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 how to air-seal bathroom and kitchen exhaust fans.

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 duct and flue shafts.

Guide describing how to air-seal electrical wiring throughout a home.

Guide describing how to air-seal around light tubes.

Guide describing how to air-seal around recessed light fixtures below unconditioned space.

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

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

Guide describing buried ducts in loose-fill attic insulation, a method that can only be used in dry climates.

Guide describing approaches to burying and encapsulating ducts in unconditioned attics to increase the overall R-value of duct insulation.

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

Guide describing how to install insulation below attic platforms

Guide describing RESNET Grade 1 level installation of insulation in walls, attics, and floors.

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

Guide describing the types of whole-house fans, installation details to reduce energy loss, and how to operate them for comfort and energy savings based on climate zone.

Guide describing wind washing and how to prevent it.