Turbine Roof Vents How They Work

A turbine has a series of vanes that spin as wind passes through them.

Turbine roof vents how they work.

Find roof turbine vents at lowe s today. Dependable construction has made a video on how to replace a turtle vent on a roof. A turbine vents spins with the slightest breeze. Because warm air rises up the wind powered vents with their spinning action tend to suck the air outside.

While a turbine looks a little complex at first glance it s actually very simple. Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. A single 14 inch diameter turbine vent that is subjected to 15 mph winds can expel up to 1 342 cfm of air. How do turbine roof vents work.

Turbine vents use a combination of wind and convection to extract stale hot air from inside your home and replace it with the cool clean air from the outside. Whirlybird roof turbine vents are as easy to install as turtle vents and are one of the most popular ways remove hot air out of the attic space. When the wind blows the right way it turns the fan which in turn draws up air from the attic and disperses it. The popular ridge and soffit ventilation systems and the traditional metal pot vents are also passive ventilation systems.

Wind driven roof vents will pull more air from the attic but only when the wind is blowing. The same steps can be used when doing a whirlybird roof turbine vents. 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. Much like a window this round vent is powered by the wind.

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. Intake vents located at the lowest part of the roof under. The intake should be installed at the soffits or blocking where the walls meet the roof. Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents.

A ridge vent runs across the top of the roof s peak. Unlike turbines this venting style does not have any moving parts. It houses a circular fan that s very sensitive to breezes.