Corten Corrugated Steel Roofing | Buy Manufacturer Direct …
7/8" deep Corten® corrugated panels do not come pre-rusted. They will arrive unrusted and will have a dull gray finish. You don't have to do anything to get the corrugated Corten panels to rust. Just expose the panels to the weather and they will rust naturally. Use stainless steel fasteners with a painted brown screw head.