The Grandrib series is the benchmark in the industry, manufactured from the best structural steel available. With clean, traditional lines, the Grandrib series offers a visually appealing metal roofing and siding solution with superior durability, longevity, and resistance to environmental elements.

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Substrate Offering:
29 Gauge Steel G90 galvanized
Excellent wind uplift and snow load ratings. High performance WeatherXL(SMP) Paint System maintains extreme resistance to abrasion, chipping and marring with tremendous color and gloss retention.
Minimum Roof Slope: 2½:12
Panel Coverage: 36” coverage with ¾” rib height
Hail Resistance: UL2218, Class 4
Fire Resistance: UL790, Class A
Wind Uplift Test Rating: UL580, Class 90
Maximum Panel Length: Custom cut to lengths up to 40’
Warranty: 30 -Year Warranty Against Fade & Chalk for Walls & Roof | 25-Year Non-Perforation Warranty Against Acid Rain for Walls; 20-Year Warranty for Roofs