How To Seal A Drafty Attic

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.

How to seal a drafty attic.

Seal the wall plate where the top of walls meets the floor ceiling joists in the attic to ensure air does not leak at the outer edges of your attic roof. The attic can also be a major source of air leaks. Even if your home was built with proper insulation it degrades over time so it s essential you replace the insulation as needed. If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the opening.

For super drafty windows you can seal an especially leaky window shut for the season with dap seal n peel a caulk is designed to be easily removed when warmer weather arrives. Do the same around the top plates of interior walls underneath the attic floor. Insulate the drafty attic properly in some cases your attic may be drafty from poor insulation. You can do this with expanding foam sealant.

Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11. If you plan on doing this project by yourself it s best to use insulated fiberglass rolls since this is the easiest type of insulation to install. You can spray expanding foam between the drywall and framing. By recognizing the drawbacks of a poorly sealed thermal envelope being able to recognize leaks and knowing how to close them you will experience greater comfort health and efficiency in.

Simply add filler insulation on top of the existing layer of insulation to seal any drafts. Insulating the attic is the best way to seal these leaks. Weatherstrips are an inexpensive way to help seal drafty doors and windows.