How Many Turbines Do I Need On My Roof

Using a roof turbine ventilator to increase the flow of air in your attic is a great idea.

How many turbines do i need on my roof.

Having the correct number of turbine vents will provide an effective and balanced system. A turbine is installed directly on the top of a roof and uses wind power to suck hot and humid air out of the attic. In addition pay attention to the maximum roof pitch that will work with the turbines. There are also gable and roof fans which actively pull the hot air out of the attic.

Not all turbines will fit all roof pitches. Use this simple diy guide to figure out which turbine ventilator best suits your needs. Unlike turbines this venting style does not have any moving parts. Furthermore this will ensure that a continuous supply of air moves through the desired space.

Thus if your attic is 450 square feet you need roof vents equaling 3 square feet. There s no point in wasting time and money getting the wrong ventilator for your roof though. Most codes use the 1 300 rule for minimum residential attic ventilation recommendations. A ridge vent runs across the top of the roof s peak.

If you decide to add more turbine vents to your roof be sure to buy ones that are aluminum. How many turbine vents you will need depends on a number of factors including the size and type of building. A turbine has a series of vanes that spin as wind passes through them. As a general rule your roof needs 1 square foot of vent area for every 150 square feet of attic space.

The turbines are adjustable so that the spinning part is level even though the roof is slanted.