Dropped Ceiling/Soffit Below Unconditioned Attic Description Guide describing how to insulate and air seal dropped ceilings and soffits to prevent air leakage.
Insulating and Air Sealing Existing Non-ICAT Recessed Lights Description Guide describing air sealing of non-ICAT recessed lights installed in accessible attics of existing homes.
Spray Foam Insulation Applied to Existing Attic Floor Description Guide describing how to apply spray foam insulation to ceilings in existing homes.