June 15, 2015 AIR REPAIR: Duct-leakage testing kits are typically made up of a duct-testing fan, pressure gauge, speed controller tubing, and flexible duct. HVAC professionals across the country are ...

covers revised leakage criteria and builds on the proven methods for testing ductwork for air leaks from the first edition. Contains updates to the expected leakage rates for ductwork constructed to ...

They will be published after undergoing a final accuracy review before publication. A key update to the standard is the broadening of duct leakage testing to include ducts operating at 3-inch WG ...

Having a contractor inspect the duct insulation and test the ducts would help identify whether the system has significant air leakage that needs to be repaired. Cool roofs: An e-mail from a ...