BASC Search

Guide describing insulation techniques for skylight shaft walls.

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

Guide describing how to construct homes with structural insulated panels.

Guide describing method for insulating an unvented crawlspace or conditioned basement with rigid foam on the interior side of the walls.

Guide describing Installing blanket fiberglass insulation on the interior walls of a conditioned, unfinished basement as an alternative to best practice solutions.

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 principles of insulating and air sealing band joists as a stand alone energy upgrade, or as part of creating a closed crawlspace.

Guide describing how to insulate a floor overhang (or cantilever) on an existing home by adding insulation and an air barrier to air seal the floor joist bays under the cantilever.

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

Guide describing how to insulate and air seal the floor joists over a garage when there is loving space above the garage.

Guide describing how to upgrade a crawlspace floor in an existing home by adding insulation.

Guide describing how to re-roof an existing home with a sloped roof and add insulation above the roof deck.

Guide describing an approach to re-roofing an existing flat roof to improve thermal, water, and air control performance.

Guide describing how to apply spray foam insulation to the floor of the attic in 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 common areas of thermal bridging in mass (concrete) and steel-framed multistory buildings and methods and materials for addressing those points of thermal bridging.

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

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

Guide describing options for insulating and air sealing at either the attic floor or along the roof line in new homes.