Sealing Duct Boots to Floor or Drywall Description Guide describing how to air seal around duct shafts and flues installed through ceilings, walls and flooring in new and existing homes.
Blown Insulation for Existing Vented Attic Description Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.
Batt Insulation for Existing Vented Attics Description Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.