How To Figure Out Roof Ventilation
Measure the length and width of the attic floor space to be ventilated.
How to figure out roof ventilation. For balanced ventilation an equal amount of intake vent area net free area should also be installed. Next multiply the 4 square feet into cubic inches. Enter square footage calculate or enter the square footage of the attic or area to be vented. Our soffit vents round back vents pop vents and universal vents make excellent intake vents.
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. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. If your roof is 1200 sq ft soffit floor space you will need 4 sq feet of roof ventilation. Use our easy 3 step attic ventilation calculator to determine your attic square footage and ventilation needs.
1 cubic foot is 12 x 12 144 cubic inches.