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.
Turbine vents on roof.
Roof vents need to move hot humid air from the attic to the outdoors so that humidity doesn t build up and cause mold rot or other moisture problems that findlay roofing regularly sees when dealing with attic issues.
The popular ridge and soffit ventilation systems and the traditional metal pot vents are also passive ventilation systems.
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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.
As soon as it starts to spin it vacuums air out of your attic.
A turbine vents spins with the slightest breeze.
A turbine vent is a passive ventilation device.