The answer, a lifetime. Metal Roofs have been a popular choice for both residential and commercial roofing for well over 100 years. The oldest aluminum roof that is still functioning with the original roof is in Australia. It is on the Chief Secretary's building and was installed in 1880. Today the roof is 135 years old and remains in sound condition! Metal Roofs can be found on historic structures such as Thomas Jefferson's beloved Monticello home, Princeton University's Nassau Hall and the top of the Washington Monument.
There are many advantages to installing a metal roof on any home and is a popular choice for historic home and building re-roofs for its light weight superior protection.
If you have any metal roofing questions, you can ask it here or contact Houston Metal Roofing Services directly.