Super Span X Panel One of the most popular Whirlwind panels. Cost-effective and long-lasting, can be used for roofing or walls, providing a traditional look to your building project. This panel uses an exposed fastener. General Description It is available in 26, 24, and 22 gauge. UL Construction No. 30, 79, 161,167 UL 580 Up-Lift… Continue reading Super Span X