cement board installation

AskForPurple.com Cement Board Installation PermaBase Cement Board is the preferred underlayment for ceramic tile applications on shower and tub enclosures, countertops, backsplashes and flooring. Basic Cutting n With printed side up, use straight edge to mark line n Use utility knife to score and cut glass mesh n Snap board and cut through glass mesh on opposite side Cutting Holes n With printed side up, mark area for cutout n Use utility knife to score and cut n Punch out cut area with hammer n Cut glass mesh on opposite side you knocked out Tub/Shower Walls/ Ceilings n Install with printed side facing you n Use two 3'x5' boards horizontally for tub backwall and one 3'x5' board vertically at each endwall and ceiling n Space wall fasteners 8" o.c. and ceilings fasteners 6" o.c. Floor Underlayment n Use 1/4" trowel to apply latex-Portland cement setting bed to subfloor n Cover with PermaBase staggering joints so they don’t line up with subfloor joints n Allow 1/4" gap between PermaBase and room perimeter n Fasten every 8" o.c. in both directions and around all edges Countertops n Use 1/4" trowel to apply latex-Portland cement to plywood n Cover with PermaBase staggering joints so they don’t line up with plywood n Allow 1/8" gap between panels n Fasten every 8" o.c. in both directions and around all edges Important Things to Know n Score/cut and tile on printed side of board. n Use 1/2" for walls and ceilings. n Use 1/2" or 1/4" for floors and countertops. n It is vapor permeable and unaffected by water BUT is not a water barrier. If the area behind the cement board must be kept dry, a separate moisture barrier, or waterproof membrane should be used. n Not recommended for use with vinyl flooring. n 30-year limited warranty for interior applications. Cutting PermaBase Installing PermaBase

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AskForPurple.com

Cement Board InstallationPermaBase Cement Board is the preferred underlayment for ceramic tile applications on shower and tub enclosures, countertops, backsplashes and flooring.

Basic CuttingnWithprintedsideup,

usestraightedgetomarkline

nUseutilityknifetoscoreandcutglassmesh

nSnapboardandcutthroughglassmeshonoppositeside

Cutting HolesnWithprintedsideup,

markareaforcutoutnUseutilityknifetoscore

andcutnPunchoutcutareawith

hammernCutglassmeshonoppositesideyou

knockedout

Tub/Shower Walls/ CeilingsnInstallwithprintedside

facingyounUsetwo3'x5'boards

horizontallyfortubbackwallandone3'x5'boardverticallyateachendwallandceiling

nSpacewallfasteners8"o.c.andceilingsfasteners6"o.c.

Floor UnderlaymentnUse1/4"troweltoapply

latex-Portlandcementsettingbedtosubfloor

nCoverwithPermaBasestaggeringjointssotheydon’tlineupwithsubfloorjoints

nAllow1/4"gapbetweenPermaBaseandroomperimeter

nFastenevery8"o.c.inbothdirectionsandaroundalledges

CountertopsnUse1/4"troweltoapply

latex-Portlandcementtoplywood

nCoverwithPermaBasestaggeringjointssotheydon’tlineupwithplywood

nAllow1/8"gapbetweenpanelsnFastenevery8"o.c.inbothdirectionsand

aroundalledges

Important Things to KnownScore/cutandtileonprintedsideofboard.nUse1/2"forwallsandceilings.nUse1/2"or1/4"forfloorsandcountertops.nItisvaporpermeableandunaffectedbywaterBUTisnotawaterbarrier.

Iftheareabehindthecementboardmustbekeptdry,aseparatemoisturebarrier,orwaterproofmembraneshouldbeused.

nNotrecommendedforusewithvinylflooring.n30-yearlimitedwarrantyforinteriorapplications.

Cutting PermaBase

Installing PermaBase

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