Turbine Roof Vents How They Work

Dependable construction has made a video on how to replace a turtle vent on a roof.

Turbine roof vents how they work.

Because warm air rises up the wind powered vents with their spinning action tend to suck the air outside. Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of 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. A single 14 inch diameter turbine vent that is subjected to 15 mph winds can expel up to 1 342 cfm of air.

Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents. While a turbine looks a little complex at first glance it s actually very simple. A turbine vent is a passive ventilation device. A ridge vent runs across the top of the roof s peak.

The popular ridge and soffit ventilation systems and the traditional metal pot vents are also passive ventilation systems. When the wind blows the right way it turns the fan which in turn draws up air from the attic and disperses it. A turbine has a series of vanes that spin as wind passes through them. Intake vents located at the lowest part of the roof under.

The same steps can be used when doing a whirlybird roof turbine vents. A turbine vents spins with the slightest breeze. The intake should be installed at the soffits or blocking where the walls meet the roof. Much like a window this round vent is powered by the wind.

It houses a circular fan that s very sensitive to breezes. As soon as it starts to spin it vacuums air out of your attic. Find roof turbine vents at lowe s today. Unlike turbines this venting style does not have any moving parts.

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. Wind driven roof vents will pull more air from the attic but only when the wind is blowing. 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.