A ridge vent runs across the top of the roof s peak.
Attic fan vs wind turbine.
It is costing you to run the attic fans.
A solar fan is able to actively pull more air into your attic than a turbine can.
Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof.
Solar fans don t require any electricity wind or attic pressure to spin.
The wind rotates the fan blade causing air movement in the attic as air is pulled out through the turbine and replaced with outside air.
Good attic ventilation is important for preventing ice dams in the winter.
The sun does that.
Attic must have 5 sq.
Turbine fans have no power other than wind so when the.
Turbine type vents may be electrically powered or they may turn as the wind blows.
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.
My experience with the attic fan usually 1500 cfms is that they don t stay ahead of the heat production during full sun and only help in late afternoon.
You would probably benefit more with the wind driven turbines than the attic fans.
These can be ridge vents wind turbines or the flat vents your roofer wants to install.
Use an electric motor to create a draft that pulls air out through the fan.