Roofs, Attics & Ceilings -

Air Sealing/Insulation

Guide describing how to air-seal attic access panels, doors, and stairs to provide a continuous air barrier at the ceiling.

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

Guide providing guidance on insulating attic eaves in new and existing single-family homes and multifamily buildings.

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

Guide describing how ice dams form and how roofs can be constructed to prevent them.

Guide describing air-sealing of non-ICAT recessed lights installed in accessible attics of existing homes.

Guide describing how to apply heavy membranes at eaves in cold climates to help guard against ice dams.

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

Guide describing methods for insulating an unvented attic along the roof line.