Products / MasterRib

MasterRib is Union Corrugating's exposed-fastener roof and wall panel, which the product page calls its most popular and versatile, used on residential, commercial and post-frame buildings, with extra-wide ribs for strength and handling and an extra-large siphoning channel on the under-lap rib for leak resistance in extreme wind and rain. The page prints 36 inch coverage, a 3/4 inch rib height, a 3:12 minimum recommended roof pitch, solid deck or open framing, 29 and 26 gauge unpainted Galvalume Plus, 29 gauge galvanized with acrylic coating, and 29 and 26 gauge Signature 200 siliconized polyester paint in select colors, with painted panels carrying a 45-year limited finish warranty.