Products / Mighti-Rib

Mighti-Rib is an exposed-fastener metal panel for roof and wall applications. The product page lists a 26 gauge Galvalume AZ50 substrate, a 1:12 minimum roof slope, panel lengths from 6 to 45 feet, UL2218 Class 4 hail resistance, UL790 Class A fire resistance, a UL580 Class 1-90 wind uplift test rating (#169) and an FM Class 1-150 wind uplift listing. The specification sheet repeats the UL 790 and UL 2218 classes, names the WeatherXL SMP paint system and gives a Galvalume (AZ50) warranty table of film integrity lifetime, chalk and fade 30 years and perforation 20 years. Manufacturing is listed at Gridley IL, Lancaster PA, Marshfield WI, Salt Lake City UT and St. Joseph MN.