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है”ह”ह

IS 1200-9 (1973): Method of measurement of building andcivil engineering works, Part 9: roof covering (includingcladding) [CED 44: Methods of Measurement of Works of CivilEngineering]

IS : 1200 (Part IX) - 1973(Reaffirmed 2007)

Indian StandardMETHOD OF MEASUREMENT OF

BUILDING AND CIVIL ENGINEERING WORKS

PART IX ROOF COVERING (INCLUDING CLADDING)

( Second Revision)Tenth Reprint JUNE 2008

(Incorporanng Amendment No.1)

UDC 69.003.12 : 69.024.15

© Copyright 1978B U R E A U O F I N D I A N S T A N D A R D S MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Gr 3 March 1973

data12Line

IS I J»O (Part IX)-1973

Indian StandardMETHOD OF MEASUREMENT OF

BUILDING AND CIVIL ENGINEERING WORKS

PART IX ROOF COVERING (INCLUDING CLADDING)

(Second Revision)Civil Works Measurement Sectional Committee, BDG 44

CluJinnd"SHal v. R. V AJSR

M,mbnsSUBI N. P. ACHABYY.&.SURI R. G. ANA.NDASSISTANT ADVI8BB (PRE)SaB] B. G. BALJ'EJtAB8Ha] P. L. BHASINCHIEF ENGINEERCHID' ENGINEEB (H. & B)

RqwUltdi.,Bureau orPublic Enterprises, Ministry ofYmance

Calcutta Port TrustIndian Institute of Architects, BombayMinistry of Health & Family PlanningHindustan Steel Works Construction Ltd, CalcuttaInstitute of Surveyors, New DelhiHeavy Engineering Corporation Ltd, RanchiPublic Works Department, Government of Andhra

PradeshS1JJ'EBINTENDI~O ENGINE!:B

( PLANNING .& DB8IGN) (Altn'1lat,)SaBI R. K. CRoun'RRY Bhakra Management Board, Nanga} Township

SHBI P. S. RAO ( Alknaal, )SSBI V. B. DESAI Hindustan Construction Co Ltd, BombayDIBEOTOR (RATES 4!t CoSTS) Central Water &. Power Commission, New Delhi

DEPUTY DIBZcrOB (RATES8t COSTS) (AllmatJl,)

DIBBCTOR, IRI Irrigation Department, Government of UttarPradesh

SUBI P. K. DOCTOB Concrete Association of India) BombaySaRI D. S. VI~AYBNDBA (AltmuJtt)

ExEOUTIVE ENOINBEB (PLAlOfING Ministry of RailwafI&. DESIGNS) NOB T B E B NRAILWAY

SSBI P. N. GADI Institution of Engineen (India), CalcuttaSSBI W.J. daGAJI.&. Bombay Port TrustSUBI V. G. HBoDJI: National Buildings Organization, New Delhi

SU:a1 J. P. SRAB• .&. (.AI''''''',)SHal G. V. HDtOO:a.ANJ Gammon India Ltd, Bombay

~ CopyriJl'" 1978'BITREAlJ OF INDIAN STANDARDS

This publication is protected under the Ifldia Copyri,1aI At' (XIV of 1957) andreproduction in whole or in part by any means except with written permiaaion or thepublisher .hall be deemed to be an in&in~ment of copyright under the aid Act.

ISI~ (Part 1X)-I97S

( c.n"",tlfr"'" /HJ,. 1)

Buildinp and CommunicatiOD Department, Govem-ment of Maharuhtra

Director OeDeral, lSI (&-qIi&io M6mHr )S..1 D. A3ITBA SIKB&,Director (Civ EDa )

M.".".,s &/Jr,..,UwSHal H. K. KHOSLA Irr~tiODDepartment, Governmeat of HaryanaSa&1 KalSKAN KUKAB Mimstry of Shipping It Tra.port ( Iloada Wing )

SlIBJ L. R. KADIYALI (A.lImtt*)S••I K. K. MADBOJt Builders AuociatioD ollodia, Bombay

SSBI MUJt18B Gurr.& (AltWMU)SaBl R. S. MUBTBY Engineer-in..Qhief'1 Branch, Army Headquarten,

New DelhiSRBI V. V. SA.m..... (All"""')

Sam T. S. MUBTBY National Project CODItructioD Corporation,New Delhi

SlUt! K. N. TAX&TA (AlImMII)8JrBI C. B. PATBL M. N. Daltur & Co Private Ltd, Calcutta

SR.l B. C. PATBL (.dll.rltllll)5..1 Y. G. PA.TEL Patel Engineering Co Ltd. Bombay

SKat C. K. CsoJt8m (AlImtIJU)Sam A. A. RAI'O' HiDdultan Steel Ltd, Rancbi

SJlBI S. Sannv.i. • .uf ( A.lImtIJU )S"J K. G. SALVI HiDduatan Housing Factory Ltd, New Delhi

8lmI G. B. SINOH ( All.,.,.,.)SBCllETABY Central Board of Irrigation and PowerJ New DelhiDB R. B. SINOH Banaras Hindu University, VaranasiStTPBJWfTD'DINQ St1JIVKYOB ow Central Public Worka Department (Aviation),

WOBE.8 (AVIATION) New DelhiSUBVBYOB o. ~OBK. (1)

AT'rAOBltD TO SUPJIBIlf-~ENDINQ SuaVEYOB OYWOBK8 (AVIATION) (AlImuzl,)

S11PJ:J&IN"l'.BND11fQ St1BVBYO. 0.. Central Public Worb Department. New DelhiWOaK8 (I)

StTBVltYOB 0., WOllES (I)ATTAOHJDD TO Sup.8BUf-~IJrQ StTBV&Yo. (d'Wo:ue (I) (Altml4ll)

TJ:CJDflO.A.L ExAKnma

~

SBJUK.. M. MA~raaA8iataat Director (CiY Baa), lSI

2

B,l_ (Part 1X)-1t73

Indian StandardMETHOD OF MEASUREMENT OF

BUILDING AND CIVIL ENGINEERING WORKSPART IX ROOF COVERING (INCLUDING CLADDING)

(Second Revision J

o. FOREWORD0.1 This Indian Standard (Part IX) (Second Revision) was adopted bythe Indian Standards Institution on 16 February 1973, after the draftfinalized by the Civil Works Measurement Sectional Committee had beenapproved by the Civil Engineering Division Council.

0.2 Measurement occupies a very important place in the planning andexecution of any civil engineering work from the time of first estimates tothe final completion and settlement of payments for a project. Methodsfollowed for measurement are not uniform and considerable differencesexist among practices followed by different construction agencies andalso among various Central and State Government departments. Whileit is recognized that each system of measurement has to be specificallyrelated to administrative and financial organizations within a departmentresponsible for the work, a unification of various systems at technical levelhas been accepted as very desirable specially as it permirs a wider rangeof operation for civil engineering contractors and eliminates ambiguitiesand misunderstandings of various systems followed.

0.3 Among various civil engineering items, measurement of buildings 'wasthe first to be taken up for standardization and this standard havingprovisions relating to building work was first published in 1958 and wasrevised in 1964.

0.4 In the course of usage of this standard by various construction agen-cies in the country, several clarifications and suggestions for modificationswere received and as a result of study, the technical committee responsi-ble for this standard decided that its scope besides being applicable tobuildings should be expanded to cover method of measurement of civilengineering works like industrial and river valley projects.

oeS Since different trades are not related to one anothert the SectionalCommittee decided that each trade as given in IS: 1200-1964· shall be

·Metbod of measurement of building worb ("'Diud).

3

ISI~ (PanIX)-lI7S

issued separately as a dift'ereIlt part. This will also be helpful to u~enin using the specific standard.

0.5.1 Pfhis part coven method of measurement 4)f roof eovttilt~( including cladding) applicable to buildings as well as to civil eng,,~r.-~t ...ing works.

0.6 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value, observed or calculated,expressing the result of a measurement, shall be rounded off in accord-ance with IS: 2-1960*. The number of sign~cant places retained inthe rounded off value should be the same as that of the specified valuein this standard.

1. SCOPE1.1' This standard (Part IX) covers the method of measuremmt of roof

coVCring (including cladding) for buildings and civil engineering worb.

2. GENERAL RULES

2.1 Clabbial olltem- - Items may be clubbed together provided thatthe break-up of the clubbed items is agreed to be on the basis of thedetailed description of the items stated in this standard.

2.2 Booldac of Dlme..1.... - In booking dimensions, the order shallbe consistent and generally in the sequence of length, breadth or widthand height or depth or thickness.

2.3 DeIIcdpdoa 01 Ite1D8 - The description ofeach item shall, unlessotherwise stated, be held to include, where necessary, canveyance and -,delivery, handling, unloading, storing, fabrication, hoisting, all labourfor finishing to reCfuired shape and size.

2.4M~u - Unless otherwise stated hereinafter all workslball be measured net in decimal system, as fixed in its place, as given in1.4.1 and"2.4.2 4

2.4.1 Dimension shall be measured to the nearest 0·01 m.

2.U Areas shall be worked out to the nearest 0·01 mi.

2.5 Work executed in the snow shall be measured separately.

-Rules for roundiDl oWDwn~l val... ( rm.u).

4

IS 11200 (Part IX) ·1973

2.8 Bib. of QJaaadtln - The bills of quantities shall fully describe thematerials and workmanship, and accurately represent the work to beexecuted.

2. '1 The superficial area of roof coverings and cladding as laid shall bemeasured on the flat in square metres without allowance for laps andcorrugations, if any.

2.7.1 Portions of roof covering overlapped by ridge or hip, etc, shall beincluded in the measurements of the roof except where otherwisestated. fII •

2.8 Any opening not exceeding 0·4 rnl shall not be deducted and form-ing such openings requiring cutting shall be enumerated.

2.' Any opening exceeding 0-4 m l shall be deducted and cutting requi-red shall be measured in running metres,

2.10 Cutting across corrugations shall be measured on the flat and notgirthed.

2.11 No additions shall be made for laps cut through.

2.12 Sheeting curved or bent to curvature shall be measured separately.

2.13 'The woodwork and steelwork shall be measured separately underthe relevant part of this standard.

3. METAL SHEET ROOFINGS

3.1 The type of sheeting shall be described stating the thickness. Theside and end laps shall be stated.

3.2 If the side and end laps are bolted or riveted, it shall be so statedspecifying the spacing ofthe bolts or rivets.

3.3 Nainital pattern sheet-roofing shall be fully described and measuredseparately and shall include all rolls, clips, etc. Measutements shall betaken on the flat and not girthed.

3.4 Ridges, hips and valleys shall be measured along the central line inrunning metres stating the girth and flashings in square metres. Thelaps, passings and method of fixing shall be described.

3.4.1 The laps along the length of the ridges, hips, valleys or flashingpieces shall not be measured separately. ~

t. ASBESTOS CEMENT ROOFING

-1.1 The type of sheeting shall be described stating the thickness.

IS : 1200 ( Part IX) ·1973

4.1.1 The side and end laps shall be stated and the method of fixingdescribed. If required to be fixed in accordance with maker's instruc-tions, it shall be so stated.

4.2 Ridges and hips shall be described stating the laps and measured inrunning metres along the central line; where in two pieces, these shall bemeasured as one length.

4.3 Ridge finials, cowl type ventilators, curved barge boards for north-light curves, roof lights, expansion joints for ridges and expansion jointsfor northlight curves shall be described and enumerated. Ridge finialswhere in two interlocking pieces, shall be measured as one number.

4.4 Eaves filler pieces, aprons, barge boards, corner pieces, flashings,louvers, northlight and ventilator curves, expansion joints for sheets andother similar specials shall be described and measured for the finishedwork in running metres stating the laps and the method affixing.

4.5 Ventilator sheets and other sheeting of dissimilar material shall bedescribed and enumerated as C extra over' on ordinary sheeting.

4.6 Eaves and valley gutters shall be described and measured in runningmetres along the central line.

4.7 Accessories, such as drop ends, stop ends, nozzles and angles shallbe described and enumerated as 'extra over' gutters.

-i.8 Union clips (loose sockets) shall not be measured separately.

5. ROOF SHEETING OTHER THAN METAL .AND ASBESTOSCEMENT

5.1 The method of measurement given in 4 shall also be applicable toroof sheeting of plastic, fibre glass, etc.

6. CLADDING (PLAIN, CORRUGATED OR SEMI-CORRUGATED)

6.1 The type of sheeting shall be described stating the thickness. Theside and end laps shall be stated and method of fixing described. If theside and end laps are bolted or riveted it shall be so stated specifying thespacing of bolts OT rivets.

7. ROOF TILING

7.1 The description shall state the kind, pattern, quality and size of thetiles, the gauge to which they are to be laid and the method of laying.

7.2 Single and double tiling shall each be measured separately.

7.3 Ridges, hips and valleys, shall be measured in running metres. Iflet in mortar, it shall be so stated specifying the mortar.

6

IS11200 (Part IX) -1973

'7.4: Special ridge and hip tiles shall be described stating the kind, pattern,quality and size as also the mortar in which bedded and pointed.Coloured mortar (to match the coloured tiling, if required to be usedfor pointing) shall be described.

7.5 Hip hooks shall be enumerated stating the size and whether black orgalvanized.

7.6 Eaves tiles bedded in mortar on walls shall be measured in runningmetres as extra for eaves describing the mortar and width of bedding.

7.7 Filling ends and spaces between tiles at eaves with mortar shall bemeasured in running metres and described stating the depth of filling.

7.8 Filling to single and double tiling shall be measured separately.

7.9 Screwing eaves tiles to battens shall be measured in running metresstating type, size, spacing of screws and washers. Drilling holes in thetiles shall be included in the description.

7.10 Half tiles or one and a half tiles at verges shall not be measuredseparately, but straight cutting and waste at verges shall be allowed forthe full length of the verge and measured in running metres.

7.11 Tiles at verges bedded in mortar on walls shall be measured inrunning metres as 'extra over' for verges describing the mortar and widthof tile bedding.

7.12 Country tiling shall be described as including all cutting andwaste.

7.13 Special ventilating tiles and glass tiles shall be enumerated as'extra over' only over roof tiling.

8. ROOF SlDNGLES

1.1 Wood shingles to roof shall be measured in the same way as in thecase of roof tiling (s" 7 ).

9. 1\oop SLA'rING

'.1 Slate roofs shall be measured in the same way as in the case of rooftiling

IS: 1200 (Part IX )-1973

10.1 Madras Terrace RoofiDg-It shall be fully described and plasterfinish on the top and underside included in the item.

Itl.2 Flat brick tile roofing shall be fully described stating the thIcknessand number of layers.

10.3 Hollow roof with brick on edge bridging courses in between twolayers of tiles shall be fully described and measured separately.

10.4 Flush pointing to tiles on top and underside ofroof shall be describedand included in the item of roofing.

10.5 Tiles laid in CHAJJAS and sun shades shall be measured separately.

10.6 The type of stone) quality and its dressing for stone slab roofingshall be described stating the thickness of slabs and spacing of battens orjoists. If the size of slabs is required to be uniform, it shall be so stated.

10.7 Jack arch roofing including provision of centering shall be measuredflat overall in square metres. The clear span, rise and thickness of arch,method of laying, jointing and pointing shall be described. The finish totop and underside shall also be stated and included in the description.

11. ROOF TREATMENT

11.1 Lime concrete in terracing shall be described and measured insquare metres stating consolidated average thickness.

11.2 Mud terraced roof shall be described stating average consolidatedthickness.

11.3 Each type of waterproofing treatment shall be fully described ( includ-ing type, quality and quantity of materials, side and end laps, wherenecessary) and shall be measured in square metres. All cutting, waste,forming of openings and wedging and pointing edges in masonrywork shall be included in the description. Tum-ups and trun-downs ateaves, verges, abutment, etc, shall be measured along with waterproofingtreatment.

11.4 The primer where provided shall also be measured separately asin 11.3..

11.5 The waterproofing treatment in flashings, aprons, gutters, hips, ridges)valleys, etc, shall be fully described (see 11.3), and measured net separatelyin square metres.

11.6 The waterproofing treatment between laps of corrugated sheetingshall be fully described including the method of securing and measured inrunning metres stating the width.

8

12. THATCHING, MATTING AND BAMBOO WORK

12.1 The materials shall be described stating the kind or fibre or strawand the finished thickness. The description vha ll Hie Iude bamboo orwood securing fillers, tying string and trimming to r-aves and verges.

12.2 Thatched capping to ridges and hips shall be described and measuredalong central line in running rnerres stating the girth. Matting, rnaterial,number of layers, laps and the method of fixing shall be described and allcutting and waste shall be included.

12.:1 Cover strips and cross bracings of split bamboos or wooden laths shallbe measured in square metres as 'extra over' matting and the method offixing shall he described.

12.,1 Bamboos laid one-way or two-way JAFFRI work shall each bemeasured separately in square metres stating the size of bamboos and theirspacing. Framing shall be included with the item-

12.5 Split bamboo work and whole bamboo work shall be measuredseparately.

12 ..6 Whole bamboos fixed independently as support to matting shall bemeasured in running metres stating the mean girth. The descriptionshall state the method of fixing and application of preservatives, ifrequired.

13. RAIN WATER GOODS

13.1 Gutters and pipes shall be described and measured in running metrr-sincluding all short lengths, cutting and waste. The material, protectivecoating, if any, the pattern, the method of jointing and fixing shall bedescribed. The length shall be measured along the central line. Thelength of all fittings, such as bends, junctions angles and the like shall beincluded.

13.2 Brackets for gutters shall be measured separately under the relevantpart of this standard.

13.3 Angles (internal or external ), drop ends and stopped ends shall bp.eriurnerated as (extra over' the length of gutters and shall include extrajoints, cutting and waste.

13.4 Pipe rails, distance pieces and holder bats shall be described andincluded with the fixing of the pipes.

13..5 Bends, elbows, offsets, shoes, branches, swan necks ~nd heads shallbe enumerated as C extra over' the length of pipe and shall include forextra joints, cutting and waste.

9

t\1GIPr - 162 Deptt of HIS/2008 200 Books

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