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Taped Insulating Sheathing Drainage Planes

Guide

Guide describing techniques for installing insulating sheathing as a continuous drainage plane on walls.

Proper flashing around windows is especially important when the rigid foam serves as the drainage plane in the wall

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Rigid foam insulation can serve as the drainage plane when all seams are taped. Furring strips provide an air gap behind the cladding.

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This basement is insulated on the exterior with rigid foam over dampproofing, with granular backfill and footing drains to facilitate drainage away from the foundation, a termite shield to protect from pests, and cellular PVC to protect the rigid foam.

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Upper wall insulation installation with butyl z-flashing

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Above Deck Rigid Foam Insulation for Existing Roofs

Guide

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.

Flashing of Roof-Wall Intersections in Existing Homes

Guide

Guide describing how to install and properly integrate flashing at the intersection of the wall and roof on an existing home.