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Model SFK-8 |Solar Fan Kit | For RBV-8

Model SFK-8 |Solar Fan Kit | For RBV-8

SFK-8

Fan Replacement Kits  

Price: $76.00 USD

$76.00 USD
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As a trusted industry leader in solar ventilation, our Round Back Solar Fan Replacement Kit (Model SFK-8) offers a long-lasting solution for your fan needs. With a durable design, this kit provides easy installation and efficient cooling for your space. Keep your fan running like new with this reliable replacement kit.

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Calculate number of Model  SFK-8  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.