Products / MS Authentic

MS Authentic is a concealed-fastener architectural steel roof panel listed by MBCI under architectural roof, with triangular pinch strips and a flat pan styled after antique horizontal-seam roofs; transverse joints are available every 8 feet. The product page gives a 19-1/4-inch coverage width, a 1-1/16-inch panel depth, lengths from 3 to 60 feet, 24 or 26-gauge steel, and MAC Metal Signature and Inspiration color collections, with minimum slope stated to vary by color. The MAC data sheet for the MS 1, MS 2 and MS Authentic profiles lists galvanized G90 steel per ASTM A653, 26 and 24-gauge for roofing, ASTM D5206 and ASTM E330 wind-pressure tests, ASTM E2768 and CAN/ULC-S135 non-combustibility tests, and an ASTM E84 Class A result; it states a 40-year MAC guarantee.