Attic Vent Soffit

Enter square footage calculate or enter the square footage of the attic or area to be vented.

Attic vent soffit.

An attic s intake vents are most commonly installed directly in the soffit either as individual vents spaced every few feet or as one continuous perforated soffit running the entire length of. Of total vent space needed. Multiply the length of the attic times the width in feet to find the attic area then divide by 150 to find the total square feet of vent space needed. 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.

If you don t know how your roof vents work or if you re unsure about your attic ventilation in general you should talk to a roof inspector about. Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof. Master flow 15 amerimax home products 1 deflect o 1 gibraltar building products 1. Length x width of attic in feet 150 total sq.

Soffit vents may leave air trapped at the top of your attic. Air vent 2 3 in. Roofing attic ventilation. 22 in x 3 in galvanized steel eave vent item 2180321 model ev223 1 8.

Grab a flashlight and inspect your attic during the winter. Master flow 4 in. Ft divided by 150 equals 10 sq. Resin circular mini wall louver soffit vent in white 4 pack model rlsc4 view the master flow intake vents 12 54 12 54.

If you see dampness or frost you need better roof ventilation and some attic vents. Vents come in various styles. Almost all homes are fitted with some kind of roof vents at the peak of the roofline be it individual roof vents hip roof ventilation and many homes have gable vents as well. Air flows in through the soffit vents and out through the roof vents.

A 50 x 30 attic would have a total area of 1 500 sq. More ways to filter. Soffit vents come in several sizes and styles including small round discs and rectangular grilles. Calculate the total vent area needed.

They re most effective when used in conjunction with a continuous ridge vent. A soffit vent is simply a vent installed into the underside of your home s eaves called the soffit that permits fresh outside air to be drawn up into the attic.