Products / Grandrib 3
Grandrib 3
UL 2218 Class 4Grandrib 3 is an exposed-fastener metal roofing and siding panel in Fabral's Grandrib series, giving 36 inches of coverage with a 3/4 inch rib height. The residential and agricultural product listing prints a 29 gauge Galvalume AZ50 substrate with the Enduracote paint system, a 2 1/2:12 minimum roof slope and custom-cut lengths up to 40 feet, with manufacturing at Gridley IL, Jackson GA, Lancaster PA, Marshfield WI, Salt Lake City UT, Spokane WA and St. Joseph MN. The same listing prints Hail Resistance UL2218, Class 4, Fire Resistance UL790, Class A and a UL580, Class 90 wind uplift test rating. Sister profiles Grandrib 3 Plus (29 gauge G90 galvanized, WeatherXL SMP paint) and GRG (29 gauge Galvalume AZ35) are listed alongside it with their own finish warranties.
UL 2218 Class 4UL2218, Class 4UL790, Class AUL580, Class 90
Sources
- fabral.com verified 2026-09-25