Installation Guide

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May$15,$2013
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GAF’s$EnergyGuard$Polyiso$Wall$Sheathing$is$intended$to$be$installed$on$residential$
construction$only.$$Application$types$include:$
o Framed$stud$$walls$(exterior$&$interior)$
o ReKsiding$
o Masonry$cavity$walls$
o Vaulted/$cathedral$ceilings$
o Interior$basement$walls$
The$following$are$general$application$instructions.$$Be$sure$to$review$complete$
instructions$at$www.gaf.com.$
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• Before$applying$any$boards,$make$sure$to$use$codeKaccepted$
shear$and$corner$bracing,$such$as$metal$strapping,$letKin$
diagonal$wood$bracing$or$structural$sheathing,$such$as$OSB$or$
plywood.$$
• Install$EnergyGuard™$Polyiso$Wall$Sheathing$boards$so$that$the$
longer$edge$is$positioned$vertically$with$the$edges$resting$on$
the$middle$of$the$stud.$Make$sure$that$the$board$joints$are$in$
contact$with$each$other,$with$the$printed$side$facing$the$
exterior.$Contact$your$local$building$code$official$for$
requirements$on$horizontal$bracing.$
• Fasten$all$boards$using$galvanized$ring$shank$nails$with$a$
minimum$3/8”$(9.5$mm)$diameter$heads$or$staples$with$
minimum$1”$(25$mm)$diameter$plastic$caps.$Fasteners$must$be$
long$enough$to$penetrate$the$substrate$at$least$3/4”$(19mm).$$
• Fasten$EnergyGuard™$Polyiso$Wall$Sheathing$boards$12”$(305$
mm)$o.c.$around$the$perimeter$and$16”$(406$mm)$o.c.$in$the$
field$or$as$required$by$local$codes.$Do$not$overdrive$the$
fasteners.$