4" Roof Vent | Aura Gravity Ventilator | Model AV-4-C12
The 4-inch Aura Gravity Ventilator is 4 inches in diameter and has a 12-inch tall collar. The model number is AV-4-C12, and it has 12 inches of Net Free Area (NFA). All 4-inch gravity ventilators have a standard 10" x 10" square flange flashing.
Benefits:
- Keeps your home comfortable and energy-efficient
- Removes hot, moist air from the attic
- Prevents rain & snow, insects & animals from entering the vent
- Round aerodynamic design can withstand harsh weather and winds of 200+ mph
- The vent head is removable for easy installation
- Noiseless – does not require electricity to exhaust air
Where to Install:
Exhaust vents with a collar height of 12 inches are for low-slope or flat-roof ventilation. They can be installed on a 0/12 to 5/12 pitch roof in all climate zones. See the installation guides for help installing them.
The 4-inch roof vent is ideal for ventilating attics, bathroom fans, or range hoods. It removes heat during the summer and moisture during the winter to provide ventilation for low-slope or flat roofs.
How it Operates:
The Aura Gravity Ventilator works like a roof turbine with no moving parts.
Aura Gravity Ventilators rely on the Venturi Effect, which occurs when the wind blows against the outer louvers. This creates a spinning upward draft through the vent, allowing air to flow dynamically out of the attic. Even the slightest breeze can create exhaust ventilation to draw out air from the roof.
The Aura Gravity Roof Vents are made of durable, rust-free aluminum. The vent head has a flat, one-piece spun lid that prevents rain and snow from entering. The round aerodynamic design can withstand harsh weather and wind forces beyond 200 mph. Therefore, wind speeds of 11 mph for a 4-inch Gravity Ventilator produce 62 CFM of air exhaust for attic ventilation.
The inner louvers of the roof vent prevent insects and animals from entering the attic. The louvers also allow the air to flow freely to the outside.
AVP’s Aura Gravity Vents are UL-listed and rated up to 50+ PSF or wind pressure above 200 MPH. They are also certified by the Texas Department of Insurance and Florida State Approved.
If you have any questions, please see the frequently asked questions page. If you still have questions, email the sales team at sales@roofvents.com or call 845-565-7770.
