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Guide describing how to air-seal duct and flue shafts.

Guide describing how to air-seal bathroom and kitchen exhaust fans.

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

Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.

Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.

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

Guide describing how to air-seal around light tubes.

Guide describing wind washing and how to prevent it.

Guide describing insulation techniques for skylight shaft walls.

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

Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.