How To Air Seal Attic Reddit

Better yet there are high quality products such as the attic gator designed to both seal and insulate attic access doors and scuttle holes.

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. 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. 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.

If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the opening. Use caulk to seal air leaks around plumbing ducting and electrical wiring. Also it appears the previous owner just piled a bunch of fiber glass insulation in one part of the attic over the master bedroom. Don t forget to check behind attic kneewalls.

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. 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.