AV-04-C08 | Aura Vent 4″ Diameter 8″ Collar
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- Installation Guide
- UL Certificate
Active Ventilation Products Aura Vent series has been tested and approved by the State of Florida
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.
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.
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.
This particular Aura Vent is 4 inches in diameter and has an 8 inch tall collar or neck (AV-04-C08) and has 12 inches of NFA. This product goes on flat roofs 0/12 to 2/12 pitch and is great for EPDM, PVC type roofs. . All our 4 inch aluminum gravity ventilators come with a standard 10″ x 10″ square flange or base.
The Aura Vent works like a roof turbine but with no moving parts. This static vent relies on the Venturi Effect (the creation of an upward draft) when the wind blows. Even the smallest breezes can create positive movement of air out of the vent. This movement of air is proportional to the wind speed, and can be measured in Cubic Feet per Minute or in Cubic Meters per Minute. Wind speeds of 11 MPH for example, produce 62 cubic feet of air per minute of attic ventilation.
Aura Vents are UL Listed and rated up to 50+ PSF or wind pressure above 200 MPH. Certified by Texas Department of Insurance, Florida State & California Wild Fire approved. Aura Vents are constructed entirely out of aluminum so therefore they will never rust but come with a 5 year warranty.