Sheet metal roofing has become very popular recently and people are using it to build their homes. These are available in different textures and decide which design to go with.
The sheets of metal are turned into flat panels and then later they are sometimes polished to form roof panels. There are so many companies like Metal Roof Montreal that provide better information about sheet metal roofing.
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Roofing materials, construction-sites should not be used, as they are not reliable, and even the fabricator gives no warranty as to how long it will work. Also, there is a good chance that the quality will be poor and there can be a lot of difference between the panels.