Having spent a lot of money, you must understand that such a roof will last hundreds of years. So the roofing system must correspond to, it is not necessary to save on roofing materials, otherwise they will come into worthlessness much earlier than copper roof. You can also use rolls of roofing roofing materials, which are also quite reliable. Over the years, the copper roof will change its color, but will not change its qualities, reliability and durability. You can, using new technologies, change the color of copper, but it will cost expensive. This material copper patina will well protect the roof from atmospheric influences, it is almost perfect. The copper roof does not need to be repaired, it does not require special care. You can repair such a roof only if the beams come out of the system, or when you decide to change the roof structure.