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The biggest air leaks will often come from attics, basements and around chimneys. Identifying and addressing the air leaks in these areas will have a greater impact on improving your home’s comfort and reducing your utility bills. However, there are many air leaks that you can quickly identify and seal yourself such as leaks around electrical outlets, windows and doors. For more information, visit ENERGY STAR®.

Did you see a building science or energy efficiency term you did not understand? Check out our glossary.