Pop Vent Retrofit Roof Louver | 20″ Diameter | Model PV-20-RF


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20 inch Intake Retrofit Roof Vent | Pop Vent Retrofit Model PV-20-RF

The 20 inch Pop Vent Retrofit is for replacing existing attic vents. The PV-20-RF is 20 inches in diameter and has 314 inches of Net Free Area (NFA).

This roof vent will fit over an existing base with a diameter of 20 inches. It's a perfect replacement for turbine vent heads. Turbine vents frequently stop turning entirely due to corrosion. However, Pop Vent Retrofits are made from durable rust-free aluminum.


  • Keeps your home comfortable and energy efficient
  • Inner louvers prevent insects and animals from entering the vent
  • Round aerodynamic design can withstand harsh weather
  • Noiseless – does not require electricity to exhaust air


The Pop Vent Retrofits will fit over an existing base allowing for easy installation without damaging the roofing material. Intake roof vents allow outside air to enter into attics and ventilation spaces. As a result, creating proper ventilation.

How it works:

The 20 inch Pop Vents is a static vent that will continually ventilate the air while preventing precipitation from entering. The vertical louvers also keep out insects and animals which allows for proper airflow. In addition, the round design is aerodynamic to withstand wind speeds up to 200 mph.

For help with installing, please view the Installation Guides. Hardware is included to attach to the base or pipe. 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

RAL Color Chart

Click below to see or download full technical drawing for this product

Pop Vent Retrofit Roof Louver

Product LinkDrawing- UnmarkedDrawing- MeasurementsDrawing- Cutaway
PV-20-RFdwg 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

Click below to see or download full Installation Instructions for this product

Installation Instructions - pdf
Installation Instructionpdf file icon - click to download pdf file

Calculate number of Model PV-20-RF 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): 843951007427 SKU: PV-20-RF Category:
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