Attic Ventilation Calculator

Roof ventilation calculator enter your attic area or length and width to determine your ventilation needs.

Attic ventilation calculator.

Effective attic ventilation requires air to exit at or near the peak of the roof and replacement air to be drawn in under the eaves of the house via soffit venting. Our passive roof vents are ul certified and rated to withstand wind pressure in excess of 200 mph. Attic vent calculator for years we have been working with architects and specifiers to ensure affordable roof ventilation that upholds building code standards. Gaf ventilation calculator proper attic ventilation can help reduce the load on your air conditioner.

Width or area. Ventilation calculator 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. To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now. The home ventilating institute hvi recommends that powered attic ventilators provide at least 10 air changes per hour to equalize attic temperature.

Save this simple excel file to your computer and use it any time. You can personalize the calculator for your customer and include your contact information.