Seal Attic Hatch
Sealing the attic hatch or door finish up by sealing the access hatch with self sticking weather stripping.
Seal attic hatch. If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening. Cut four pieces of polystyrene rigid insulation about 1 2 inch smaller than the dimensions of the hatch. Once you have the materials you can begin to seal and insulate the knee wall access door through these steps. 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. 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. Carefully pull down the finish trim. Remove your existing attic hatch and measure its size.
How to insulate and air seal an attic access hatch. Hardware 2 small bungee cords to seal it tight. Apply weather stripping to the door to create a seal. Air seal the trim the first step is air sealing the finish trim and enclosure around the attic hatch.