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This guide describes how to install a rigid air barrier to walls behind showers and tubs.

Guide describing how to insulate and air-seal attic knee walls and floor joist cavities under knee walls.

Guide describing how to frame and insulate corners to reduce heat losses and gains though structural framing.

Guide describing how to air-seal and insulate a cantilevered floor.

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

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 install continuous air barriers in exterior walls.

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 duct and flue shafts.

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

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.