Aura Gravity Ventilator | 24″ Diameter 12″ Tall Collar | 452 Sq. In. NFA | Model AV-24-C12

$343.00

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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.

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24 Inch Aura Gravity Ventilator | AV-24-C12

The 24 inch Aura Gravity Ventilator is 24 inches in diameter and has a 12 inch tall collar. The model number is AV-24-C12 and has 452 inches of Net Free Area (NFA). All 24 inch gravity ventilators come with a standard 30″ x 30″ square flange flashing.

Where to Install:

Exhaust vents with a collar height of 8 inches are typically for low slope or flat roof ventilation. However, if installed on the upper portion of the roof, this roof vent can go on a 0/12 to 5/12 pitch roof in all climate zones.

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

How it Operates:

The Aura Gravity Ventilator works like a roof turbine but with no moving parts.

Aura Gravity Vents rely on the Venturi Effect when the wind blows against the outer louvers. As a result, this creates an upward draft allowing air to freely flow in and out of the vent.

Even the smallest breeze can create exhaust ventilation so that air is drawn out of the gravity vent. Therefore, wind speeds of 11 mph for a 24 inch Gravity Ventilator produces 1,128 CFM of air exhaust for attic ventilation.

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. If you are looking to determine the pitch of your roof, see the Roof Pitch Diagram.

Aura Gravity 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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Aura Gravity Roof Ventilator - Technical Drawing Downloads

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Aura Roof Vent - Installation Instructions

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AV-24-C12N/AInstallation Instructionpdf file icon - click to download pdf file

Calculate number of Model AV-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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Base Price (Not Including Shipping and Options):

$343.00

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Brand: Active VentilationUPC(GTIN): 843951007939 Model AV-24-C12 Category:
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