Image Proper flashing around windows is especially important when the rigid foam serves as the drainage plane in the wall Publication Date Mon, 10/01/2007 - 12:00
Above Deck Rigid Foam Insulation for Existing Roofs Description 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.