Low Slope Metal Roofing

A lightweight roofing system also places fewer demands on a building s structural support system an important consideration in earthquake prone areas.

Low slope metal roofing.

Low slope metal roofs require less material which reduces the overall load on the building s structure. An ssr has side joints between the roof panels that are arranged in a vertical position above the roof line. 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. Corrugated aluminum panels most buildings with metal roofing system are using corrugated roofing type.

During this test the roof panel system is completely submerged under six inches of water for approximately six hours. The corrugated metal roof minimum slope is 5 degrees. Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.

It is the recommended slope as there is no guarantee if you opt for flatter pitch than this. Low slope metal roof systems are tested to astm e2140 standards a water penetration test evaluating the resistance of roof panels vertical seams. 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.