To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now.
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.
Roof ventilation calculator enter your attic area or length and width to determine your ventilation needs.
Width or area.
Thanks for your interest in our attic ventilation calculator.
The home ventilating institute hvi recommends that powered attic ventilators provide at least 10 air changes per hour to equalize attic temperature.
You can personalize the calculator for your customer and include your contact information.
Select ventilation product flex roll ridge vent multi roll multi purpose vent rigid roll ridge.
Save this simple excel file to your computer and use it any time.
Gaf ventilation calculator proper attic ventilation can help reduce the load on your air conditioner.
With this tool you can quickly and easily estimate your ventilation needs.