Modern, corrugated metal roofing panels are primarily made out of galvanized steel (G-60 low-end, or G-90 better quality) in the form of U, V, R 5 V crimp and rib-shaped panels. Typically, they are employed as metal roof or wall system comprised of 32 to 36 inches wide corrugated panels held in place by exposed screws / fasteners color-matched to the paint color of the metal panels. Caulking is used at connecting points of overlap in between the panels for water tightness.
Corrugated metal panels can also be made from galvanized, galvalume, stainless steel, and aluminum. Normally, a corrugated metal panel does not have a lot of thickness in terms of metal grade, which makes it quite economical and hence affordable, but it may well require some maintenance every once in a while, including the exposed fasteners re-tightening and potential re-coating applications.
While metal shingles are available today and can be produced to mimic any material, standing seam and corrugation remain the two most common types of metal roofs. Let’s have a look at them side by side as you consider your upcoming remodeling project.