48-inch Aura Gravity Ventilator with Curb Mount Flange | Model AV-48-C8-CMF
The 48-inch Aura Gravity Ventilator with Curb Mount Flange is 48 inches in diameter and has an 8-inch tall collar. The model AV-48-C8-CMF has 1,808 inches of Net Free Area (NFA). All 48-inch gravity ventilators have a standard 52" x 52" square curb mount flange.
Benefits:
- Energy efficient
- Removes heat from the attic in the summer and moisture in the winter
- Inner louvers prevent insects and animals from entering the vent
- Round aerodynamic design can withstand harsh weather and wind forces beyond 200 mph
- The curb mount flange allows for easy access to the attic or duct below
- Noiseless – does not require electricity to exhaust air
Installation: On a roof curb
This roof vent has a curb mount flange, allowing easy installation on AVP's prefabricated roof curbs or any other roof curb with a 51 7/8-inch x 51 7/8-inch square shape. If the curb is to be covered in roofing material, then the curb should measure 51 1/2 inches x 51 1/2 inches.
48-inch Aura Gravity Vents are compatible with AVP's 12-inch and 18-inch roof curbs.
How it Operates:
The Aura Gravity Ventilator works like a roof turbine with no moving parts.
Gravity vents rely on the Venturi Effect, which occurs when the wind blows against the outer louvers to create an upward draft. As a result, air is forced to flow out of the vent, removing heat from the attic in the summer and moisture in the winter. This allows for year-round ventilation on low slope or flat roofs.
Even the slightest breeze can create exhaust ventilation to draw air out of the gravity vent. Therefore, wind speeds of 11 mph for a 48-inch Gravity Ventilator produce 5,711 CFM of air exhaust for attic ventilation.
Aura Gravity Vents are UL-listed and rated up to 50+ PSF or wind pressure above 200 MPH. They are certified by the Texas Department of Insurance and Florida State Approved.
For any questions, email the sales team at sales@roofvents.com or call at 845-565-7770. See the Roof Pitch Diagram to determine the pitch of your roof.
