Products / DMC 450

The DMC 450 is a commercial and residential standing seam roof panel with a 1-1/2-inch snap-lock seam fastened with the DMC 450 clip, a concealed fastener system that allows thermal movement. Standard nominal widths are 12, 16 and 20 inches, in painted Galvalume or Drexlume (22 and 24 gauge) and painted aluminum (.032 and .040 inch). Minimum slope is 3:12 over plywood decking with approved underlayment. The data sheet lists UL 790 Class A, UL 2218 Class 4, UL 580 Class 90, UL 1897 and Florida Building Code approval, and states a 35-year non-prorated PVDF paint warranty on Galvalume and aluminum substrates and 25 years on the Drexlume substrate.