How To Air Seal Attic Reddit

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.

How to air seal attic reddit.

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. Better yet there are high quality products such as the attic gator designed to both seal and insulate attic access doors and scuttle holes. Use expandable foam spray for any gaps and cavities larger than inch but no larger than 3 inches. I can t exactly put a piece of ply wood over the joists because the a cross beams are in the way.

I m trying to air seal this entire thing. Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11. Use caulk to seal air leaks around plumbing ducting and electrical wiring. 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.

Don t forget to check behind attic kneewalls. Install foam gaskets behind outlet and switch plates.