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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 methods for insulating an unvented attic along the roof line.

Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.

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

Guide describing insulation techniques for skylight shaft walls.

Guide describing wind washing and how to prevent it.

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 light tubes.

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

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

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

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

Guide describing different options for providing seismic and thermal resistance for homes with 'cripple' wall crawlspace foundations, which are known for their instability.

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

Guide describing how to air-seal attic access panels, doors, and stairs to provide a continuous air barrier at the ceiling.

Guide describing how to install continuous air barriers in exterior walls.

Guide describing method for designing and installing ducts in a raised ceiling chase.

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.