Low Slope Metal Roofing

Typically low slope metal roof systems vary in weight from 40 to 135 pounds per 100 square feet making them among the lightest roofing products and the easiest to install.

Low slope metal roofing.

During this test the roof panel system is completely submerged under six inches of water for approximately six hours. Low slope metal roofs require less material which reduces the overall load on the building s structure. The corrugated metal roof minimum slope is 5 degrees. An ssr has side joints between the roof panels that are arranged in a vertical position above the roof line.

Low slope metal panel roofing may be a standing seam roof ssr through fastened roof tfr or insulated metal panel imp roof. Low slope metal roof systems are tested to astm e2140 standards a water penetration test evaluating the resistance of roof panels vertical seams. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. 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.

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. It is the recommended slope as there is no guarantee if you opt for flatter pitch than this. A lightweight roofing system also places fewer demands on a building s structural support system an important consideration in earthquake prone areas.