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.
Video describing why duct leakage tests including tests total leakage and leakage to the outside are done with the duct blaster set to depressurize rather than pressurize the duct system. Video 9 of 9.
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.
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.
Video describing how to begin a residential blower door and duct blaster test, including turning off the gas water heater and central furnace or air conditioner. Video 1 of 9.
Video describing how to set up for a residential blower door and duct blaster test, including why to sequence the blower door before the duct leakage test. Video 3 of 9.
Video describing how to conduct a residential blower door and duct blaster test, including how to determine the home’s volume to determine whole-house air leakage. Video 5 of 9.
Video describing how to conduct a residential blower door and duct blaster test, including how to calculate the home’s whole-house air leakage in air changes per hour using the cfm reading and the home’s volume in cubic feet. Video 6 of 9.
Video describing how to conduct a residential blower door and duct blaster test, including an efficient method for setting up the blower door equipment and how to set up the fan rings and the manometer. Video 4 of 9.
Video describing how to conduct a residential duct air leakage test, including why and how to seal off all of the supply air registers, including kickplate registers. Video 7 of 9.
Video describing how to conduct a residential duct air leakage test, including how to hook up the duct blaster to the return register and how and why to neutralize the pressure of the home. Video 8 of 9.
Video describing the process of installing solar shingles on a residential building, highlighting key aspects in wiring the system back to the inverter, and explaining the mechanics of solar shingles and how they create renewable solar energy.
Video describing how to seal the intersection between the concrete foundation wall and polystyrene foam exterior sheathing of the framed wall above using SIGA tape, which exhibits adhesion to both polystyrene and concrete so that the joint is both water and airtight.
Video describing how to properly install exterior stone on a house by providing a drainage plane to prevent moisture from infiltrating the wall assembly.