Products / GulfWave

GulfWave is a corrugated exposed-fastener metal panel with a 3/4 in. high rolling rib, used on residential and light commercial roofs and also as wainscoting and interior accents. It gives 29 in. net coverage in 26 and 24 gauge steel over 15/32 in. minimum plywood at a minimum slope of 3:12. The product page lists Florida Product Approval 16646.4 for 26 gauge non-HVHZ use over plywood. Gulf Coast's published UL statement says the fire classification under ASTM E108 and UL 790 is set by the complete roof assembly, including substrate and underlayment or barrier, and not by the panels alone.