Just choose the shape of the louvered vent the net free air needs calculated.
Then enter the vent height, width and depth.
The calculator will do the rest.
No more long calculations to remember per shape.
Then enter the vent height, width and depth.
The calculator will do the rest.
No more long calculations to remember per shape.
These air flow calculators are designed to calculate the net free air of Onyx Xteriors gable and attic vents.
Modifications and customiations to the vent ordered may slightly alter the actual net free air flow of the actual vent.
These are to get the vent in the general sizing for the desired free air flow.
If for any reason, there is a net free air question not covered,
call us 901.281.2887