If you decide to add more turbine vents to your roof be sure to buy ones that are aluminum.
Roofs need turbines.
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The turbines are adjustable so that the spinning part is level even though the roof is slanted.
Roof turbines are typically 12 or 14 inches square so they take up minimal space on your roof.
Roof turbines remove attic moisture and reduce the risk of costly roof damage.
Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents.
A roof turbine is a relatively small vent that utilizes the wind to remove humid air from an attic.
These will not rust.
When the wind blows regularly these vents can move more air than other types of vents but they are not effective when the air is still.
Without proper ventilation the extra moisture in the heated air will cause wood rot mildew mold and exterior problems like ice dams.
Typically a rooftop will use two or three of these turbines depending on the size of the roof.
During winter months warm air rises into your attic.
Naturally the action of wind turbines depends on the wind.
All things being equal wind driven turbine vents also known as a whirlybird roof vent do move more air than flat vents but only when the wind blows.
Master flow 12 in.
Not all turbines will fit all roof pitches.
Wind driven roof vents will pull more air from the attic but only when the wind is blowing.
As the wind passes through the turbine vent a series of vanes within the turbine spin cycling humid air out of the attic.