New guy here, jumping right in trying to be helpful.
I work for a trucking company and we have our own shop. Once in a while, we put a new roof on a 53 foot semi-trailer. That roof is a single sheet of aluminum, about .050 thick. It is 102 inches wide and more than 53 feet long. Comes rolled up so it is not too difficult to handle. No, I don't dare guess what it costs, but I'm sure the Utility dealer can tell you.
I'm learning a ton from this forum; sure glad I found you guys!