Good attic ventilation is important for preventing ice dams in the winter.
Attic fan vs wind turbine.
Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof.
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 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.
It is costing you to run the attic fans.
These can be ridge vents wind turbines or the flat vents your roofer wants to install.
A turbine has a series of vanes that spin as wind passes through them.
Solar fans don t require any electricity wind or attic pressure to spin.
A ridge vent runs across the top of the roof s peak.
A solar fan is able to actively pull more air into your attic than a turbine can.
Turbine type vents may be electrically powered or they may turn as the wind blows.
Attic must have 5 sq.
Use an electric motor to create a draft that pulls air out through the fan.
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.
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.