Air Sealing Details For Attic Hatch

Apply self adhesive foam weatherstrip tape to the top edge of the stop. The stops provide a wider surface for attaching the weatherstrip and a space to mount hook and eye fasteners. Weatherstrip the attic access hatch or door.

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In our ongoing series on air sealing we are going to focus on the dreaded attic hatch or as allison baile s of energy vanguard so eloquently calls it a mind blowing hole in your building envelope.

Air sealing details for attic hatch.

If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening. Instead of crunching the numbers as he did one just needs to walk by one in a hallway during the middle of summer to know it isn t insulated. Gaskets are generally more durable and produce a tighter seal. This can also be beefed up to a sealing gasket like the one on your refrigerator door.

The standard air sealing recommendation is to install a compression bulb weatherstrip. Seal the attic access. Sealing the attic hatch or door finish up by sealing the access hatch with self sticking weather stripping. Cut 1 3 boards to fit the perimeter of the opening and nail them on with 6d finish nails.

Air seal the hatch perimeter the plywood hatch rests on a small wood strip lip.

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