You may even be able to locate bypasses visually by looking for insulation being blown about.
Find air leaks in attic.
The dirt comes from dusty air leaking into your attic.
Know where common attic air leaks are located.
Turn on your heat or air conditioning system so it s constantly blowing.
In most homes however the most significant air leaks are hidden in the attic and basement.
Gather your supplies and suit up.
You might also notice some patches of ice or frost.
Each of these cutouts is a likely air leak.
Climb into your attic.
You ll have to pull back existing insulation to find them.
Electrical connections for fixtures fans and outlets require a hole cutout in your ceiling drywall.
Common attic air leaks include.
These are the leaks that significantly raise your energy bill and make your house uncomfortable.
From the attic side of your ceiling find the fixtures you noted.
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.
Sealing the ducts is easy once you find the leaks.
Any small crack or gap in the attic can be a source of.
Most air leaks can be found around light fixtures plumbing pipes ventilation rafters chimneys and other areas.
Use this map from energy star to learn where typical air leaks holes and gaps are located in the home.
Step only on the joists or lay plywood across the.
Close the attic access door or hatch behind you to maximize the effect.