How Do Roof Turbine Vents Work

How to install turbine vents the installation of a turbine vent is nearly identical to a static vent.

How do roof turbine vents work.

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. Since turbines are attached directly to attic spaces they can siphon away that moist air effectively. 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. The intake should be installed at the soffits or blocking where the walls meet the roof.

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. Because warm air rises up the wind powered vents with their spinning action tend to suck the air outside. 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.

How much air must be moved. A single 14 inch diameter turbine vent that is subjected to 15 mph winds can expel up to 1 342 cfm of air. Wind driven turbine vent wind driven roof vents will pull more air from the attic but only when the wind is blowing.