Air Intake Roof Louver | 24″ Diameter 12″ Tall Collar | 452 Sq. In. NFA | Model PV-24-C12


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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 Roof Louver Air Intake | Pop Vent | PV-24-C12

The 24 inch Pop Vent Air Intake Vent is ideal for maintaining proper attic ventilation. The PV-24-C12 is 20 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 24 inch Pop Vent has 452 inches of Net Free Area (NFA) and a standard 36” x 36” square flange.

Installation: Ideal for low slope or flat roofs

24 inch diameter roof vents are commercial size, therefore, are ideal in commercial settings. For those looking to ventilate their homes, please view roof vents with a smaller diameter.

This 24 inch attic vent is suitable for installation in climate zones 1-8.

To determine the number of vents you may need for proper attic ventilation, see our Vent Calculator.

How it works:

The Air Intake Roof Louver provides fresh air into the attic or plenum.  Without proper rooftop ventilation, heat and moisture 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 24 inch Pop Vent is great for residential roof applications because of its low profile. It can also be painted to match the color of the asphalt shingles.

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

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.

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Pop Vent - Technical Drawing Downloads

Product LinkDrawing- Unmarked Drawing- Measurements Drawing- Cut Away with Measurements
PV-24-C12dwg file icon - click to download CAD (dwg) fileunmarked drawingpdf file icon - click to download pdf file
dwg file icon - click to download CAD (dwg) fileWith Measurements drawingpdf file icon - click to download pdf file
dwg file icon - click to download CAD (dwg) fileCut Away and Measurements drawingpdf file icon - click to download pdf file

Pop Roof Vent - Installation Instructions

Product LinkInstallation Instructions (Shingled Roof) - pdfInstallation Instructions(Flat Roof) - pdf
PV-24-C12N/AInstallation Instructionpdf file icon - click to download pdf file

Calculate number of Model PV-24-C12 Vents Needed for a Given Area

Enter the Width and Length of the attic space you need to ventilate to calculate the area. You may also enter the area directly in the "Area" field. It is not necessary to hit the Return or Enter key (which will refresh this page), just enter numbers in the fields.

Enter width of space to calculate area (or enter Area below)

Enter width of space to calculate area (or enter Area below)

If you know it, you may enter the area directly here

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.

Results Appear Here

*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.

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Our products can be painted with a durable baked-on powder coating surface finish.
Click in a color square to choose a paint color.
Click "Premium Colors" to see the full set of color options.

Brand: Active VentilationUPC(GTIN): 843951008196 Model PV-24-C12 Category:
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