Air leaks: What you need to know
Manage air leaks and waste less energy in your home
Steps you can take to a more efficient home.
Air leaks can cause energy waste, dry air, and more. Don’t worry, though, we can help you find the best ways to reduce or prevent them.
Checking the interior of your home
1. The paper test
Looking for a quick and easy way to tell if your home is leaking air? Simply shut a door or window on a piece of paper. If you can pull it out, you’ve got a gap and your home is leaking air.
2. Test for more air leaks with a blower door test
Using a large blower door fan at the exterior door to depressurize the air inside, a qualified energy professional can locate the places where air is flowing into or out of your home through cracks.
3. Weatherproofing and caulking
Simple and straightforward, weatherstripping and caulking around your windows and doors can help keep your home sealed.
4. Insulate your home
Choose the right insulation for your attic and walls to increase the comfort of your home, basement and garage while preventing air leaks and reducing energy costs.
5. Check the exterior of your home
Manage air leaks and waste less energy in your home by checking for any cracks and holes in your home’s exterior, where two different building materials meet. These areas include outdoor water faucets, all exterior corners and the foundation of the bottom exterior where brick or siding meet. If you find any air leaks during your inspection, consider contacting a qualified energy professional who will help you locate specific leaks and provide additional expert advice on how to make your home more airtight.
Quiz: Are you an insulation expert?
Blown-in or batt and blanket? Spray foam or rigid board? See how much you know about insulation.
Buying Guide: Getting started with insulation
While you may never see your insulation, picking the right materials and rating levels can make a huge difference to the comfort of your home. Learn how to select the right insulation.