The first choice of architects for commercial building on low-slope applications, high wind applications. This a concealed fasteners system which uses a clip fasten down between the interlock of each side seam, it can be installed over a solid substrate, open framing, or rigid insulation. After placement of the panels the installer will need to run a seaming machine over each side lap, locking the panels together. A bead of factory sealant may be used at panel end laps for additional weather resistance. Maximum panel length is variable as All Steel has the capability to form continuous panels on site for long roof sections.