How To Seal Attic Access Hatch
Use spray foam to air seal these.
How to seal attic access hatch. Apply self adhesive foam weatherstrip tape to the top edge of the stop. Remove your existing attic hatch and measure its size. If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening. How to insulate and air seal an attic access hatch.
From inside the attic check for any openings holes or fenestrations into the knee wall surrounding area. Seal the attic access. Carefully pull down the finish trim. Cut four pieces of polystyrene rigid insulation about 1 2 inch smaller than the dimensions of the hatch.
Affix foam insulation to. Air seal the trim the first step is air sealing the finish trim and enclosure around the attic hatch. Pray that the installer used finish nails and not say ring shank nails. The stops provide a wider surface for attaching the weatherstrip and a space to mount hook and eye fasteners.
The latch should lay flush against the frame. Weatherstrip the attic access hatch or door. The insulation will both slow heat loss and add ballast to the hatch to improve the seal at the weatherstripping. Apply weather stripping to the door to create a seal.