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When properly installed and maintained, a metal roof can last 50 to 80 years. However, the fasteners used to attach the roof may have a shorter lifespan than the roof panels, so it’s a good idea to inspect your roof every few years to check for wear and replace any damaged components. Metal roofs installed over shingles don’t last as long as tear-offs since the underlying roofing components can deteriorate over time, and the added weight can stress roof supports.

Metal roofs have a bad reputation for being loud, even if that's not necessarily true—it's usually only thin tin or sheet metal roofs that are loud during storms. Stone coating adds a layer to the metal that severely cuts down on any noise from rain. In many ways, stone-coated steel roofs are quieter than your average, run-of-the-mill asphalt shingle roof.

Generally, magnets do stick to a metal roof, though certain metals may not be magnetic. In that case, you can use self-adhesive hooks designed for outdoor use or plastic clips that hook onto your gutter or the edge of your roof. But if your metal roof is made of steel, aluminum, or copper, you're in luck—those are all magnetic metals.

There are advantages and disadvantages to metal roofs in cold climates. Metal roofing stands up extremely well to harsh winters as long as it is properly insulated. Snow and ice slide right off residential metal roofs, preventing the formation of ice dams; but because of this, they may require snow guards, which prevent the ice and snow that slide off a roof from causing a sort of "mini avalanche" that can damage property and people below.