Roof vents vs whirly birds.
Electric attic fan or turbine.
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A turbine has a series of vanes that spin as wind passes through them.
Turbine movement creates the same type of draft as electrically powered devices.
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.
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It is a con to make people think the spinning action is like running a fan and mechanically drawing hot air out.
Full length ridge vent in combination with soffit vents is best.
One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.
Solar powered fans have photovoltaic cells that capture energy from the sun and use it to drive the fan.
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You would probably benefit more with the wind driven turbines than the attic fans.
Turbine fans have angled slits cut into a capped cylinder which create a continuous fan blade.
The whirly bird or turbine vents are worse than useless.
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.
Interesting i take it you now don t have turbines just the attic fans.
A ridge vent runs across the top of the roof s peak.
The wind rotates the fan blade causing air movement in the attic as air is pulled out through the.
Find out why fan vents don t work and how a ridge and soffit vent system is better for your roof and attic.
Read about roof vents and why fan or turbine vents are not as efficient as ridge vents.
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Solar fans don t require any electricity wind or attic pressure to spin.
They make noise too.
A solar fan is able to actively pull more air into your attic than a turbine can.