Roof Ventilation Turbo Charged

The Aura Gravity Roof Ventilator  removes heat from the attic in the summer and in the winter. This allows for year-round ventilation. It functions like a spinning roof turbine but without any moving parts. Aura Gravity Ventilators rely on the Venturi Effect when wind blows against the outer louvers. As a result, this creates an upward draft allowing air to freely flow in and out of the vent. Even the smallest breeze can create exhaust ventilation so that air is drawn out of the gravity vent. This movement of air is proportional to the wind speed and is measured in cubic feet per minute (CFM).

The Aura Gravity Ventilator also ventilates the roof through “The Stack Effect”. This is when hot air naturally rises out through the roof vents.

The Aura Gravity Ventilator works like a roof turbine but with no moving parts.

The Collar Height is the height of the neck of the vent.

	NFA Net Free Area in Sq. In.	IBC 1/300
4"	12	50	AV-4-C2	AV-4-C4	AV-4-C6	AV-4-C8	AV-4-C12
6"	28	116	AV-6-C2	AV-6-C4	AV-6-C6	AV-6-C8	AV-6-C12
8"	50	208	AV-8-C2	AV-8-C4	AV-8-C6	AV-8-C8	AV-8-C12
10"	78	325	AV-10-C2	AV-10-C4	AV-10-C6	AV-10-C8	AV-10-C12
12"	113	470	AV-12-C2	AV-12-C4	AV-12-C6	AV-12-C8	AV-12-C12
14"	144	600	AV-14-C2	AV-14-C4	AV-14-C6	AV-14-C8	AV-14-C12
16"	200	833	AV-16-C2	AV-16-C4	AV-16-C6	AV-16-C8	AV-16-C12
18"	254	1058	AV-18-C2	AV-18-C4	AV-18-C6	AV-18-C8	AV-18-C12
20"	314	1308	AV-20-C2	AV-20-C4	AV-20-C6	AV-20-C8	AV-20-C12
24"	452	1883	AV-24-C2	AV-24-C4	AV-24-C6	AV-24-C8	AV-24-C12
30"	706	2941	AV-30-C2	AV-30-C4	AV-30-C6	AV-30-C8	AV-30-C12
36"	1017	4237		AV-36-C4	AV-36-C6	AV-36-C8	AV-36-C12
42"	1384	5766		AV-42-C4	AV-42-C6	AV-42-C8	AV-42-C12
48"	1808	7533		AV-48-C4	AV-48-C6	AV-48-C8	AV-48-C12

The 1/8 inch louvers are designed to prevent rain, snow, insects and animals from entering inside the vent.

The Aura Gravity Ventilator comes in an array of diameters and collar heights allowing for installation in any climate zone. See the Climate Zone Chart to determine the proper collar height for installation in your area. In other words, this vent can be used for both flat and steep sloped roofs. It has been engineered to be used for both residential and commercial buildings. However, if you are looking to ventilate a duct, we offer vents with a tailpipe adapter. On the other hand we also have Static Vents with curb mount flanges to be installed on roof curbs.

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 us at [email protected] or call at 1-800-ROOFVENT. If you are looking to determine the pitch of your roof, see the Roof Pitch Diagram.

How the Aura Gravity Ventilator works:

As you know by now the Aura Gravity Ventilator uses wind to help exhaust out hot attic air with no moving parts. Here is a deeper explanation on how this gravity ventilator accomplishes this function. To start, when wind enters the outer row of louvers, the angle of the louvers causes the wind to spin around the circumference of the gravity vent. Spinning air creates suction towards the center of the vent. This suction creates the necessary vacuum to extract out the heat and moisture from the attic. This function is demonstrated by the animation above. Air flow ratings were documented by Georgia Tech.

Aura Gravity Ventilators are made up of aluminum, making them durable, lightweight and will not rust. Gravity ventilators can be painted by our durable powder coating system, see our color options powder coat colors.