$209.00
This product has UL Certification. Check out other details and specifics on UL Product IQ™ (Note: UL now requires you to have a free account to access this page) UL’s Online Certifications Directory.
The 18 inch Pop Vent Air Intake Vent is ideal for maintaining proper attic ventilation. The PV-18-C12 is 18 inches in diameter with a 12 inch tall collar. In other words, this vent has 12 inches of clearance between the base and the inner louvers. In addition, the 18 inch Pop Vent has 254 inches of Net Free Area (NFA) and a standard 28” x 28” square flange.
18 inch diameter roof vents are considered commercial size therefore should be used in commercial settings. For those looking to ventilate their homes, please view roof vents with a smaller diameter.
This attic vent is suitable for installation in climate zones 1-8 however; the Pop Vent comes in an array of diameters and collar heights allowing for installation in any climate zone. See the Climate Zone Chart to determine the proper collar height for installation in your area.
To determine the number of vents you may need for proper attic ventilation, see our Vent Calculator.
For any questions please email us at [email protected] or give us a call at 1-800-ROOFVENT. If you are looking to determine the pitch of your roof, see the Roof Pitch Diagram.
The Air Intake Roof Louver provides fresh air into the attic or plenum. Without proper rooftop ventilation, heat and moisture can get trapped in the attic which may cause decay of the structure. This attic vent also helps to keep insulation dry in the winter to prevent the growth of mold. Additionally, the round design is aerodynamic to withstand wind speeds up to 200 mph. The 18 inch Pop Vent is great for commercial roof applications because of its low profile. It can also be painted to match the color of the asphalt shingles.
Pop 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.
| Product Link | Drawing- Unmarked | Drawing- Measurements | Drawing- Cut Away with Measurements |
|---|---|---|---|
| PV-18-C12 |    |  |  |
| Product Link | Installation Instructions (Shingled Roof) - pdf | Installation Instructions(Flat Roof) - pdf |
|---|---|---|
| PV-18-C12 | N/A |  |
The diameter size of all roof vents determines the Net Free Area, also known as the "NFA". NFA is the measured amount of opening each vent offers at each specific size. to be available for venting air through a specific vent size. The calculator below will find the overall number of vents needed to effectively ventilate the targeted attic space.
Once you have the area, the numbers shown below are the number of vents of that size which would ventilate the specified area with both 1/300 and 1/150 rule.
*Please note
The roof vent calculation values shown above are for the exhaust portion of the roof. The same amount of net free air inches is needed for air intake as well. Proper roof ventilation consists of 50% air exhaust and 50% air intake.
$209.00
