Minimum Roof Slope For Metal Shingles

Asphalt shingles require a minimum roof pitch of 2 12 or greater.

Minimum roof slope for metal shingles.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. The minimum pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run. 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.

Asphalt shingles continue to be the most widely installed roof covering option in north america. The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 inches run. 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.

Minimum metal roof slope depends on the roof profile building design climate and site location. After that the miimum pitch for metal panels depending on the methods used to join the panels. Metal roof shingles require a minimum roof pitch of 3 12 or greater. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.

The minimum roof slope for metal roofs is dependent upon the roof profile. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater.

Low slope metal roofs require less material which reduces the overall load on the building s structure. Panels joined with an applied lap sealant can go as low as 12. Typically large footprint single story. Minimum pitch for metal roof.

Let us recap on the minimum roof pitch required for each type of roofing material. 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. With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels.