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Guides A-Z

This guide provides information about installing Insulating sheathing above the roof deck on existing homes. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic.

Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.

Guide illustrating how to insulate a floor over unconditioned space with conditioned space above by adding insulation and air sealing.

Guide describing how to apply an air control layer directly over existing wall sheathing, and cover by two layers of insulating sheathing held in place by vertical furring strips.

Guide describing how to upgrade walls that separate the garage from the house by providing a continuous air control layer on the garage side of the wall and adding rigid foam insulation.

Guide describing how to install stucco over rigid foam insulaiton in new and existing homes.

Guide describing the design and installation considerations for recladding of above grade walls using insulated vinyl siding.