X-Span® is a 36″ panel engineered with long spanning capabilities in mind. Its structural nature, economical gauges and lasting coating systems makes X-Span® an ideal roof application primarily for carports.
Oil Canning: All flat metal surfaces can display waviness commonly referred to as “oil canning”. “Oil canning” is an inherent characteristic of steel products, not a defect, and therefore is not a cause for panel rejection. Oil Canning Technical Bulletin (pdf)