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.
Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.
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 metal panel roofing may be a standing seam roof ssr through fastened roof tfr or insulated metal panel imp roof.
During this test the roof panel system is completely submerged under six inches of water for approximately six hours.
Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems.
Minimum metal roof slope depends on the roof profile building design climate and site location.
Rain gutters guards downspouts.
An ssr has side joints between the roof panels that are arranged in a vertical position above the roof line.