Find Air Leaks In Attic

You might also notice some patches of ice or frost.

Find air leaks in attic.

In most homes however the most significant air leaks are hidden in the attic and basement. Each of these cutouts is a likely air leak. Close the attic access door or hatch behind you to maximize the effect. You may even be able to locate bypasses visually by looking for insulation being blown about.

And just as you can feel the air from a leaky balloon you ll be able to confirm leaks in the attic by feeling the draft with your hand. From the attic side of your ceiling find the fixtures you noted. Common attic air leaks include. Climb into your attic.

Turn on your heat or air conditioning system so it s constantly blowing. While most of the air leaks in your attic are probably covered up by insulation you can detect these air leaks by looking for patches of dirty or dark insulation. Gather your supplies and suit up. Electrical connections for fixtures fans and outlets require a hole cutout in your ceiling drywall.

Use this map from energy star to learn where typical air leaks holes and gaps are located in the home. Know where common attic air leaks are located. But locating leaks can be difficult because they are often hidden under your insulation. Air leaks also commonly occur at the edge of top plates which normally have a small gap of less than an inch between the plates and drywall.

Step only on the joists or lay plywood across the. Sealing the ducts is easy once you find the leaks. Most air leaks can be found around light fixtures plumbing pipes ventilation rafters chimneys and other areas. Any small crack or gap in the attic can be a source of.