They may not work as well in areas that don t get enough wind but they are easier to install.
Attic air vent turbine.
They do it with a series of specially shaped vanes that catch the wind and provide rotary motion.
Turbine vents provide a low cost ventilation alternative in areas where wind speeds of at least 5 mph are typical.
A turbine is installed directly on the top of a roof and uses wind power to suck hot and humid air out of the attic.
Air vent airhawk 12 in aluminum externally braced roof turbine vent.
This pulls hot humid air from the attic.
Brown aluminum internally braced wind turbine model tib12sbr 50 00 50 00.
Air vent 12 in.
A ridge vent runs across the top of the roof s peak.
Set your store to see local availability.
Item 863694 model tob12sbr.
Unlike turbines this venting style does not have any moving parts.
A turbine has a series of vanes that spin as wind passes through them.