Exhaust Fan Ducting
I'm installing an exhaust fan in a bathroom. The ducting (rigid) will be run in the attic and will terminate at a wall vent on an exterior wall. Living in a cold climate I understand its important to insulate the duct. What is the best and easiest way to insulate the duct?
Just wrap it with fiberglass insulation, if you don't, the warm humid air will condense in the vent pipe and drip back into the fan.