Standing Seam Roofing Minimum Slope

The associa tion also stresses deflection of purlins and rafters under dead and live loads be checked to ensure positive drainage.

Standing seam roofing minimum slope.

Ibc callouts for min 2 or 1 4 per foot. I am looking at the ibc minimum roof slope requirement for standing seam metal roof. And profiles like standing seam which utilize a concealed connection to the roof deck require only a one and a half inch minimum pitch. Standing seam manufactures allow applications of metal coverings on slopes of 12 or even more.

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Roof systems must meet a governing. Mbma recommends a minimum slope of 1 2 in 12 2 4 degrees for through fastener metal roof systems and 1 4 in 12 1 2 de grees for standing seam metal roof systems. 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.

The profile refers to the shape the metal sheets take when they bend to form panels. Standing seam roof systems must have a minimum roof slope of 1 4 12 2 slope. Standing seam is the metal roof profile that has been gaining more popularity nowadays due to its clean and modern looks. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.

The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope. You can often see such examples of use over metal decks. 2 exactly does not translate to 1 4 per foot. I understand this is more of rounding off to get to a nice number.

There are some opinions that standing seam metal roof minimum slope is 12 but it increases the possibility of leaking on the few first days of snow arrival. The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope. Manufacturers specify a minimum pitch for each of the profiles they offer and sometimes they can be installed at a lower pitch if special underlayment or installation procedures are followed.