How Many Roof Turbines Do I Need

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.

How many roof turbines do i need.

Not all turbines will fit all roof pitches. One static vent style is the turbine. Soffit vents to the peak of the roof. There are also gable and roof fans which actively pull the hot air out of the attic.

Use this simple diy guide to figure out which turbine ventilator best suits your needs. 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. Attic must have 5 sq. Thus if your attic is 450 square feet you need roof vents equaling 3 square feet.

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. The total nfa of the roof vents you need should be split 50 50 between intake and exhaust. These can be ridge vents wind turbines or the flat vents your roofer wants to install. Appear too out of place on the roof.

As a general rule your roof needs 1 square foot of vent area for every 150 square feet of attic space. If you decide to add more turbine vents to your roof be sure to buy ones that are aluminum. Using a roof turbine ventilator to increase the flow of air in your attic is a great idea. Calculation for common roof types.

Enter square footage calculate or enter the square footage of the attic or area to be vented. These will not rust. You will first need to know the surface area of the roof in order to calculate how many turbine vents you will need. There s no point in wasting time and money getting the wrong ventilator for your roof though.

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. How many vents do i need. In addition pay attention to the maximum roof pitch that will work with the turbines. The turbines are adjustable so that the spinning part is level even though the roof is slanted.

Other types there are also several other types of roof vents including dome or box shaped vents that run through the roof itself. These specialty vents do not. All you need to know about attic ventilation. Good attic ventilation is important for preventing ice dams in the winter.