The leak is usually caused by flashing around the ventilation area being improperly installed or nonexistent. Homeowners will run into leaking problems around this area when they don’t hire a roofing specialist.

Is it OK to leave attic fan on all night?

Generally speaking, an attic fan should run as long as it takes to replace all the attic air with outside air.

How long do attic fans usually last?

Typically, attic fans have a lifespan of up to 15 years as long as they are properly maintained. This usually involves having the attic fan professionally serviced by an HVAC technician who will clean the fan shutters, lubricate the oil ports, and wash the fan blades as well as inspect the unit for any repairs needed.