Metal Roofing For Low Slope Roofs

Low slope metal roofs have been a preferred roof covering for commercial institutional and industrial buildings for years because of their ability to protect against the elements to allow water to drain away from the roof surface and to keep building contents and occupants dry and comfortable.

Metal roofing for low slope roofs.

At sheffield metals we also recognize low slope as 3 12 and below. But the taller profiles like standing seam and pbr shown below can be installed on roofs with as low as 1 4 or 1 2 in 12 pitch. Structural metal panel roof systems can be used for low slope roofs because of their hydrostatic or water barrier characteristics. Because of the shallow height of the undulating ridges of the 5v and corrugated profiles and the use of exposed metal fasteners to screw the metal to the roof deck they are limited to a slope that will shed rain quickly.

Most structural metal panel roof systems are designed to resist the passage of water at laps and other joints as sealant or anti capillary designs can be used in the seams. It is the recommended slope as there is no guarantee if you opt for flatter pitch than this. Determining which panel is the right choice for the slope on your project will depend on the manufacturer s minimum slope factor for that specific panel profile. Low slope metal roofs require less material which reduces the overall load on the building s structure.

Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems. The corrugated metal roof minimum slope is 5 degrees. It is important to note structural metal panel roof systems can be used for steep slope roof assemblies too. Minimum pitch for corrugated metal roof corrugated roofing is an amazing choice for conventional pitched roof despite having the severe limitation about the pitch.