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How to properly vent an attic in South Louisiana?

The powered fan in the attic of my new house does not work. The house is about 40 years old. I went to replace and after talking to some people decided reaplce the electric fan with a wind turbine Whirly Bird. My questions are a few … A bird wind Whirly need for work, or that the rising warm air to spin it? 14 How many "I Whirly Bird installed for a 1500 square feet of attic space limited? Is there any way to see if there are good / sufficient air flow from ceiling? Overnight, can set the temperature to72 and click and go, but it more, so good. During the day, the AC is running all day, if I set it at 72 or 76. The house will be 74 during the day. I'm in the process of installing a radiant barrier and blowing in insulation, but I am so confused as to the ventilation appropriate in the attic. They say that 1 m of ventilation for every 150 feet of space … How can I solve everything? Every site says to do different things. Thanks

Someone in this old house installed a solar powered attic fan. I was surprised at how easy it was to install and how well it worked. solar fan Ceiling great race because they are on the roof facing the sun. Also, you do not have to worry about electrical outlets or wiring. And they work best when you need them more – when the sun fell on her roof. They are slightly more expensive than solar electric ceiling fans, but I think you are very fast.

wind turbine roof vent, roof power vent, roof exhaust vents – amit9998@gmail.com

BIB-12 MILL Lomanco 12-Inch Whirlybird Turbine Ventilator $34.99 Featuring permanently lubricated upper and lower ball bearings, the Lomanco 12-inch whirlybird turbine ventilator ensures long life and no maintenance. It reduces winter ice build-up, as well as energy bills. Made with all-aluminum, rust-free construction, this internally braced turbine ventilator withstands winds up to 147 MPH. With a rigid, spider-type structure, it’s riveted at every connection…

Lomanco, Inc. GT-12 12-Inch Galvanized Turbine $41.38 The Lomanco 12-inch galvanized turbine fits any 7/12 roof pitch, meaning any roof that rises 7 inches for every 12 inches it runs. Constructed with .025-inch stamped galvanized steel, this exhaust vent is available internally and externally braced. It features permanently lubricated ball bearings. Ideal for residential or light commercial use, this galvanized turbine comes with a lifetime warranty…

Air Vent Inc. 12 Extern Turbine Head 52604 Roof Turbines $32.80 WTE12 12″ Externally Braced Wind Turbine Head, Mill, Galvanized, 345 CFM At 5 MPH Winds, 544 CFM At 8 MPH Winds & 969 CFM At 15 MPH Winds, Can Be Used With Any 12″ Turbine Base….