings. It also covers guidelines relating tomaintenance management, repairs, retrofitting andstrengthening of buildings. The objective can be bestachieved through proper coordination and working bythe project management and construction managementteams.

A-8 PART 8 BUILDING SERVICES

This Part through its five elaborate sections on utilitiesprovides detailed guidance to concerned professionals/utility engineers for meeting necessary functionalrequirements in buildings.

A-8.1 Section 1 Lighting and Ventilation

It covers requirements and methods for lighting andventilation of buildings.

A-8.2 Section 2 Electrical and Allied Installations

It covers the essential requirements for electrical andallied installations in buildings to ensure efficient useof electricity including safety from fire and shock. ThisSection also includes general requirements relating tolightning protection of buildings.

A-8.3 Section 3 Air Conditioning, Heating andMechanical Ventilation

This Section covers the design, construction andinstallation of air conditioning and heating systems andequipment installed in buildings for the purpose .,

of providing and maintaining conditions of airtemperature, humidity, purity and distribution suitablefor the use and occupancy of the space.

A-8.4 Section 4 Acoustics, Sound Insulation andNoise Control

It covers requirements and guidelines regardingplanning against noise, acceptable noise levels and therequirements for sound insulation in buildings withdifferent occupancies. ~

A-8.5 Section 5 Installation of Lifts andEscalators

It covers the essential requirements for the installation, ~operation, maintenance and also inspection of lifts(passenger lifts, goods lifts, hospital lifts, service liftsand dumb-waiter) and escalators so as to ensure safeand satisfactory performance.

!A-9 PART 9 PLUMBING SERVICES

This Part through its two sections gives detailedguidance to concerned pro fessionalslplumbingengineers with regard to plumbing and other relatedrequirements in buildings.

A-9.1 Section 1 Water Supply, Drainage andSanitation (Including Solid Waste Management)It covers the basic requirements of water supply forresidential, business and other types of buildings,including traffic terminal stations. This Section alsodeals with general requirements of plumbing comectedto public water supply and design of water supplysystems.

It also covers the design, layout, construction andmaintenance of drains for foul water, surface waterand sub-soil water and sewage; together with allancillary works, such as connections, manholes andinspection chambers uied within the building and frombuilding to the connection to a public sewer, privatesewer, individual sewage-disposal system, cess-pool,soakaway or to other approved point of disposal/treatment work. It also includes the provisions on solidwaste management.

A-9.2 Section 2 Gas Supply

It covers the requirements regarding the safety of personsand property for all piping uses and for all types of gasesused for fuel or lighting purposes in buildings.

10 NATIONAL BUILDING CODE OF INDIA

A-10 PART 10 LANDSCAPING, SIGNS AND A-10.2 Section 2 Signs and Outdoor DispIayOUTDOOR DISPLAY STRUCTURES Structures

A-10.1 Section 1 Landscape Planning and Design It covers the requirements with regard to public safety,

It covers requirements of landscape planning and structural safety and fire safety of all signs and outdoor

design with the view to promoting quality of outdoor display structures including the overall aesthetical

built environment and protection of land and its aspects of imposition of signs and outdoor display

resources. structures in the outdoor built environment.

PART O INTEGRATED APPROACH 11

(J6$-,


PART 1 DEFINITIONS



FOREWORD

Each Part or Section of the National Building Code gives the definitions of the special terms used in it. Thesedefinitions may be found in the clause Terminology normally placed immediately after the Scope in eachPart/Section. However, users may find this part very convenient for reference as it gives the alphabeticallyarranged list of terms defined in all the parts along with the location of the deilnition.

PART 1 DEFINITIONS 3

r,>-,*.NATIONAL BUILDING CODE

PART 1 DEFINITIONS

1 SCOPE

This Part lists the terms appearing in all the Parts/Sections of the National Building Code of India. Theterms have been arranged in their alphabetical order.The Part(s) /Section(s) in which these terms areappearing, have been indicated against the terms.

However, some common definitions are reproducedin this part also; the definitions being placedimmediately below the term concerned.

A

Abandoned Sign Part 10/Section 2Access Part 3Access Panel Part 9/Section 1Accessory Part 8/Section 2Accessoiy Use Part 2, Part 3

Any use of the premises subordinate to the principaluse and customarily incidental to the principal use.

Advertising Sign Part 10/Section 2Air Change per Hour Part 8/Section 1Air Conditioning Part 81Section 3Air Gap Part 9/Section 1Air-l?reak Part 9/Section 1Alteration Part 2, Part 3

A change from one occupancy to another, or astructural change, such as an addition to the area orheight, or the removal of part of a building, or anychange to the structure, such as the construction of,cutting into or removal of any wall, partition, column,beam, joist, floor or other support, or a change to orclosing of any required means of ingress or egress or achange to the fixtures or equipment.

Alternating Current Variable Voltage (ACW) Control Part 8/Section 5Alternating Current Variable Voltage VariableFrequency (A CWVF) Control Rut 81Section 5Altitude (E)) Part 8/Section 1Ambient Noise Part 8/Section 4Anatomical Purpose Definitions for Engineers Part 61Section 3BApparatus Part 8/Section 2Appliance Part 8/Section 2Appliance Valve Part 91Section 2Approved Part 2, Part 3, Part 10/Section 2Approved by the Authority having jurisdiction.Area of Special Control Part 10/Section 2

PART 1 DEFINITIONS

Atmospheric Pressure Part 81Section 3Audible Frequency Range Part 81Section 4Authority Having Jurisdiction Part 2, Part 3,Part 6/Section 7B, Part 9/Section 1, Part 9/Section 2,Part 10/Section 2

The Authority which has been created by a statute andwhich, for the purpose of administering the Code/Pint,may authorize a committee or an official or an agencyto act on its behalfl hereinafter called the Authority.

Automatic Fire Detection and Alarm System Part 4Automatic Operation Part 81Section 5Automatic Sprinkler System Part 4Available Head Part 9/Section 1Avenue Part 10/Section 1A-Weighted Sound Pressure Level, LPA Part 81Section 4A-Weighted Sound Pressure, pA Part 8/Section 4Axial Flow Fan Part 8/Section 1Azimuth ($) Part 8/Section 1

B

Back Fill Part 61Section 2Back Siphonage Part 9/Section 1Back to Back Cluster Part 3Back Up Part 9/Section 1Backfiow Prevention Device Part 91Section 1Backjlow Part 9/Section 1Background Noise Part 8/Section 4Balcony Part 3Baluster Part 8/Section 5Balustrade Part 8/Section 5Bamboo Part 61Section 3BBamboo Borer (Bamboo GHOOIV) Part 6/Section 3BBamboo Clump Part 61Section 3BBamboo Culm Part 6LSection 3BBamboo Mat Board Part 6/Sedtion 3BBanner Part 10/Section 2Banner Sign Part 10ISection 2Barrel Part 9/Section 1Base Part 9/Section 1Basement or Cellar Part 3Basic Module Part 6/Section 7A, Part 61Section 7BBasic or Ultimate Stress Part 61Section 3,Part 6/Section 3BBatter Pile (Raker Pile) Part 61Section 2Battery of Fixtures Part 91Section 1

5

,---

&...

... . .

Beam Part 6/Section 3BBeam, Built-Up-Laminated Part 6/Section 3Beam, Glued-Laminated Part 61Section 3Bearing Capacity, Safe Part 6/Section 2Bearing Capacity, Ultimate Part 61Section 2Bearing Pile Part 61Section 2Bearing Pressure, Allowable (Gross or Net) Part 61Section 2Bearing Pressure, Allowable Part 61Section 2Bearing Pressure, Safe Part 61Section 2Bed Block Part 61Section 4Bedding Part 91Section 1Benching Part 91Section 1Bond Part 6/Section 4Bored Cast in-situ Pile Part 61Section 2Bored Compaction Pile Part 61Section 2Bored Pile Part 61Section 2Bottom Car Clearance Part 81Section 5Bottom Car Runby Part 81Section 5Bottom Coutnerweight Runby Part 81Section 5Boucherie Process Part 61Section 3BBranch Part 91Section 1Branch Soil Pipe (BSP) Part 9Eection 1Branch Soil Waste Pipe (BSWP) Part 91Section 1Branch Ventilating Pipe (BVP) Part 91Section 1Branch Waste Pipe (BWP) Part 9LSection 1Break-in Part 81Section 4Breaking Strength Part 61Section 3BBreak-out Part 81Section 4Brightness Ratio or Contrast Part 81Section 1Broad Band Noise Part 8fSection 4Buffer Part 10/Section 1, Part 8/Section 5Building (House) Drain Part 9/Section 1Building (House) Drain-Combined Part 91Section 1Building (House) Drain-Sanita~ Part 9/Section 1Building (House) Drain-Stem Part 91Section 1Building (House) Sewer Part 9/Section 1Building (House) Sub-Drain Part 91Section 1Building (House) Trap Part 91Section 1Building Part 2, Part 3, Part 4

Any structure for whatsoever purpose and ofwhatsoever materials constructed and every partthereof whether used as human habitation or not andincludes foundation, plinth, walls, floors, roofs,chimneys, plumbing and building services, fixedplatforms, verandah, balcony, cornice or projection,part of a building or anything affixed thereto or anywall enclosing or intended to enclose any land or spaceand signs and outdoor display structures. Tents/

SHAMIANAHS, tarpaulin shelters, etc, erected fortemporary and ceremonial occasions with thepermission of the Authority shall not be considered asbuilding.

Building, Height of Part 2, Part 3, Part 4The vertical distance measured, in the case of flat roofsfrom the average level of the ground around andcontiguous to the building or as decided by theAuthority to the terrace of last livable floor of thebuilding adjacent to the external walls; and in the caseof pitched roofs, up to the point where the externalsurface of the outer wall intersects the finished surfaceof the sloping roof, and in the case of gables facing theroad, the mid-point between the eaves level and theridge. Architectural features serving no other functionexcept that of decoration shall be excluded for thepurpose of measuring heights.

Building Line Part 2, Part 3, Part 10/Section 2

The line up to which the plinth of a building adjoininga street or an extension of a street or on a future streetmay lawfully extend. It includes the lines prescribed,if any, in any scheme. The building line may changefrom time-to-time as decided by the Authority.

Buildings Related Illnesses (BRI) Part 81Section 3Bunched Part 8/Section 2

cCabin Part 3Cable Part 8/Section 2Cable Armoured Part 81Section 2Cable, Crossed Linked Insulated Part 81Section 2Cable, Flexible Part 8/Section 2Cable, Lead-Covered Part 81Section 2Cable, Metal-Sheathed Part 81Section 2Cable, PVC-Insulated Part 8/Section 2Cable, PVC-Sheathed Part 81Section 2Cable, Tough Rubber-Sheathed (Cable, TRS) Part 8/Section 2Cable, Weathe~roof Part 81Section 2Cable, XLPE Part tMSection 2Call Indicator Part 81Section 5Candela (cd) Part 81Section 1Canopy Part 3Canopy Sign Part 10/Section 2Car Bodywork Part 81Section 5Car Door Electric Contact Part 8K3ection 5Car Pla#orm Part 8/Section 5Car Switch Operation Part 81Section 5Carframe Part 81Section 5Carpet Area Part 3

6 NATIONAL BUILDING CODE OF INDIA

7-

Ceiling Rose Part 8/Section 2Cell Part 6/Section 3BCellular Concrete Part 6/Section 7B, Part 6/Section 7ACellulose Part 6/Section 3BCentral Field Part 81Section 1Centre Internode Part 6/Section 3BCentr@gal Fan Part 81Section 1Cesspool Part 9/Section 1Chair Part 91Section 1Channel Part 9/Section 1Characteristic Load Part 61Section 3BCharacteristic Strength Part 6/Section 3BCheck Part 6/Section 3CHHAJJA Part 3Chimney Part 3Chowk or Courtyard Part 3Chowk, Inner Part 3Chowk, Outer Part 3Chute Part 9/Section 1Circuit Part 8/Section 2Circuit Breaker Part 81Section 2Circuit Final, Sub Part 8/Section 2Cistern Part 9/Section 1Clay Part 61Section 2Clay, Firm Part 61Section 2Clay, Soft Part 61Section 2Clay, Stiff Part 61Section 2Cleaning Eye Part 91Section 1Clear Design Sky Part 8/SectionClear Waste Water Part 91Section 1Clearance Part 8/Section 5Cleat Part 8/Section 2Cleavability Part 6/Section 3BCleavage Part 6/Section 3BClimber (CreeperNine) Part 10ISection 1Closed Clusters Part 3Closed Sign Part 10/Section 2Cluster Part 3Cluster Court Town House Part 3Cluster Plot Part 3Collapse Part 61Section 3BCollection Chamber Part 91Section 1Column Part 61Section 3BColumn, Pier and Buttress Part 61Section 4Columnar Part 10/Section 1Combination Sign Part 10ISection 2Combustible Material Part 4, Part 10ISection 2

PART 1 DEFINITIONS

The material which either burns itself or adds heat to afire, when tested for non-combustibility in accordancewith accepted standard [4(1)].Common Rafier Part 61Section 3BCommunication Pipe Part 91Section 1Components Part 61Section 7A, Part 6/Section 7BComposite Members Part 6/Section 7A, Part 6/Section 7BCompression Wood Part 61Section 3Conductor of a Cable or Core Part 8/Section 2Conductor, Aerial Part 8/Section 2Conductor, Bare Part 8/Section 2Conductor, Earthed Part 81Section 2Conductor, Insulated Part 8/Section 2Connection Part 9/Section 1Connector Part 8/Section 2Connector Box or Joint Box Part 81Section 2Connector for Portable Appliances Part 8/Section 2Conservation (Preservation) Part 10/Section 1Consumer Part 9/Section 1Consumers Pipe Part 9/Section 1Consumers Terminals Part 81Section 2Contaminants Part 8/Section 1Contour Part 10/Section 1Contour Interval Part 10/Section 1Contour Line Part 10/Section 1Control Part 8/Section 5Conventional Symbols Part 8/Section 2Conversion Part 2Cooking Alcove Part 3Cord, Flexible Part 8/Section 2Core of a Cable Part 8/Section 2Counterweight Part 81Section 5Cover Part 91Section 1Covered Area Part 3, Part 4

Ground area covered by the building immediatelyabove the plinth level. The area covered by thefollowing in the open spaces is excluded from coveredarea:

a)

b)

c)

garden, rockery, well and well structures,plant nursery, waterpool, swimming pool (ifuncovered), platform round a tree, tank,fountain, bench, CHABUT~ with open topand unenclosed on sides by walls and thelike;drainage culvert, conduit, catch-pit, gully pit,chamber, gutter and the like;compound wall, gate, unstoreyed porch andportico, slide, swing, uncovered staircases,

7

-.

d)

ramp areas covered by CHHAJJA and the like;andwatchmans booth, pumphouse, garbageshaft, electric cabin or sub-stations, and suchother utility structures meant for the servicesof the building under consideration.NOTE For the purpose of this part, covered areaequals the plot area minus the area due for open spacesin the plot.

Crookedness Part 61Section 3BCross Wall Part 6/Section 3BCross-Connection Part 9/Section 1Cross-Sectional Area of Masonry Unit Part 61Section 4Cross-Talk Part 8/Section 4Crown of Trap Part 9/Section 1Cul-de-sac Cluster Part 3Curtain Wall Part 61Section 4Curvature Part 61Section 3BCustomers/Consumers Connection Part

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National Building Code 2005