Air Vent Air Hawk 21.3 in. H X 14 in. D Mill 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.

• • 21 vanes, all riveted top and bottom
• • Internally braced; suitable for 3/12 to 1212 roof pitch
• • Maintenance-free top and bottom dual bearing system
• • Turbine head and base design
• • Requires intake ventilation for proper performance
• • Part of a balanced attic ventilation system for year-round airflow