Required Pitch For Aluminum Pan Roofing

Roof slope of 1 4 per foot minimum is required on all roof systems.

Required pitch for aluminum pan roofing.

In most occasions a pitch of three in twelve is preferred but this should also take into consideration the manufacturer s recommendations as well the unique condition of the corrugated metal roof. Anything above that will require you to put out higher cost because they are already considered as higher pitch. The minimum pitch is typically 3 12 meaning the roof should rise 3 inches for every 12 inches of horizontal foot. The pitch is measured in inches of vertical rise per foot of horizontal run and the 5v crimp profile shown above requires a minimum slope of three in twelve or 3 12 3 inches vertically per 12 inches horizontally.

The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run. The minimum pitch for roll roofing is 2 12 or 2 inches rise to 12 inches run. Secondary roof drains are to be positioned on the roof so that water will drains to the primary upslope and they should not be installed at the same elevation as the primary. Slope should be built into the structure on new buildings.

Profile in the context of metal roofing means the shape that the sheet of metal is bent into to form the panels.