(1.5 CEUs) The pressure pan measures duct pressures during a blower door test. If you measure pressure at a duct register during a blower door test, that indicates that outdoor air is leaking into or out of the building. Pressure-pan testing isn’t a quantitative measurement of duct leakage, but it does help you to know the approximate location and the relative amount of duct leakage.
Pressure Pan Testing (Mini Course)
