Air Vent Air Hawk 18.4 in. H x 20.2 in. W x 20 in. L x 12 in. Dia. Black Aluminum Turbine and Base

Air Vent Air Hawk 18.4 in. H x 20.2 in. W x 20 in. L x 12 in. Dia. Black Aluminum Turbine and Base Wind Turbines are a type of attic exhaust vent that make up half of a balanced attic ventilation system for each roof. Intake vents make up the other half of the system. Together they help remove any built-up heat and moisture inside the attic for year-round ventilation. A non-electric alternative to ventilation turbine vents use the natural force of wind and air pressure to spin and vent out stale attic air. They do it with a series of specially shaped vanes that catch the wind and provide rotary motion. This pulls hot humid air from the attic. Turbine vents provide a low-cost ventilation alternative in areas where wind speeds of at least 5 mph are typical.