Aura Gravity Ventilator | 42″ Diameter 8″ Tall Collar | 1384 Sq. In. NFA | Model AV-42-C8

$1,023.00

Specifications
Image Gallery
Description
Colors
Drawings
Installation
Vent Calculator
Add To Cart

42 Inch Aura Gravity Ventilator | AV-42-C8

The 42 inch Aura Gravity Ventilator is 42 inches in diameter and has an 8 inch tall collar. The model number is AV-42-C8 and has 1,384 inches of Net Free Area (NFA). All 42 inch gravity ventilators come with a standard 52″ x 52″ square flange.

Where to Install:

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

42 inch diameter roof vents are considered industrial size therefore should be used in industrial 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. This movement of air is proportional to the wind speed and is measured in cubic feet per minute (CFM). Therefore, wind speeds of 11 mph for a 42 inch Gravity Ventilator produces 3,807 CFM of air exhaust for attic ventilation.

Email the sales team at [email protected] or call at 1-800-ROOFVENT for any questions. 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.

Colors
Color Chart

Aura Gravity Roof Ventilator - Technical Drawing Downloads

Product LinkDrawing- Unmarked
Drawing- Measurements
Drawing- Cutaway
AV-42-C8dwg file icon - click to download CAD (dwg) fileunmarked drawingpdf file icon - click to download pdf filedwg file icon - click to download CAD (dwg) fileWith Measurements drawingpdf file icon - click to download pdf filedwg file icon - click to download CAD (dwg) fileCut Away and Measurements drawingpdf file icon - click to download pdf file

Aura Roof Vent - Installation Instructions

Product LinkInstallation Instructions - Shingled Roof - pdfInstallation Instructions- Flat Roof - pdf
AV-42-C8N/AInstallation Instructionpdf file icon - click to download pdf file

Calculate number of Model AV-42-C8 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.


Select Options and Click "Add To Cart" button below

Base Price (Before options):

$1,023.00

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): 843951007823 Model AV-42-C8 Category:
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram