Aura Roof Exhaust Fan with Curb Mount Flange | CFM: 8000 30″ Diameter 8″ Tall Collar | Model AF-30-C8-CMF


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30 Inch Aura Attic Fan with Curb Mount Flange | AF-30-C8-CMF | 8,000 CFM

The 30 inch Aura Attic Fan with Curb Mount Flange is 30 inches in diameter and has an 8 inch tall collar. The model number is AF-30-C8-CMF and exhausts air out at 8,000 CFM. All 30 inch gravity fans come with a standard 34″ x 34″ flange to fit over roof curbs.

Installation: For low slope or flat roof ventilation

The Aura Gravity Fan exhausts air continuously even when the motor is off. This attic fan works passively because of the Venturi Effect. When the wind blows against the outer louvers this creates an upward draft which allows air to freely flow in and out of the vent. This Attic Fan is also available with an optional Shut-Off Switch, Thermostat and Humidistat (THSOS).

The curb mount flange allows for easy installation on roof curbs of the same diameter. In addition, the curbed flange can be used as a hatch to access the ductwork below. We recommend installation on roofs with a pitch of 2/12 or less.

Motor Type:  PSC – Open Ventilation

With 1 horsepower and 8,000 CFM, this 30 inch vent is perfect for ventilating large attic spaces or plenums.

How it works:

Even when the motor is off, the attic fan will still ventilate passively. In other words, even the smallest breeze can create exhaust ventilation to draw air out of the fan.

This movement of air is proportional to the wind speed and is measured in cubic feet per minute (CFM). Therefore, wind speeds of 11 mph for a 30 inch attic fan produces 1,692 CFM of air exhaust for attic ventilation.

For any questions please see the frequently asked questions page. If you still have questions, email the sales team at [email protected] or call 845-565-7770

Color Chart
A Roof Curb below would fit this 30 inch diameter product

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  • Roof Curb with Insulation (Inside Opening: 31” Outside Length & Width: 33” Height: 12”) | Model RC-30-H12-Ins

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  • Roof Curb (Inside Opening: 31” Outside Length & Width: 33” Height: 12”) | Model RC-30-H12

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  • Roof Curb (Inside Opening: 31” Outside Length & Width: 33” Height: 18”) | Model RC-30-H18

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  • Roof Curb with Insulation (Inside Opening: 31” Outside Length & Width: 33” Height: 18”) | Model RC-30-H18-Ins

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Base Price (Not Including Shipping and Options):


Shut-off Switch Options:
SOS - Simple Shut-Off Switch
THSOS - Temperature and Humidity Sensor Shut-off Switch
TSOS - Temperature Sensor Shut-off Switch

Our products can be painted with a durable baked-on powder coating surface finish.
Click in a color square to choose a paint color.
Click "Premium Colors" to see the full set of color options.

Brand: Active VentilationUPC(GTIN): 843951001647 Model AF-30-C8-CMF Category:
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