Walls & Openings -

Air Sealing/Insulation

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 common walls between dwelling units in multifamily housing.

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

Guide describing blown insulation into exterior wall cavities of existing homes with minimal disruption to occupants.

Guide describing how to install flashing that is integrated with air and water control layers around piping, vents, and other wall penetrations as part of an exterior wall retrofit.

Guide describing how to correctly air-seal a wall with missing top plates or open wall cavities.

Guide describing how to apply an air control layer directly over existing wall sheathing and cover with two layers of insulating sheathing held in place by vertical furring strips.

Guide describing how to upgrade walls that separate the garage from the house by providing a continuous air control layer on the garage side of the wall and adding rigid foam insulation.

Guide outlining how to retrofit an exterior wall and/or attic to provide continuous air sealing.

Guide describing insulation techniques for skylight shaft walls.

Guide describing how to install stucco over rigid foam insulation in new and existing homes.

Guide describing the design and installation considerations for recladding of above grade walls using insulated vinyl siding.

This guide describes how to install a rigid air barrier to separate the porch attic from the conditioned space.

This guide describes how to install a rigid air barrier to walls behind fireplaces.

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.