How Many Roof Turbines Do I Need

There are also gable and roof fans which actively pull the hot air out of the attic.

How many roof turbines do i need.

Since turbines are attached directly to attic spaces they can siphon away that moist air effectively. Enter square footage calculate or enter the square footage of the attic or area to be vented. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. One static vent style is the turbine.

The turbines are adjustable so that the spinning part is level even though the roof is slanted. Not all turbines will fit all roof pitches. Appear too out of place on the roof. Turbine vents located higher on the roof s surface turbine vents make use of a wind powered turbine to suck all the moisture and hot air out of the attic.

The table below is a guide that can be applied to most common roof types and pitches. These can be ridge vents wind turbines or the flat vents your roofer wants to install. There s no point in wasting time and money getting the wrong ventilator for your roof though. You will first need to know the surface area of the roof in order to calculate how many turbine vents you will need.

Use this simple diy guide to figure out which turbine ventilator best suits your needs. Soffit vents to the peak of the roof. Thus if your attic is 450 square feet you need roof vents equaling 3 square feet. These specialty vents do not.

Other types there are also several other types of roof vents including dome or box shaped vents that run through the roof itself. How many vents do i need. That rule can change if the slope of your roof is more than the average 6 12 slope a rise of six feet for a run of 12 feet because there will be more space heat and moisture to ventilate in the attic. In addition pay attention to the maximum roof pitch that will work with the turbines.

All you need to know about attic ventilation. Calculation for common roof types. Using a roof turbine ventilator to increase the flow of air in your attic is a great idea. Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof.

The total nfa of the roof vents you need should be split 50 50 between intake and exhaust. As a general rule your roof needs 1 square foot of vent area for every 150 square feet of attic space. Attic must have 5 sq. These will not rust.