Union Corrugating Master Rib 3.17-ft x 12-ft Ribbed Charcoal Gray 29-Gauge Steel Roof Panel

MasterRib is Union Corrugating’s most popular metal roofing panel and is an industry leader in strength and durability. This versatile metal roofing panel features classic looks and is used in a wide range of roofing and sidewall applications, including residential, commercial, post-frame and agricultural. MasterRib is designed with extra wide ribs to increase strength and ease handling and installation. Another unique feature of the MasterRib panel is the extra large siphoning channel under the under-lap rib which provides extra leak resistance in extreme wind and rain conditions. MasterRib panels have our premium Siliconized Modified Polyester (SMP) paint system that provides superior color stability, chalk resistance, fade resistance, gloss retention, stain resistance and scratch resistance 45 year paint warranty. The Galvalume coating on the panels provides rust resistance with a 25 year substrate rust warranty. Union's paint colors have energy star ratings and can reflect up to 70% of the sun's energy that can reduce attic temperatures and cooling costs.