Guides A-Z

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 air-seal duct and flue shafts.

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

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

Guide describing the advantages and disadvantages of gable roofs and hip roofs and how both designs react under high wind loads.