Guides A-Z

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 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 that illustrates how and when to encapsulate ductwork in unconditioned attics, increases the R-value of duct insulation, mitigating condensation issues and reducing air leakage.

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

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

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

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

Guide describing how to re-roof an existing home with a sloped roof.

Guide describing wind washing and how to prevent it.