Attic Air Circulation Fan

An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents.

Attic air circulation fan.

These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and automatically exhausts the attic space. The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. That cuts cooling costs and prolongs shingle life.

Many homes already have some sort of gable vent since this type of attic ventilation has been the industry standard for many years. In the winter warm moist air seeps into the attic from the living space below. In the summer good attic ventilation reduces heat buildup. A gable mounted fan is a good choice for attic ventilation since the fan can usually be installed in an existing opening in the gable wall.

Attic fan ventilation attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. Hot air exhaust vents located at the peak of the roof allow hot air to escape. For ease of installation this is the best option. Good ventilation allows the heat and moisture to escape.