42 inch Aura Gravity Ventilator with Curb Mount Flange | Model AV-42-C12-CMF

The 42 inch Aura Gravity Ventilator with Curb Mount Flange is 42 inches in diameter and has a 12 inch tall collar. The model AV-42-C12-CMF has 1,384 inches of Net Free Area (NFA). All 42 inch gravity ventilators come with a standard 46″ x 46″ square curb mount flange.

Benefits:

• Energy efficient
• Inner louvers prevent insects and animals from entering the vent
• Round aerodynamic design can withstand harsh weather and wind forces beyond 200 mph
• Vent head is removable for easy installation
• Noiseless – does not require electricity to exhaust air

Installation: For low slope and flat roofs on a roof curb

This roof vent has a curb mount flange which allows for easy installation on AVP's prefabricated roof curbs. In other words, the flange will fit over roof curbs or an existing base with a 45 inch diameter.

42 inch Aura Gravity Vents are compatible with AVP's 12 inch tall, and 18 inch tall roof curbs.

How it Operates:

The Aura Gravity Ventilator works like a roof turbine but 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, forcing air to flow out of the vent. Thus, removing heat from the attic in the summer and moisture in the winter. This allows for year-round ventilation on low slopes or flat roofs.

Even the smallest breeze can create exhaust ventilation to draw air out of the gravity vent. Therefore, wind speeds of 11 mph for a 42 inch Gravity Ventilator produces 3,807 CFM of air exhaust.

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.

For any questions, email the sales team at [email protected] or call at 845-565-7770. See the Roof Pitch Diagram to determine the pitch of your roof.