Minimum Roof Slope For Metal Shingles

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

Minimum roof slope for metal shingles.

Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. Asphalt shingles require a minimum roof pitch of 2 12 or greater. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels.

For low slope metal roofs under 12 that are nearly flat modified bitumen roofing thermoset and. Asphalt shingles continue to be the most widely installed roof covering option in north america. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Let us recap on the minimum roof pitch required for each type of roofing material.

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 pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

According to the 2012 international building code 1507 4 2 deck slope minimum slopes for roof panels need to comply with the following. In country with heavy snow and tough winter days the metal roof minimum slope is recommended to be 1 12. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope. The minimum pitch for a standing seam metal roof is 1 4 or 3 inches rise to 12 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. After that the miimum pitch for metal panels depending on the methods used to join the panels. Low slope metal roofs require less material which reduces the overall load on the building s structure. The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.

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. The minimum roof slope for metal roofs is dependent upon the roof profile. Typically large footprint single story.