Attic Vent Soffit

Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof.

Attic vent soffit.

Air flows in through the soffit vents and out through the roof vents. 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. 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. Air vent 2 3 in.

Of total vent space needed. Vents come in various styles. Enter square footage calculate or enter the square footage of the attic or area to be vented. If you see dampness or frost you need better roof ventilation and some attic vents.

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. Roofing attic ventilation. Resin circular mini wall louver soffit vent in white 4 pack model rlsc4 view the master flow intake vents 12 54 12 54. Length x width of attic in feet 150 total sq.

Grab a flashlight and inspect your attic during the winter. These vents allow outside air to enter the attic at the lowest point of the roof along the underside of the eave. For the best results place roof ventilation near the roof s peak and soffit vents in the eaves. Rectangular white weather resistant aluminum soffit vent sold in a carton of 50 only.

A 50 x 30 attic would have a total area of 1 500 sq. They re most effective when used in conjunction with a continuous ridge vent. Soffit vents come in several sizes and styles including small round discs and rectangular grilles. 22 in x 3 in galvanized steel eave vent item 2180321 model ev223 1 8.

Calculate the total vent area needed. Master flow 4 in. 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.

More ways to filter. Soffit vents may leave air trapped at the top of your attic.