Minimum metal roof slope depends on the roof profile building design climate and site location.
Low slope metal roofing.
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.
Rain gutters guards downspouts.
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.
An ssr has side joints between the roof panels that are arranged in a vertical position above the roof line.
Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.
Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems.
Low slope metal roof systems are tested to astm e2140 standards a water penetration test evaluating the resistance of roof panels vertical seams.
During this test the roof panel system is completely submerged under six inches of water for approximately six hours.
A lightweight roofing system also places fewer demands on a building s structural support system an important consideration in earthquake prone areas.