Maintenance requirements for a metal roof are minimal, but a metal-roof-contractor should still perform periodic checks. They will look for any debris buildup in the valleys or any fasteners that may have loosened over the years. Most metal-roof-contractor teams offer a service plan to keep your roof in peak condition with very little effort on your part. This "set it and forget it" n... https://kkroofspecialist.com.sg/metal-roof-contractor/