Low slope metal roofs require less material which reduces the overall load on the building s structure.
Low slope metal roofing.
Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems.
Corrugated aluminum panels most buildings with metal roofing system are using corrugated roofing type.
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 roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.
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.
Low slope metal roof systems are tested to astm e2140 standards a water penetration test evaluating the resistance of roof panels vertical seams.
A lightweight roofing system also places fewer demands on a building s structural support system an important consideration in earthquake prone areas.
During this test the roof panel system is completely submerged under six inches of water for approximately six hours.
It is the recommended slope as there is no guarantee if you opt for flatter pitch than this.