Roofs, Attics & Ceilings -

Air Sealing/Insulation

Guide describing how to air-seal duct and flue shafts.

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

Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.

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