Standing Seam Metal Roof Minimum Slope

The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.

Standing seam metal roof minimum slope.

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. For example if your roof rose 8 inches for every 12 inches the roof pitch is 8 12. Standing seam roof systems must have a minimum roof slope of 1 4 12 2 slope. Mbma recommends a minimum slope of 1 2 in 12 2 4 degrees for through fastener metal roof systems and 1.

Once you reach 12 inches mark it and then measure how far the roof rises perpendicular to the ground. Mechanically seamed standing seam metal roofs commonly used on large warehouses and the like can be used on much lower roof pitches. That is a 14 degree angle. Mbma classi fies metal roof systems into two types through fastener metal roof systems and standing seam metal roof systems.

That means there is at least 3 of vertical rise to the roof slope for every 12 it goes back horizontally. Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12 4 slope. Standing seam manufactures allow applications of metal coverings on slopes of 12 or even more. You can often see such examples of use over metal decks.

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to. Minimum slope requirements depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered. 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. Corrugated metal roofing has the same minimum pitch.

Using a measuring device move inward on the flat roof plane parallel to the ground 12 inches.