A turbine has a series of vanes that spin as wind passes through them.
Wind driven turbine attic ventilator.
Air vent airhawk 12 in aluminum externally braced roof turbine vent.
The perfect solution for passive attic or storm shelter ventilation or non powered vapor control we ve used these to control prevent the buildup of potentially dangerous vapors e g radon.
A single 14 inch diameter turbine vent that is subjected to 15 mph winds can expel up to 1 342 cfm of air.
Mount fans on your roof away from wind obstructions.
Wind driven turbine vent wind driven roof vents will pull more air from the attic but only when the wind is blowing.
How much air must be moved.
Item 863694 model tob12sbr.
Turbine fans have angled slits cut into a capped cylinder which create a continuous fan blade.
Get free shipping on qualified roof turbines or buy online pick up in store today in the building materials department.
Wind driven roof mount exhaust fans designed to spin freely with the slightest breeze these fans create a vacuum that draws air out from buildings and ventilation systems no electricity required.
Galvanized steel construction helps provide for strength and durability.
Gasoline in crawlspaces and under floor slabs.
The turbine ventilator operates by utilising the velocity energy of the wind to induce air flow by centrifugal action the centrifugal force caused by the spinning vanes creates a region of low pressure area which draws air out through the turbine.
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.
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.
They are also known as turbine ventilators.
A durable wind driven turbine attic ventilator from grainger helps to remove hot attic air in summer and moisture laden air in winter.
Wind turbine attic vent turbine roof vent built in thermostat roof turbines black roof turbines roof toppers roof t tops.
Unlike turbines this venting style does not have any moving parts.
A ridge vent runs across the top of the roof s peak.