So if you plan to keep your building for more than 7-8 years and don’t want the hassle of water leaks and roof replacement again (and really who does?), it’s likely intelligent to fully explore replacing your metal roof with a new metal roof. Will you deal with leaks a little longer in the short term? Probably, but chances are you’ll only have the hassle for a few more weeks upfront and gain peace of mind for an extra 50 years on the backend when you go with a new metal roof instead of roof coatings. Not a bad trade-off in most owners' minds!