Roofs, Attics & Ceilings -

Ceilings

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

Guide describing how to insulate and air-seal attic knee walls and floor joist cavities under knee walls.

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 insulate and air-seal dropped ceilings and soffits to prevent air leakage.