Roofs, Attics & Ceilings -

Air Sealing/Insulation

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

Guide describing causes of condensation in attics and roof assemblies during cold weather and ways to reduce this condensation.

Guide describing steps to take to minimize indoor humidity in preparation for cold winter weather.

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.