How Do Roof Turbine 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 do roof turbine vents work. 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 turbine vent wind driven roof vents will pull more air from the attic but only when the wind is blowing. A single 14 inch diameter turbine vent that is subjected to 15 mph winds can expel up to 1 342 cfm of air. How to install turbine vents the installation of a turbine vent is nearly identical to a static vent.

A roofer will from the attic mark a spot near the ridge of the roof he may first use nails from the attic to mark preferred spots between two rafters. Since turbines are attached directly to attic spaces they can siphon away that moist air effectively. For an attic to ventilate properly it must have a balanced system with equal amounts of 50 intake and 50 exhaust. 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.

How do turbine roof vents work. The intake should be installed at the soffits or blocking where the walls meet the 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.