Wind Turbines, also referred to “Whirly Birds” in some parts of the country and a very common and low cost venting system you will find used in regions where winds are consistently 5mph or greater. A non-electric alternative to ventilation, these 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.
Wind turbines are available in both internally and externally braced styles
Two-piece base fits roof pitches from 3/12 up to 12/12
Large flashing allows for easy installation
Galvanized steel or aluminum construction in 12- and 14-inch sizes
Comes in a variety of colors
Provide year-round ventilation
Low cost and high efficiency make them an extremely popular ventilation component