Pop Vent | The Roof Louver Air Intake

One of AVP's Premier Roof Vents: The Pop Vent

The Commercial Air Intake Pop Vent Roof Louver provides make up air for ducts, attics or plenums on flat or low slope roofs. For attic ventilation to occur, you need to remove hot moist air from your attic. This Commercial  Roof Louver will bring in cool fresh dry air. This allows the attic to pressurize and exhaust out stale air.

The 1/8 inch opening between louvers under the lid will prevent rain, snow, insects, and animals from entering inside the roof vent. The vertical louvers work better than insect screens by allowing air to move freely into the vent for proper attic ventilation.

The Pop Vent comes in an array of different diameters and collar heights to fit the need of your roof. Pop Vents that Exhaust Air are also available.

The Pop Vent roof louver has been installed in over 1 million homes since it debuted 35 years ago. To determine the number of roof vents you may need, see our Vent Calculator.

For any questions please see the frequently asked questions page. If you still have questions, email the sales team [email protected] or call 845-565-7770. If you are looking to determine the pitch of your roof, see the Roof Pitch Diagram.

All of AVP's Pop Vents are UL Listed and rated up to 50+ PSF or wind pressure above 200 MPH.  Certified by Texas Department of InsuranceFlorida State Approved & Conforms to the Standards of CALFIRE.

Scroll down for Vent Calculator

Calculate Pop Vent Ventilation for given area

Enter below the Width and Length of the attic space you intend to ventilate. You may also enter the size of the attic directly in the "Area" field at the bottom.


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, pulldown to select the specific vent diameter to show 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.


UL Certificate of Compliance For Active Ventilation Products Pop Vent Products Our Pop Vents have 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)
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