Document kpvbGa32wOK71kjXaVeBBQN0
Thi. .struction booklet is designed for ti,*. average homeowner who is involved in a home improvement project and needs simple,
easy to follow instructions on how to apply and finish gypsum
wailboard.
Georgiaffecific
GYPSUM DIVISION
^
FOLLOW THf 5E EASY DO-I' YOURSELF S
PLANNING THE JOB
A little thought and planning Before you Start your Broiect tan result m a Better appearing iod ana a savings m materials anc time. Mane a seten of tne areas to oe surfaced with gypsum waii&oara ana lay out the ooara panels mstan the coerss aeross (seroenoiCuiar to) the i0ists or studs. Use as .ong a poaro as can Be nanciea to eliminate or rscuce ena ,or.-.ts. For example. m a J2 i 13 room whe'e the cemng ,-oist$ 'u-n parallel to tne 13 di mension, it n desirapie to nave tn* scares Pe 12 ong f they are 8 long, an ene jc.-nt would o* necessary -n each csurse. Where eno iCints cannot Be avoioea. they snouio oe staggerea.
It is usually Better to appiy the eoara on tne cemng first, then the sidewalls.
It is often easier to use tne aanesive nan-on method of appli cation. Tms method results fewer nans to drive ano conceal and mams a higher quality installation
CUTTING GYPSUM WALLBOARD
use T-sauare and waiiBoara Knife for scoring. With the Knife at ngnt angies to the ooara. score completely tnrougn the face paper. Tne.-. appiy firm even pressure to snap the soara. fora Bacx the part.any separated portion of tne soara ana use the Knife again te Cut tne PacK paper. Rough edges should Be smoothes. Panels can Be cut with a saw .f aesirea.
CUTTING OPENINGS
it will Be necessary to cut notes in tne waiiBoarn for eieetrieai outlets, light receotac.es. etc. The distance of me opening from tne end ana edge of tne soara should Be carefully measured and marked on the face of the waiiBoard. The opening should then Be outlined m pencil ana cut out with a Ktynoie saw. The cut-out must Be accurate or tne cover piate win not conceal the hole.
ESTIMATING MATERIALS
usm; tne sMten. determine tne r;t*s ana mumpe- pf sea
reaui.-ec. Nans can se estimates *-cm c-at sesow *oout 5i `ewer nans are recu-red f the ae-.esive r-au-en methoo j 4S
ESTIMATING NAILS
Walfbaiurgl Thicantum 1 Njtl TyD*
S j*
1 V# * co*s*a ivs* 1 Ofyw*..
AOOfOI. fet *< 1000 SCJ s>* 5.
"
1i
l *' orywini
tye fh* *
f * <o%
After tne waiiBoird is instance, the fiat .omts ar.e m-
corners art ta Be remforcea with a pacer tape ana ,Oint c
oouna. The outside corners are to oe `eir'orced with a ary metal corner seaa and >omt compound. G. P Ready Mu
pre-muee. ready-to-use prsauct that can oe used for the c: Piete jeD of taping, filling, spotting, naii-neaos ana finishing
It is more difficult to install me e*mng ooaros Because of tn* overnead positioning. It is desiraoie to nave T-Brac*s to noio the Boara m piac* wmie it is Being naueo A satisfactory T-praceeorr Si$ts of a 2 foot piece of 1 * 4 naued onto tn tna of a 2 a 4. The length snouid Be aDdut an men longer tnan tne floor to ceiling
neignt. The nails snouid Be T apart. When the adhesive nail-or metnod is useo. me edges Should oe n,ted But only 1 nail pr joist m the field of the boarc All edges Should Be supported an framing. Tne nans Should Be driven to Bring tne Board tight to tn* framing, men another Blow struck to dimple tne nan i*mg care ful not to Dr*iK tne face paper.
JOINT FINISHING
H APPLYING BEDDING COMPOUND
A premised material Such as G p R* kAy Mw| JOirwvpmpo is tne easiest to us* to finish joints. t drVlfrs ana/'ea^Oeads.i minimum of tnree coats of Reaoy-Mtjj^sNjrecbkigwndji^for.
tacea lOmts. This includes an emoedimg coat to Dona tnt tape ana two finishing coats over tn# tape. Each coat should dry thcrougniy. usually 24 hours, so that the surface can Be easily sandeo. When sanding, wrio your sanapaper arouna a wood sanomg biock so you sand tn surface evenly. Do not over-sand or sand tne paper surface. This may outline the joint or nail head
through tne pamt.
Take your 4* joint finishing Kmf* and apply th* Ready-Mu Joint Compound fully and *v*nly into tn* slight recess created by tht adjoining tapered *dg*s of th* poard.
23 FINISHING NAIL IEADS
FINIS. iNG END JOINTS
compound sncuid Se la to IS "C"ej wee
with even pressure to smooth compound levti with tne suffice of the board. Oo net sow xmf* pisat with excess pressure is tins tends to scoop compound from dimpled ar#i. when ary, *oo<y
second coil it dry, s*nd lightly and lepiy third coat, Sana Sightly before applying your decoration. An additionn coat may
be needed depending on temperature ana numieity.
You use OaSiCaHy tne same steps w.*n end or putt joints as you do with taoerea edges. The end joints are net taoerec so eare must be te*#n not to Ouiid ue the comocuno n me center of the jomt. This encourages noging and snacawed areas.
Feather me compound wen out on each side of tne :omt. Fmai application of joint compound should oe 14 to 18 inches <oe.
FINISHING METAL.
CORNERBEAO
El FINISHING INSIDE
CORNERS
Be sure the metal corner is attached firmly. Take youf 4' finishing knife and spread the G-P Ready-Mu 3" to 4* wide from
the nos* of the bead, covering tne metal edges. When completely-
dry, sand ligntiy ana apply second coat, feathering edges 2* to 3* beyond the first coat. A third coat may be needed depending on your coverage. Feather the edges of each coat 2" or 3" beyond the preeedmg coat
Cut your tape me length of the cor-er angie you art "'mg to
f,n,sn Apply tne G-P Ready Mi* with your 4 knife eve' scout 11on eaen side of tne angle. Use sufficient compound to
embed tne taoe Foid tne tape along tne center mease and f"miy press it mto tne come' use enough pressure to sgueece some compound under tne edges, feather tnt compound 2 mcnes from tne eoge of the taoe. When first coat vs dry aop'y a second coat.
Featne- tne edge of the compound 1 V; beyond tne first coat Apoiy a third coat if necessary, let dry and sand to a smooth sur face Use as tittle compound as posside at tne ape* of trie angle to prevent nairune cracxmg.
FINAL DECORATION
After the joint treatment is thoroughly dry, an surfaces should be staled or primed with a vmyi or p pas pr.mtf sealer. This eouanxes the absorption difference between the exposed surface and the joint compound surface. You will then have a uniform texture and suction over the entire w|iiCtiling.When4&M sealer nitWied?] ao&f* un.iV-.iknll per the THth^ficturer^
Georgia-fecific
GYPSUM DIVISION
900 S.W FIFTH AVENUE PORTLAND. OREGON 97204
< * *
SPECIAL GYPSUM WALLBOARD PRODUCTS
There are several walibcards that are made fc specie uses. Ask your building materials dealer about;
Etemawail--
A predecorated vinyl faced walifcoard in various designs for vertical installation on walls. Joints are left unfinished
Tilt Backer Board--A wate' 'esistant waflboard which seryy a
r s^towi ^ i.
Fires!
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