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Guide describing how to air seal around duct shafts and flues installed through ceilings, walls and flooring in new and existing homes.

Guide describing how to repair or replace skylights in existing homes.

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

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

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

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