How To Air Seal Attic Reddit

Install foam gaskets behind outlet and switch plates.

How to air seal attic reddit. I can t exactly put a piece of ply wood over the joists because the a cross beams are in the way. 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. Use expandable foam spray for any gaps and cavities larger than inch but no larger than 3 inches. Don t forget to check behind attic kneewalls.

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. Also it appears the previous owner just piled a bunch of fiber glass insulation in one part of the attic over the master bedroom. Dig up the insulation piling it in the areas that you have confirmed with your diagram there is nothing to air seal and when you are done use a rake to cover everything back up make sure you give proper curing time for the foam and that you attempt to fluff up the insulation that was compressed. I m trying to air seal this entire thing.

Better yet there are high quality products such as the attic gator designed to both seal and insulate attic access doors and scuttle holes. Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11.