How To Air Seal Attic Hatch

Carefully pull down the finish trim.
How to air seal attic hatch. Air seal the trim the first step is air sealing the finish trim and enclosure around the attic hatch. Sealing the attic hatch or door finish up by sealing the access hatch with self sticking weather stripping. Weatherstripping use around doors and windows. Weatherstrip the attic access hatch or door.
The door hatch should close all the way pressing down on the gasket to create a full seal. Cut 1 3 boards to fit the perimeter of the opening and nail them on with 6d finish nails. Use spray foam to air seal these openings if they exist. From inside the attic check for any openings holes or fenestrations into the knee wall surrounding area.
Apply self adhesive foam weatherstrip tape to the top edge of the stop. Once you have the materials you can begin to seal and insulate the knee wall access door through these steps. The stops provide a wider surface for attaching the weatherstrip and a space to mount hook and eye fasteners. They also give you an easy area to add hook fasteners if needed.
Carefully pull down the finish trim. Inspect the weatherstripping gaskets around the attic hatch opening. These new wood stops provide a larger area for attaching new weatherstripping. How to seal air leaks you can seal most air leaks with a combination of caulk weatherstripping expandable foam spray and mastic sealant.
Pray that the installer used finish nails and not say ring shank nails. Apply weather stripping to the door to create a seal.