How To Air Seal Attic Reddit

Don t forget to check behind attic kneewalls.

How to air seal attic reddit. I m trying to air seal this entire thing. Use expandable foam spray for any gaps and cavities larger than inch but no larger than 3 inches. Also it appears the previous owner just piled a bunch of fiber glass insulation in one part of the attic over the master bedroom. Use caulk to seal air leaks around plumbing ducting and electrical wiring.

When you re done sealing your attic bypasses push the insulation back into place with an old broom handle or stick as you back out of the attic. Install foam gaskets behind outlet and switch plates. Watch and see how to air seal attic penetrations to improve energy efficiency and prevent warm air rising inside a home from entering the attic space. I can t exactly put a piece of ply wood over the joists because the a cross beams are in the way.

To properly seal your attic hatch also known as an attic door or scuttle hole at a minimum you should apply weather stripping and ensure the attic side of the attic door is insulated. Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11.