An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Report identifying common air leakage pathways typically found in two-story townhouse developments, including recommendations for cost effectively identifying and correcting air leakage in these multifamily buildings.
Research study to help development of an application protocol for aerosol sealing of building shells that will eventually be demonstrated on buildings in retrofit and new construction.
Video showing air sealing of the sill plate behind the baseboard in an existing home with canned spray foam to stop air leakage at the base of the wall.
Report identifying the steps to take, with the help of a qualified home performance contractor, to seal unwanted air leaks while ensuring healthy levels of ventilation and avoiding sources of indoor air pollution.
Guideline describing the importance of the different types of multifamily building attics and their unique challenges, and outlines strategies and materials used in air-sealing them.
Document providing background and approach for the prep work necessary prior to adding attic insulation - focusing on combustion safety, ventilation for indoor air quality, and attic ventilation for durability.
Video of a pro tip contractors can share with homeowners showing how you can reduce bypass around the return grille air filter by taping the seam around the filter with a removable tape like masking tape.
Fact sheet describing research sponsored by DOE's Building America program to research the importance of attic air-sealing and best practice attic air-sealing techniques for new and existing homes.
Document covering two fundamental retrofit strategies for air sealing around air handling systems that are located within the living space in an enclosed closet.