The 12 inch Round Back Static Roof Vent is 12 inches in diameter and has a 4 inch tall collar. In other words, this vent has 4 inches of clearance between the base and the inner louvers. The model RBV-12-C4 has 113 inches of net free area (NFA) which means each vent will ventilate 470 square feet of attic space.
To determine the number of roof vents you may need, see our Vent Calculator. Each 12 inch static vent comes with a 17” x 17” square flange.
This 12 inch roof vent is ideal for roofs with a 3/12 to 12/12 roof pitch. For a pitch of 3/12 or greater, install this vent no more than 3 feet from the ridge of the roof. Doing this will enable you to install your static vent in all climate zones.
The Round Back Static Roof Vents will remove radiant heat in the summer from the attic. It will also remove moisture from the attic in the winter. As a result, making these the ultimate solution for ventilating residential attics year-round. Ventilation helps to make a home more comfortable and energy efficient.
The vent lid is manufactured from one piece of spun aluminum which prevents rain and snow from entering the attic. The round design is aerodynamic to withstand wind pressure exceeding 200 mph. All Round Back roof vents are resistant to corrosion and will remain rust free for the life of the roof.
The inner louvers of the roof vent keep insects and animals from entering the attic. The louvers also allow the air to flow freely to the outside.
This 12 inch roof vent is also great for residential roof applications because of its aesthetically pleasing appearance. Having a low profile, the Round Back Vents can also be painted to match the color of asphalt shingle roofs.
For any questions please see the frequently asked questions page. If you still have questions, email the sales team at [email protected] or call 845-565-7770
AVP’s Round Back Static Vents are UL Listed and rated up to 50+ PSF or wind pressure above 200 MPH. Certified by Texas Department of Insurance, Florida State Approved & Conforms to the Standards of CALFIRE.
In addition, if you are looking to ventilate a duct, please see the Round Back Roof Jack for vents with a tailpipe adapter. AVP also offers Static Vents with curb mount flanges to go on roof curbs.