How Many Turbines Do I Need On My Roof

Not all turbines will fit all roof pitches.

How many turbines do i need on my roof.

If you decide to add more turbine vents to your roof be sure to buy ones that are aluminum. There are also gable and roof fans which actively pull the hot air out of the attic. The first step in determining how many vents you need is to calculate the net free area nfa required. This means that for every 300 square feet of enclosed attic space 1 square foot of ventilation is required with half at the upper portion exhaust.

Unlike turbines this venting style does not have any moving parts. There s no point in wasting time and money getting the wrong ventilator for your roof though. These will not rust. How many turbine vents you will need depends on a number of factors including the size and type of building.

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. A turbine has a series of vanes that spin as wind passes through them. Use this simple diy guide to figure out which turbine ventilator best suits your needs. Thus if your attic is 450 square feet you need roof vents equaling 3 square feet.

Having the correct number of turbine vents will provide an effective and balanced system. Most codes use the 1 300 rule for minimum residential attic ventilation recommendations. Furthermore this will ensure that a continuous supply of air moves through the desired space. In addition pay attention to the maximum roof pitch that will work with the turbines.

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