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Guide describing how to apply an air control layer directly over existing wall sheathing and cover with two layers of insulating sheathing held in place by vertical furring strips.
Guide describing installation of a fully sealed continuous weather resistant barrier to provide a drainage plane to keep rainwater out of above-grade walls.
Guide describing the installation of 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 discussing disaster resistance related to asphalt shingle roofing when installing roofing on new construction or when repairing or replacing roofing on existing homes.