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 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 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 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.
When flashing one of a house’s biggest potential leaks — where the eave overhang meets a vertical wall — editorial advisor Mike Guertin chooses to err on the side of caution to control water flow and not rely solely on step flashing.