Minimum Slope For Metal Roof With Snow

Metal roofing systems have a good track record of performance in harsh winter environments as long as they are properly designed.

Minimum slope for metal roof with snow.

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. 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.

In country with heavy snow and tough winter days the metal roof minimum slope is recommended to be 1 12. Standing seam manufactures allow applications of metal coverings on slopes of 12 or even more. 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. You can often see such examples of use over metal decks.

A minimum slope of 1 inch per foot is recommended in snow country. The minimum slope for lapped non soldered seam metal roofs without applied lap sealant shall be three units vertical in 12 units horizontal 25 percent slope. Minimum pitch for metal roof for the most part the minimum pitch for metal roof installations depends on what kind of material you are installing and the method in which the material is being fastened. The key factors are usually snow loading requirements adequate slope and the use of snow guards when needed.