Emerging Technologies: Improved Duct Sealing

Nothing is certain but death and taxesand perhaps, leaky ducts. All ducts have some degree of air leakage but, unlike taxes, keeping leakage levels down to a reasonable level is possible. In practice, however, ducts leak more than they should. Measurements made by Lawrence Berkeley National Laboratory (LBNL) of commercial building duct systems found, on average, duct leakage exceeded the ASHRAE recommended leakage classes by roughly a factor of 20.¹

Citation: ASHRAE Journal, vol. 45, no. 5, May 2003



Product Code(s): D-17048