Air Sealing Doors Adjacent to Unconditioned Space Description Guide describing how to air seal doors that are next to unconditioned spaces.
Existing Skylights Repaired or Replaced and Fully Flashed Description Guide describing how to repair or replace skylights in existing homes.
Flashing of Wall Penetrations in Existing Homes Description Guide describing how to install flashing that is integrated with air and water control layers around piping, vents, and other wall penetrations as part of an exterior wall retrofit.