Guides A-Z

Guide describing how to air-seal around light tubes.

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

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

Guide describing air-sealing of non-ICAT recessed lights installed in accessible attics of existing homes.

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