Seal Attic Hatch

Air seal the trim the first step is air sealing the finish trim and enclosure around the attic hatch.

Seal attic hatch.

The stops provide a wider surface for attaching the weatherstrip and a space to mount hook and eye fasteners. 2 thick foam board 4 8 sheet with an r value of 10 or greater 15 foam weather stripping the wider the better 1 can great stuff foam or similar 1 tube liquid nail or other construction adhesive 8 16 penny nails misc. Diy sealing the attic hatch seal trim to ceiling create air tight seal between hatch and trim. Pray that the installer used finish nails and not say ring shank nails.

Remove your existing attic hatch and measure its size. Sealing the attic hatch or door finish up by sealing the access hatch with self sticking weather stripping. Once you have the materials you can begin to seal and insulate the knee wall access door through these steps. Hardware 2 small bungee cords to seal it tight.

The insulation will both slow heat loss and add ballast to the hatch to improve the seal at the weatherstripping. How to insulate and air seal an attic access hatch. Cut four pieces of polystyrene rigid insulation about 1 2 inch smaller than the dimensions of the hatch. Carefully pull down the finish trim.