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i <br /> l <br />� <br /> CORNERBEAD, TRIM AND CASINGS <br /> � Cornerbead—(Numbers indicate width of Oanees. "L" 8cad—(Num6ers indica�e thickness of board to be used) <br /> i.e.-118 it 1-1/8 in.wide Ilanie) <br /> L-38 <br /> L•12 <br /> L-SB <br /> C8-100 x 100 L•34 <br /> CB-116 z IIB <br /> CB-114 x 114 <br /> CB-100 z 114 <br /> CB—PF(Paper IlanBe, ��LK" Bead—(For use wi�h Kerfed j�mb) <br /> steel corner combinaiion bwd) <br /> LK•B <br /> •'U"Bead—(Numbers indiute thickness of <br /> LK-5 <br /> bo�rd�o be used,i.e.-38 is 7/8 in.) (B.Bull ar round nose) <br /> (S•Squure nose) <br /> U-)e <br /> V�12 "LC" Bced—(Numbers inditute�hickneu of board ro be used) <br /> U-58 <br /> U-34 LC-38 <br /> Conwl Joim LC•12 <br /> LC-SB <br /> LC•3� <br /> Removable Strip <br /> Dimensione Indicated are in U.S. Customary uni�s. _ <br /> i � f',� (a� �`; `i ` ; !` � f� 1 <br /> ���] <br /> �( � Figurc 1 ' • <br /> �� JUL 2 C, ;gs,3 <br /> _. _........................ <br /> CI1Y Or E'��F���T <br /> pcC:ic Worlcs Dzpt, <br /> S. Application of Gypsum Rnnrd uscJ:ii cdFcs nr ac l�ard cndx in horir.oNal applicotion shoulJ not <br /> NOTE:Por ur�rxl frt+ming. refrr�o Secrinn I.J. 6�siulfariun oJ'.vire� ik nwre ihan I in. fn�in edgcs ur cnds except when tlunting angle <br /> fmming sHould be in acrnrdnnce ���iih ASTM Srnndnrd C 7.54. meihocl (see 5.5) is used. Perimeter (astening into parti�ion plate <br /> ��r.ulc m tnV and l:uumu is ro� rcyuircd ur rccammcnCcd czccpl <br /> S.l Melhwls of Cutling und InsluiluUnn. Gypxum buardz m;ry wlicrc lin� miing, stniciur,J �xrfunnancc ur olhcr spcciul cnndi- <br /> wurkin� Gum I'ucc iiuns nyuirc such Listcning. Whllc Jr{ving fnclencrn, yypsmn <br /> bc wl by scoring und brcuking ur by sawing. 6 bn�vd shotdd IK I�dd In Orm cm�lucl wilh undcrl��ing supq�rt <br /> paper sidc. Whcn xoring usc u shurp knifa io cut through ihc fucc �`��i����•I'�s�cncrs nxccds frum ccnlcr nr ficW of gypsum <br /> p�per imo 6YPswn wrc.Gypsum boanl is thcn snuppcd bacA a���y b arcf trnvard cnJs anJ dgcs. <br /> trom cut facc. Back paper should bc broken Iry snapping EYPsum <br /> board in rcverse dircction,or prcferably by cutting bock paper.Ail <br /> S.IA Neils should be driven so that hcads am slighUy belav suo- <br /> at edges and ends of gypsum boards should be smoothed where face of gypsum board. Care should be tekrn ro a�roid damage to <br /> necessary to obtain ncat fittingjoinis when gypsum buard is inswllcd. �J S.1S Scrcw.s�i�h uldUbe drvcnk'��hae�rcwhcads�are slightly <br /> Holes for pipes, fixwrcs or other small openin@s.hnuld t+e scorcd �, um Iwan1 sur(ace without bmskin sudacc r or stri <br /> on facc and back bcforc rcmoval of cut•out wich a saw or spccial belrnv ps 6 P�P� P' <br /> tool designed (or�his use. Wherc gypsum board mec�s pmjec�ing pin6 framing memlxr around screw shank. <br /> surfaces, it should be scribed and neatly cut. S.lb Staples should be driven witii crown paralld to framing <br /> S.LI In genenl,gypsum board should be applicd first to ccil• members. Smplcs should be driven in such a manner that crown <br /> ings end then to walls. bean tightly aguinst gypsum boanl but does not cut into face paper. <br /> 5.1.2 Gypsum board joints at openings shail be located so that NOTE:Staple armchrnem is nstriaeJ ro firs�ply o�dy of g�pswn <br /> nojoint will align with cdges of opcning unless control join�s will Lnmxl in a n�n ply system. <br /> � be installed et those points.loints shall bc smggercd, and joints on 5.2 Applicalian of Single Fly Gypsum Board to Framing <br /> opposite sides of a partition shall not occur on �he same swd. A1embers• <br /> 5.1.3 Fastcners.whcn uscJ at cdgcs or cnds, should bc spaccd 52.1 Maximum spacing of f��ming mcmbcrs(or singlc ply gyp- <br /> not Iess thau 3I8 in.(rom edges und ends oi Qypsum kward•Fasteners sum boarcl construction should not exceed those shown in Tnble I. <br /> 5 <br />