Aura Gravity Roof Ventilator

Our Roof Louver, The Pop Vent for Exhaust Painted Brown

Roof Ventilation Turbo Charged

The Aura Gravity Roof Ventilator vigorously removes heat from the attic in the summer and moisture from the attic in the winter. How does it do this? The Aura Gravity Ventilator functions like a spinning roof turbine, but does not need to spin in order to work. Functioning with no moving parts the Aura Gravity Ventilator pulls hot attic air every time the wind blows. This is done by a phenomenon called the “Venturi Effect”. The Aura Gravity Ventilator also ventilates the roof through other means. “The Stack Effect” this is when hot air rises out of the roof through the roof vents. As the hot air rises, it accelerates to the outside. This powerful dynamic ventilates the attic constantly.

All this ventilation happens without any rain or snow from entering the Aura Gravity Ventilator. Birds, insects or animals will not be able to penetrate the Aura’s fortress of three rows of metal louvers.

Engineered and certified for both flat roof ventilation and steep slope ventilation, the Aura Gravity Ventilator is available for both residential and commercial buildings. UL listed this gravity roof vent is rated to withstand wind pressures of over 50 PSF, which is equivalent to wind speeds exceeding 200 mph! The Aura Gravity Ventilator is also Florida State, Texas Department of Insurance Listed and conforms to CAL FIRE standards. Available with standard flashing or curb mount flashing the Aura Gravity Ventilators can be installed onto asphalt shingle roofs, membrane roofs and on roof curbs alike.

Pick a ventilator that is the right size and height and choose the color that will look best on your roof. If you have any questions, please email or call us today!

Diameter	NFA Net Free Area in Sq. In.	IBC 1/300	2" Collar	4" Collar	6" Collar	8" Collar	12" Collar
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

Listed below are the Engineering Benefits of the Aura Gravity Ventilator’s Multi Louver Design.

Louvers Ventilate better than insect screen
Louvers prevent insects from entering the vent
The inner most row of louvers have a 1/8th inch opening which provides vigorous air movement and eliminates back pressure.
Wind driven rain and snow will not get passed the three rows of metal louvers.
Animals cannot and will not break through these metal vents louvers.
Animals are breaking through plastic roof vents.

How the Aura Gravity Ventilator works (in greater detail).

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 or vortex creates suction towards the center of the vent (throat). This suction creates the necessary vacuum to extract out the hot and moisture attic air within. This function is demonstrated by the cartoon animation on the top right hand side of this page. 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.

Adaptable

All of AVP’s roof vents can be fitted with tail pipe adapters if exhausting out a duct system, such as a bathroom or range hood fan exhaust is needed.

The Aura Gravity Ventilator line is great for any roof application because of how customizable it is. You can choose the height, diameter, and the type of base you may need. Flanges can be installed directly on roof decks or roof curbs with our curb mount flange option. Vents are available as a retrofit onto existing roof turbine bases.

The diameter size of all roof vents determines the Net Free Area, also known as the "NFA". NFA is the measured amount of opening each vent offers at each specific size. to be available for venting air through a specific vent size. The calculator below will find the overall number of vents needed to effectively ventilate the targeted attic space.

Once you have the area, pulldown to select the specific vent diameter to show the number of vents of that size which would ventilate the specified area with both 1/300 and 1/150 rule.

Number of Exhaust Attic Vents Needed for the 1/300 rule.

Number of Exhaust Attic Vents Needed for the 1/150 rule

*Please note
The roof vent calculation values shown above are for the exhaust portion of the roof. The same amount of net free air inches is needed for air intake as well. Proper roof ventilation consists of 50% air exhaust and 50% air intake.

UL Certificate of Compliance Active Ventilation Aura Vents

Our Aura Vents have UL Certification. Check out other details and specifics on UL Product IQ™(Note: UL now requires you to have a free account to access this page)

UL's Online Certifications Directory.

Aura Gravity Roof Ventilator

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