Minimum Roof Pitch For Standing Seam

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.

Minimum roof pitch for standing seam.

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. The profile refers to the shape the metal sheets take when they bend to. Standing seam manufactures allow applications of metal coverings on slopes of 12 or even more. Depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered.

However there are many mechanically seamed standing seams that are very appropriate for lower pitch roofs usually down to about 1 4 12 most flat seam products will have soldered seams to make them watertight even on a flat roof. Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12. Thanks for your questions. Speaking about standing seam metal roof slope it is a general and a self evident knowledge that the steeper it is the faster it is for snow rain or drain to come down the roof.

Snap lock standing seams should not be used on roofs under 1 5 or 2 12. The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope. In country with heavy snow and tough winter days the metal roof minimum slope is recommended to be 1 12. You can often see such examples of use over metal decks.