Foundations & Floors -

Air Sealing/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 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.

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

Guide describing ways to seal drywall to the top plate of an exterior wall to air-seal the wall cavity.

Guide describing how to air-seal electrical wiring throughout a home.

Guide describing how to air-seal modular home marriage joints.

Guide describing how to air-seal common walls between dwelling units in multifamily housing.

Guide describing how to air-seal around plumbing and piping penetrations through walls, ceilings, and floors.

Guide describing how to air-seal sill plates in single-family homes and multifamily buildings.

Guide describing the repair and reconfiguration of the air handler closet and platform when replacing the air handler.

Guide describing how to insulate a floor over unconditioned space with conditioned space above by adding insulation and air-sealing.

Guide describing how to upgrade a wall with a floor overhang (or cantilever) on an existing home by adding insulation (rigid insulating sheathing and/or closed-cell spray foam) and air-sealing.

Guide with information about how to upgrade a garage ceiling when a portion of the interior of the house is located directly above the attached garage by adding insulation and air sealing.

Guide describing ways builders can block off entry points and otherwise make homes inhospitable to all manner of pests.

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

Guide describing techniques and measures for increasing the termite resistance of a home's foundations.

Guide describing how to insulate the sill beam or sill plate on the exterior side in a way that allows drying to the exterior, as part of an exterior wall upgrade.