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Guide describing options for designing and locating the thermal boundary at either the attic floor or along the roof line in new and existing homes.

Guide describing principles of insulating and air sealing band joists as a stand alone energy upgrade, or as part of creating a closed crawlspace.

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 describing wind washing and how to prevent it.

Guide describing methods for insulating an unvented attic along the roof line.

Guide describing continuous rigid insulation installation procedures to reduce thermal bridging and help provide thermal protection.