Introduction - Getting Started - Materials Checklist - Plug Holes - Seal Furnace Flues - Foam or Caulk - Complete Job - Attic Duct Sealing - Recessed Can Lights - Sealing Basement
Finish up by sealing the access hatch with self-sticking foam weatherstrip (photos 11 and 12).
If your hatch rests directly on the moldings, add 2-1/2 in. wide stops around the opening. The stops provide a wider surface for attaching the weatherstrip and a space to mount hook-and-eye fasteners. Position the screw eyes so the weatherstrip is slightly compressed when the hooks are latched. Cut a piece of fiberglass or rigid foam board insulation the same size as the attic hatch and nail or glue it to the back of the hatch. If you have pull down attic stairs or an attic door, these should likewise be sealed in a similar matter: weatherstrip the edges and put a piece of rigid foam board insulation on the back of the door. Treat the attic door like a door to the outside.
11. Weatherstrip the Door
Weatherstrip the attic access hatch or door. Cut 1x3 boards to fit the perimeter of the opening and nail them on with 6d finish nails. Apply self-adhesive foam weatherstrip tape to the top edge of the stop.
12. Attach Fasteners
Attach hook-and-eye fasteners to the door and stops. Position the eyes so that the weatherstrip is compressed when you latch the hooks.
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