If your metal roof is new and unpainted, experts recommend waiting at least 6 months before applying paint on it. Before painting, the roof should be cleaned with a power washer to get rid of existing dirt, mold or oils that may affect the coat of paint.
We've recently had an issue with our windows leaking resulting in the inside trim getting warped. We were told by the company who installed the windows that it could be a possible leak from the roof although I was not...