Roofs, Attics & Ceilings -

Air Sealing/Insulation

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 a vented attic in an existing home using blown insulation added to the attic floor.

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

Guide describing how to apply spray foam insulation to ceilings in existing homes.

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.