AV-42-C08 | Aura Vent 42″ Diameter 8″ Collar
From: $998.00
Click the Logo to see the full documentation of Active Ventilation Products approvals on the Florida DBPR web site. 
Active Ventilation Products Aura Vent series has been tested and approved by the State of Florida
CAD Downloads (dwg format):Unmarked Drawing,Drawing With Measurements,Cutaway with Measurements
Basic dimensions of the Aura Vent and it’s identifying attributes. Primary identifying dimensions of vents and fans are the inside diameter of the Head, which equals the diameter of the hole being vented, and the height of the Collar which is the solid tube between the Head of the vent and the Flange which attaches to the roof.
Inside Diameter:
Outside Diameter:
Square Flange (side length):
Height of Head:
Collar Height:
Height of Flange:
Total Height with Collar and Flange:
Louvers are the vertical openings in the vent, which facilitates the flow of air, while keeping animals, insects, debris, and embers out. The combination of inner and outer Louvers on our signature “Aura” series of vents and fans are shaped to create a positive vacuum effect which draws air out of the vent, utilizing a physical principle known as the Venturi effect.
Louver Height (inside):
Louver Height (outside):
Size of opening btwn blades (inside):
Size of opening btwn blades (outside):
Expected snow and rain in your region and the pitch of the roof are the key consideration when choosing the height of the collar of your roof vents. Zones 1 and 2 are not expected to sustain significant snow packs, while zones 3-7 are likely to experience snow, possibly for weeks or months. Vent collars under 4 inches are inappropriate for flat (0/12 pitch) roofs because even heavy rain can splash water into a shorter vent.
Minimum Pitch Capacity:
Maximum Pitch Capacity (Standard Vent):
Maximum Pitch Capacity (Modified):
Free Air Space:
Free Air Space:
1:150 Ventilation Rule:
1:300 Ventilation Rule:
The Venturi effect stimulated by even small breezes creates a positive movement of air out of the vent without the need of any part of the vent to move. This movement of air is proportional to the wind speed, and can be measured in Cubic Feet per Minute or Cubic Meters per Minute.
4 MPH Wind:
5.2 MPH Wind:
7.4 MPH Wind:
9.8 MPH Wind:
11 MPH Wind:
Description
Aura Roof Ventilator 42″ diameter Aluminum Gravity Vent with a 8″ collar height and 52″ x 52″ square flange.
Model AV-42-C08 has 1,384 square inches of Net Free Air Space.
Best used on flat roof applications.