Profile in the context of metal roofing means the shape that the sheet of metal is bent into to form the panels.
Minimum roof angle for metal roof.
The minimum pitch for metal roofing varies depending on the profile of the metal.
For low slope metal roofs under 12 that are nearly flat modified bitumen roofing thermoset and.
Metal roof slope is expressed by a ratio indicating the roof pitch which notes the vertical rise of the roof in inches for every 12 inches the roof runs horizontally in other words dividing the vertical rise and its horizontal span.
Lapped nonsoldered seam metal roofs with applied lap.
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.
That is a 14 degree angle.
To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope.
The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.
After that the miimum pitch for metal panels depending on the methods used to join the panels.
The minimum pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run.
The minimum roof slope for metal roof panels depend on 3 different scenarios.
Minimum pitch for metal roof.
The minimum roof slope for metal roofs is dependent upon the roof profile.
Mechanically seamed standing seam metal roofs commonly used on large warehouses and the like can be used on much lower roof pitches.
Some homes may benefit most from two types of metal roofing on different roof planes to accommodate different pitches on the roof.
Lapped nonsoldered seam metal roofs without applied lap sealant must have a minimum roof slope of 3 12 25 slope.
The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run.