There's a definitive pattern mirrored on both sides that radiates outward. The pattern becomes more apparent the closer you are to viewing it from the center. I highly, highly doubt the roof is incorrectly assembled from a design standpoint. The buckling is only apparent on the trim. Perhaps it's secured too frequently to allow for proper expansion as it heats and cools? Someone with knowledge of metal roofing probably knows better than me. Either way, I think it's both an easy fix (relatively speaking) and not indicative of actual structural problems regardless.