Air Sealing Homes

Publication Type:
Fact Sheet

Published / Updated:

By sealing air leaks in your home, you can improve comfort, decrease drafts, and save energy. Attics, basements, and crawl spaces are the biggest sources of air leaks in the home. In attics, sealing the entry door with weather stripping and adding rigid board insulation to the access can help decrease air leakage. Additionally, insulating bypasses and properly sealing vents can help. In the basement, a variety of air leak sources occur at header and foundation walls from dryer vents, water and gas pipelines, as well as cable and telephone cables. Properly sealing around these penetrations can reduce air leakage. Download this fact sheet to learn more about sealing air leaks, improving comfort, and eliminating drafts in your home.

  • sealing attics
  • sealing basement penetrations
  • materials

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