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Guide describing how to insulate closed crawlspace walls and band joist areas with rigid foam board insulation.

Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.

Guide describing the air-sealing of rim joists on walls connecting homes and attached garages.

Guide describing ways to air-seal an attached garage in new and existing homes.

Guide describing the principal of compartmentalization in multifamily buildings - the separation of dwelling units from each other and from common areas in terms of air flow. Locations where air-sealing is critical to maintain separation of air spaces and air-sealing methods especially for party walls are also described.