Roofs, Attics & Ceilings -

Air Sealing/Insulation

Guide describing how to air-seal and insulate a ceiling where the insulation is installed on top of the ceiling (on the attic floor) in a vented attic.

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

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

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 application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.

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.

Guide describing how to install insulation below attic platforms

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

Guide describing wind washing and how to prevent it.