Intake vents located at the lowest part of the roof under.
Cool attic turbine.
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A small 12 inch diameter turbine vent with a constant wind speed of 5 miles per hour mph can remove 347 cubic feet of air per minute cfm from the attic space.
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.
Attic must have 5 sq.
A turbine has a series of vanes that spin as wind passes through them.
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A single 14 inch diameter turbine vent that is subjected to 15 mph winds can expel up to 1 342 cfm of air.
Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
These can be ridge vents wind turbines or the flat vents your roofer wants to install.
A ridge vent runs across the top of the roof s peak.