Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof.
Attic fan vs wind turbine.
The sun does that.
It is costing you to run the attic fans.
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.
Good attic ventilation is important for preventing ice dams in the winter.
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.
Attic must have 5 sq.
Turbine fans have no power other than wind so when the.
You would probably benefit more with the wind driven turbines than the attic fans.
A ridge vent runs across the top of the roof s peak.
A solar fan doesn t rely on the wind and it actually has a more powerful motor in it so it keeps the temperature of your attic regulated regardless of wind conditions.
A solar fan is able to actively pull more air into your attic than a turbine can.
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.
Solar fans don t require any electricity wind or attic pressure to spin.
Turbine type vents may be electrically powered or they may turn as the wind blows.
Use an electric motor to create a draft that pulls air out through the fan.