ORLANDO, Fla. — In the new home construction and retrofit markets, tighter building codes and the desire to become more energy efficient is driving innovation in the HVAC ductwork and sheet metal ...

Q. The duct for my bathroom exhaust fan runs along the attic floor, then rises abruptly to go through a vent in the wall. I have noticed that water vapor condenses inside the duct and the water ...

In many high-end new-build projects, ductwork is routinely insulated to help minimize energy loss as conditioned air travels from the HVAC units through the ductwork. But duct insulation is being used ...

When fire department personnel respond to a commercial kitchen range hood fire with fire possibly extending into the exhaust duct above in a high-rise building, the two primary considerations that ...