Corrugated Metal Roof Minimum Slope

The corrugated metal roof minimum slope is 5 degrees.

Corrugated metal roof minimum slope.

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. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. Minimum pitch for metal roof. 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.

Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope. Corrugated roofing is an amazing choice for conventional pitched roof despite having the severe limitation about the pitch. Corrugated roofing is a great material on traditional pitched roofs but it has severe limitations when the pitch gets below 5 degrees.

The minimum slope for lapped non soldered seam metal roofs with applied lap sealant shall be one half unit vertical in 12 units horizontal 4 percent slope. That is why all roofing manufacturers recommend the 5 degree pitch as the minimum slope and they will not provide any guarantees if it is installed flatter than this. With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels. Low slope metal roofs require less material which reduces the overall load on the building s structure.

The following table provides the minimum required. What is the code required minimum pitch slope for a metal roof. Run in degrees and as percentage the minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. 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. Roof slope equivalents as rise. Corrugated metal roofing has the same minimum pitch. It is the recommended slope as there is no guarantee if you opt for flatter pitch than this.