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Guide describing how to insulate a floor over unconditioned space with conditioned space above by adding insulation and air-sealing.

Guide with information about how to upgrade a garage ceiling when a portion of the interior of the house is located directly above the attached garage by adding insulation and air sealing.

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

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 add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.

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 repair or replace skylights in existing homes.

Guide describing ways to seal drywall to the top plate of an exterior wall to air-seal the wall cavity.

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

Guide describing options for designing and locating the thermal boundary at either the attic floor or along the roof line in new and existing homes.

Guide describing methods for insulating an unvented attic along the roof line.

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

Guide describing the installation of insulating sheathing above the roof deck on existing homes. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic.

Guide describing how to correctly air-seal a wall with missing top plates or open wall cavities.

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

Guide describing how to air-seal and insulate a ceiling where the insulation is installed on top of the ceiling (on the attic floor) in a vented attic.

Guide describing how to create an air barrier between the garage and the conditioned space above it to prohibit pollutants from entering a home's interior.

Guide describing insulation techniques for skylight shaft walls.

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

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

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

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

Guide providing guidance on insulating attic eaves in new and existing single-family homes and multifamily buildings.