What is a Duct Leakage Test?
A duct leakage test is a procedure used to verify how much air leaks from the ducts of a building. It involves hooking a fan up to the duct system to pressurize the duct system in order to measure leakage. The state mandates renovations have a maximum leakage of 15% and new construction have a maximum leakage of 6%. The typical house’s ductwork leaks upwards of 30% of the conditioned air supplied to it.