1、BRITISHSTANDARD CP 143 -12 :1970I n c orpora t ingA mendmen t N o s .1a nd 2C ode of pract i c eS heet roof a nd wa llc o v ering s Par t 1 2 :Copper:Me t ric unitsCONFIRMED DECEMBER 2007Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSICP 143 -12 : 1970T his p a r t of this C ode of P r a
2、ct i c eh a s b eenprep a red b y acommitteec onv ened b y the C odes of P r act i c eC ommittee for B u ilding. I t w a s p u b lis hed under the a uthority oft he E x e c uti v e B o a rd on3 1 J u l y 1970 BSI 08-1999F irst p u b lis hed A pril 1960 a s Par t 4imperia l units.P u b lis hedinme t
3、ric forma s Par t 1 2 J u l y 1970Par t 1 2 inc orpora t e s t hea mendment t o CP 143 i ssu edin Oct o b er 196 1(PD 4 3 48)T he follow ing BSI referen c erel a t e s to the work on this C ode of P r act i c e :C ommittee referen c e BLCP/ 4 / 4ISBN 580 06281 3S u b - C ommittee BLCP/ 4 / 4C opperr
4、oof c o v eringsC h a ir Vacan tD r. E . Carr C opper D e v elopmen t A sso c i a t ionD irec t or B u ilding R e s e a r c h S t a t ion,Ministr y of P u b licB u ilding a nd W orksM r. C . E . Cannons I n sti tution of S t r u c tur a l E ngineersED 3 A M inistr y of P u b licBu ilding a nd W orks
5、M r. A . J . B u rling,J. P . Nat iona l F edera t ion of B u ilding T r a de E mploy ersM r. C . W . H utton R o y a l I n sti tut eof B rit i s h A r c hit e c tsM r. B . C . B rittonM r. F . J . Cav e T he R o y a l I n sti tution of C h a r t ered S u r v e y orsM r. G . T u lleyM r. R . M . E d
6、 w a rds A sso c i a t ion of B rit i s h R oofing F elt Man u f acturersnullnullA mendments i ssued sinc epu b licat ionA md. N o. Dat eofissu e C omments8 63 F e b r u a r y 19725193 Jan u a r y 1987 I ndicat ed b y a s ideline in the m a rginLicensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c
7、) BSICP 143 -12 : 1970 BSI 08-1999 iC ont entsPageF orew ord iii1 G enera l11.1 Scope11.2 D efinit ions 11.3 E x c h a nge of informa t ion a nd time sc hedu le 22 Mat eria l s ,applia n c e s a nd c omponents 22 .1 C h a r act eri sti c s of m a t eri a l 22 . 2 C opper 22 . 3 Nails22 .4 Screws 22
8、.5 F elt22 . 6 S older 23 D e s ign c ons idera t ion3 .1 D u r abili ty 23 . 2 S u b str u c ture 33 . 3 T y pes of c opper roof a nd wa ll c o v ering 43 .4 C opper roof c o v erings 43 .5 R oll s 43 . 6 S pec i a lfe a tures 43 . 7 T herma lin sul a t ion 53 .8 V ent ila t ion 53 .9 F ire res i s
9、ta n c e53 .10 W eight 53 .11 P rot e c t ion a g a inst light ning54 M e t hods of l a y ing a nd workma n s hip 54.1 P rot e c t ion a nd st ora ge 54.2 P repa r a t ory w ork 54.3 S equ enc eofopera t ions 54.4 S e ttingout the work 54.5 F elt ing 54.6 T e c hniqu eofla y ing c opper sheet ing 64
10、.7 S t a nding se a m s64.8 R oll system 64.9 Par a pet a nd b o x g utter4.10 C e sspool4.11 D e t a il5 I n s pec t ion a nd te sting 75.1 P repa r a t ory w ork 75.2 W ork in progress 75.3 C omplet ion 7A ppendix ATable of a pprox ima t e weights of c l a dding sheet 8A ppendix BPropert ies of c
11、opper 8A ppendix CTable of dimens iona lde t a ils for c opper g utters 8F igu re 1G enera lla y o ut for st a nding se a m a nd det a ils 9F igu re 2 G enera lla y o ut for c ommon roll 1 0F igu re 3 D e t a il of roll ends 11F igu re 4D e t a il of ridge a nd hip for c ommon roll 1 2F igu re 5C om
12、mon roll 1 3Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSICP 143 -12 : 1970ii BSI 08-1999PageF igu re 6 S ingle loc k welt 1 3F igu re 7 D o u b le loc k c ross w elt 1 3F igu re 8S t a nding se a m13F igu re 9S t a nding se a m a nd up sta nd 14F igu re 1 0 F l a ttened st a nding se
13、a 5F igu re 11 S t a nding se a mridge 1 6F igu re 1 2 G utter a nd o utlet . I s omet ric sket c hs how ing a ty pical a rra ngement 1 7F igu re 1 3 G utter toroof c o v ered wi t h sl a t e s or tiles 18F igu re 14 L ining pla t e18F igu re 15 T iled or sl a t ed roof dis c h a rging on c opper fl
14、a t 19F igu re 1 6 C opper roof dis c h a rging on sl a t e s or tiles 19F igu re 1 7 C ommon roll to v ert i cal up sta nd 20F igu re 18 I n t erna l c orner,common roll 2 1F igu re 19 D rips22F igu re 20 S t a nding se a min t erna l c orner 23Table 1Max imu m bay widt h s a nd lengt h s to b e us
15、edw i t h va rious t hic knesse s of c l a dding sheet 5Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSICP 143 -12 : 1970 BSI 08-1999 iiiF orew ordT his p a r t of the C ode of P r act i c ema kes referenc e to the follow ing B rit i s hS t a nda rds a nd C odes of P r act i c e :BS 2 19
16、, S oft s olders .BS 7 4 7 , R oofing felts.BS 1 2 1 0 , W ood sc rews.BS 4 76, F ire te sts on b u ilding m a t eria l s a nd st r u c tures Par t3:Externa lfiree x posure roof te st.BS 2 8 70, S pec ifi cat ionfor rolled c opper a nd c opper a llo ys: sheet , st rip a nd foil.BS 5 268 , S t r u c
17、tur a l us eof timb er Par t2:Code of pract i c efor permissi b lestress des ign, m a t eria l s a nd workma n s hip Par t 5 :Pres erv a t i v e trea t ments for c onstr u c t iona l timb er.CP 326, T he prot e c t ion of st r u c tures a g a inst light ning.T his met ric edit ionof CP 143 , whic hh
18、a s b eende s ign a t ed Par t 1 2 , i s t he met ricv ers ionof Par t 4pu b lis hed in imperia l units in A pril 1960.Par t 1 2 i s not a te c hnicalre v i s ion of the C ode a nd h a s b een prepa red a s p a r t oft hec h a nge to the met ric system in theC onstr u c t ionI ndustr y , giv ing va
19、l u e s inSIu nits. F or f u r t herinform a t ionon SI units, referenc e shou ld b ema de toBS 3763, “ I n t erna t iona l S ystem ( SI) units” ,and PD 5 6 8 6 , “ T he us eof SI units”.W herev er i t h a s b een nec e ssa r y t o a pply dimens iona l c o-ordina t ion,rec ommenda t ion s of T e c h
20、nical C ommittee B / 94,Modu l a r C o-ordina t ioninB u ilding, h a v e b een reflec t ed in this met ric vers ion. F or f u r t herinform a t ionondimen s ion a l c o-ordin a t ionreferenc e shou ld b ema de to BS 4 0 11,“ R e c ommenda t ions for thec o-ordina t ion of dimens ions inb u ilding.Ba
21、s i c si z e s forb u ilding c omponen ts a nd a ssemb lie s ” ,BS 4 330, “ R e c ommenda t ions for thec o-ordina t ion of dimens ions in b u ilding. C ont rolling dimens ions ” ,andPD 6 444, “ Bas i c sp ace s for st r u c ture, e xterna len v elopea nd int erna l su b -div i s ion”.ABrit i s h S
22、t a nda rd does not p u rport toin c l u de a ll the nec e ssa r y prov i s ions of ac ont r act . U s ers of B rit i s h S t a nda rds a re res pons i b le for their c orrec t a pplicat ion.C omplia n c e w i t h aBrit i s h S t a nda rd does not of i tself c onfer immu nity from lega lob liga t io
23、ns .S u mma r y of p a gesT his doc u ment c ompris e s a front c o v er,anin s ide front c o v er, p a ges i toiv ,p a ges 1 t o 23 a nd aback c o v er.T his sta nda rd h a s b een upda t ed ( s ee c opy right d a t e) a nd m a y h a v eha da mendments inc orpora t ed. T his w ill b eindicat ed in
24、the a mendment t able on theins ide front c o v er.Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSIi v b l a nkLicensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSICP 143 -12 : 1970 BSI 08-1999 11 G enera l1.1 ScopeT his C odede a l s wi t hme t hod s of c o v ering a roof orw a l
25、l wi t h c opper shee t or strip in accorda n c e wi t he stablis hedpr act i c e.T herea rea l t erna t i v eme t hods of l a y ing whic h a re not inc l u ded in the te c hniqu e s des c rib ed,as t hey a re genera lly va ria t ion s oft r a dit ion a lroofpr act i c e.R e c ommenda t ions a re gi
26、v en in rega rd to the wholeof thec o v erings abo v e the woodenr a f t ers forpit c hedroofs ,andabo v e thejoists or the upper su rfaceof thec onstr u c t iona l bas efor fla t roofs a nd wa lls .F l a s hings a nd g utt ers a re dea l t w i t hin sofa r a s t hey a re int egr a lpa r ts of the c
27、 o v ering.T he dimens iona l c o-ordina t ion rec ommenda t ions ofT e c hni cal C ommittee B / 94,Modu l a r C o-ordin a t ionin B u ilding,are emb odied where a ppropria t e to theC ode.1.2 D efinit ionsF or the p u rpos e s of t his C ode t he follow ingdefinit ions a pply .1.2 .1baya unit of sh
28、eet c o v ering a s l a id b e tween rolls orsta nding se a m s1.2 . 2 cappingacopper st rip ,co v ering the top of aba tten roll,w elt ed to the edges of the sheets w hic h a re dressedu p t he sideof t he roll1.2 . 3 c lip sc opper strips ,cut tolengt h s to sui t roll or se a m ,placed a t int er
29、v a l s a nd se c u rely fix ed to the roofbas e , the ends b eing welt ed in wi t h the edges of thes heets tohold the c l a dding in pos i t ion1.2 .4c orner b loc ka short t ria ngu l a r wooden fillet t a pered in i ts lengt h , fix ed a g a inst abutments, w here sheets t ermina t e a t drips o
30、n roofs , wa lls a nd g utters1.2 .5dog-e a rabo x -like c orner of three dimens ions formed b y folding a fla t c opper shee t w i t hout c utting1.2 . 6 dripa st ep formed in a fla t roof or g utter across t hedirec t ion of the f a ll1.2 . 7 drop a prona sepa r a t epiec eof c opper fix ed a t t
31、he verges , e a v e s or g utters , toform a we a t hering a nd welt ed to theroof sheet ing1.2 .8lining pla t ea st rip of c opper of su i t able widt h whic his n a iled tot he e a v e s or verges of a roof a nd enga ged wi t h thelow er edgeof the drop a pron toform a se c u re fix ing1.2 .9loc k
32、join ta single or dou b le welt ed joint1.2 .10 p a t inat he thin st able ins olu b le film whic hforms onc opperon e x posure to a ir. T he film c ons i sts of somec omb ina t ionof c opper o x ide,copper su lpha t e ,c opper car b ona t e a ndc opper c hloride, depending ona t mos pheri ccondit i
33、ons . T he c olo u r va rie s fromb l ack togreen according to the rela t i v eproport ions of the c ompou nds pres ent1.2 .11roll,commona sh a ped c ore a g a inst t he sides of whic h the c opperbays a re dressed or a re tu rned up1.2 .12 roll, ridge a nd hipa sh a ped c ore a t ridge a nd hip a g
34、 a inst w hic h thec opper i s dressed or i s turned up1.2 .13 s a ddle endt hec omplet ionofaba ttenrollc o v eringora st a ndings e a m a g a inst a n abutment1.2 .14s pringt he b ending of the sub str u c ture under loa d stress a nd rec o v ery a f t er remov a l1.2 .15sta nding s e a ma dou b l
35、e welt ed joint formed b e tween the sides ofa djacent bays a nd lef t sta nding1.2 .16stop end (rollor se a m)t he c omple t ionof aba tten roll c o v eringor st a ndings e a m a t a drip or e a v e sLicensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSICP 143 -12 : 19702 BSI 08-19991.2 .17 w
36、 elt ingjoining c opper sheets a t t heir edges b y mea n s offolding. W elt ingma y b e b y s ingle or dou b le folds ,suc hjoints b eing termed single or dou b le w eltsres pec t i v ely1.2 .18w orkha rdeningt he red u c t ionofdu c t ili ty caused b y b ending orw orking d u ring m a nipu l a t i
37、on or b y mov ement ins erv i c e1.3 E x c h a nge of informa t ion a nd times c hed u leT he working dra w ings a nd s pec ificat ion shou ld b eprepa red in su ffic ient det a il to a fford properg u ida n c ein the prepa r a t ion of e stima t e s a nd thee x e c utionof the work.W hereb ills ofq
38、 u a n t i t ies formp a r t of the c ont r act , they shou ld b eprep a redinaccorda n c e wi t h the S t a nda rd M e t hod ofM e a suremen t for B u ilding W ork s or the Sco tti s hM odefor the M e a surement of B u ilding W orks ,as a ppropria t e. T here shou ld b e a f u ll e x c h a nge ofin
39、forma t ion b e tween a ll c onc erned wi t h thec l a dding a nd the work a djacent t oit , in su ffic ient t ime toen sure th a t t he c o v ering can b e carried o ut a t t he proper time a nd th a t a ll nec e ssa r y prov i s ionfor fix ing h a s b een m a de in a d v a n c e. Early a rra ngeme
40、nts shou ld b ema de on the si t eforr a inw a t er dis pos a l. C l a dding shou ld b e c omplet edb efore int ern a lfinis hes a re b egu n.2 Mat eria l s ,applia n c e s a ndc omponen ts2 .1 C h a r act eristi c s of m a t eria lB right c opper c h a nges c olou r when e x pos ed to thea ir. T hi
41、s dis c olora t ionis d u e to t he forma t ionof a no x idefilm whic his a nimport a n t a gent in prot e c t ingt hec opper.T he prelimina r y o x idiz ing proc e ss i s t hefirst st ep in the forma t ion ofa p a t ina . T his p a t ina i s usu a lly abright green c olou r(c ons idered a nenh a n
42、c ement to a r c hit e c tur a leffe c t in c ert a inc irc u m sta n c e s ) b ut, in somea t mos pheres , i t m a y b em a s ked to abu ff,brow nor b l ack c olou r , dependent on the q u a n t i t ies a nd n a ture of the impu rit ies depos i t ed on the su rfacefrom the a t mos phere.( T he p a
43、t ina shou ld not b e c onfused wi t h“v erdigris ” ,w hic his a l s oof a green or grey c olou r a nd i s formedb y different c hemicalre act ion.)2 . 2 C opperT he whole of thec l a dding inc l u dingc lips , fla s hings ,lining-pl a t e s , sa ddleends , e t c . , shou ldb ema defromc opper sheet
44、 or st rip c onforming to BS 2 8 701).T he c orrec t s i z e s a nd g a u ges a re giv en in Table 1.2 . 3 NailsNails used in se c u ring the c opper c lips a nd the felt u nderla y s hou ld b ema de from c opper wire not less t h a n 2 . 6 mm thic k. T he n a ils s hou ld b eno t less t h a n 2 5mm
45、long mea sured under the hea d a ndw eigh not less t h a n1.5 kg per 1 000.T he hea d s shou ld b efl a t a nd not less t h a n 6 mmdia met er a nd the sh a nks bar b ed thro u gho ut theirlengt h.2 .4 ScrewsScrews used in se c u ring c lips or o t her c omponents s hou ld b ema de of b r a ss. W he
46、re sc rews a re used tos e c u re rolls , steel s c rews m a y b e used.A ll sc rews shou ld c onform to the rele v a n t requ irements of BS 1 2 1 0 . 2 )2 .5 F eltT he felt m a y b eei t her BS 7 4 7 3 ) ,Ty pe 4 A (ii) B row nN o. 1 I nodorous, or a simila rfelt w hic h will not a dhere to the me
47、t a lor understr u c ture undert emper a ture c h a nge s .2 . 6 S olderF or the joint ing of e a v e s , g utters a nd o utlets fromc e sspools , solder shou ld c onform to therequ irements of BS 2 194),Gr a de A . S ee a l s o 4.11.5.3 D e s ign c ons idera t ions3 .1 D u r abilityC opper posse ss
48、e s good mec h a nicalpropert ies a ndh a s a mple strengt hfor roofingpu rpo s e s .C opperis v ery res i sta n t t o c orros ion b y a t mos pherea ndnorm a l b u ildingm a t eria l s . S omene w m a t eria l s m a y c ont a in a gents w hic h a re act i v e under c ert a inc ondit ions ,and a d v
49、 i c e a s t o their su i t ability s hou ldb e so u ght from the c opper c l a dding c ont r act or.I ts life i s equ a l to a nd oft en longer th a n th a t of o t herb u ilding m a t eri a l s wi t h w hic hit m a y b e used. T hed u r abili ty of acopperroof c o v eringis dependen tu pon physi cal c ons idera t ions suc h a s t hic kness,mec h a nicalpropert ies a nd pract i calme t hod s offix ing a nd upon res i sta n c e to c orros ion.M e t a l s o t her th a nle a dma y suffer from elec t rolyti cc orros ion if placed in c ont ac
