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.

If you decide to add more turbine vents to your roof be sure to buy ones that are aluminum. Thus if your attic is 450 square feet you need roof vents equaling 3 square feet. These can be ridge vents wind turbines or the flat vents your roofer wants to install. Enter square footage calculate or enter the square footage of the attic or area to be vented.

There s no point in wasting time and money getting the wrong ventilator for your roof though. 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. 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. Other types there are also several other types of roof vents including dome or box shaped vents that run through the roof itself.

Since turbines are attached directly to attic spaces they can siphon away that moist air effectively. The table below is a guide that can be applied to most common roof types and pitches. Use this simple diy guide to figure out which turbine ventilator best suits your needs. As a general rule your roof needs 1 square foot of vent area for every 150 square feet of attic space.

How many vents do i need. The turbines are adjustable so that the spinning part is level even though the roof is slanted. Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof. These will not rust.

In addition pay attention to the maximum roof pitch that will work with the turbines. One static vent style is the turbine. Good attic ventilation is important for preventing ice dams in the winter. Not all turbines will fit all roof pitches.

Soffit vents to the peak of the roof. Attic must have 5 sq. All you need to know about attic ventilation. Calculation for common roof types.

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. 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. Using a roof turbine ventilator to increase the flow of air in your attic is a great idea. The total nfa of the roof vents you need should be split 50 50 between intake and exhaust.