Low Slope Metal Roofing

It is the recommended slope as there is no guarantee if you opt for flatter pitch than this.

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. Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems. During this test the roof panel system is completely submerged under six inches of water for approximately six hours. Low slope metal roof systems are tested to astm e2140 standards a water penetration test evaluating the resistance of roof panels vertical seams.

Minimum metal roof slope depends on the roof profile building design climate and site location. Low slope metal roofs require less material which reduces the overall load on the building s structure. 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. A lightweight roofing system also places fewer demands on a building s structural support system an important consideration in earthquake prone areas.

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. The corrugated metal roof minimum slope is 5 degrees.