• 6 inch Exhaust Fan with Curb Mount Flange | RBF-6-C4-CMF - Side
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Model RBF-6-C4-CMF | Round Back Exhaust Fan | 6" Diameter | 4" Collar | Curb Mount Flange

Model RBF-6-C4-CMF | Round Back Exhaust Fan | 6" Diameter | 4" Collar | Curb Mount Flange

RBF-6-C4-CMF

Round Back Exhaust Fan with Curb Mount Flange  

Price: $105.00 USD

$105.00 USD
Sale Sold out
Shut-off Switch Options:
SOS - Simple Shut-Off Switch
TSOS - Temperature Sensor Shut-off Switch
THSOS - Thermostat/Humidistat Shut-off Switch
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6 inch Exhaust Fan with Curb Mount Flange | RBF-6-C4-CMF - Side
Model RBF-6-C4-CMF | Round Back Exhaust Fan | 6" Diameter | 4" Collar | Curb Mount Flange
Drawings
Model RBF-6-C4-CMF | Round Back Exhaust Fan | 6" Diameter | 4" Collar | Curb Mount Flange
Drawings
Model RBF-6-C4-CMF | Round Back Exhaust Fan | 6" Diameter | 4" Collar | Curb Mount Flange
Drawings
Model RBF-6-C4-CMF | Round Back Exhaust Fan | 6" Diameter | 4" Collar | Curb Mount Flange Model RBF-6-C4-CMF | Round Back Exhaust Fan | 6

6-inch Attic Fan with Curb Mount Flange | Roof Mounted Power Attic Ventilator | Model RBF-6-C4-CMF

The 6-inch Attic Fan has a 6-inch diameter opening with a 4-inch tall collar, giving the fan 4 inches of clearance between the base and the inner louvers.

The model RBF-6-C4-CMF has a total cfm output of 120 and has a curb mount flange for roof curb installation.

Installation: Typically for low slope or flat roofs

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

How it works:

The fan plugs into a 110-volt outlet to operate. Max fan output is 120cfm.

This attic fan will exhaust air continuously even when the motor is off. It works passively because of the Stack Effect, which occurs when the outside temperature is colder than the inside temperature. Hot air rises, so the warmer indoor air is buoyant and presses upward to exit through the fan, allowing air to flow freely out of the attic.

This fan is ideal for venting out attics. Its round design is aerodynamic and is designed to withstand substantial wind speeds and all types of weather.

The 6-inch Round Back Fan is great for residential roof applications because of its low profile. It looks great on the roof and can also be painted to match the color of the asphalt shingles.

For 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

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Calculate number of Model  RBF-6-C4-CMF  Vents Needed for a Given Area

Enter the Width and Length of the attic space you need to ventilate to calculate the area. You may also enter the area directly in the "Area" field. It is not necessary to hit the Return or Enter key (which will refresh this page), just enter numbers in the fields.

Enter width of space to calculate area (or enter Area below)
Enter width of space to calculate area (or enter Area below)

If you know it, you may enter the area directly here

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, the numbers shown below are the number of vents of that size which would ventilate the specified area with both 1/300 and 1/150 rule.

Results Appear Here





*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.