Hello, Getting ready to take the plunge and start on a coop. I have been lurking around looking at designs and completed coops. I can't remember seeing galvanized siding except for roofing. Is there a reason to not use it other than cost? Retiring the end of this year, and want to do it right the first time. I came in this world with chickens, and I'm going out with chickens. However there has been a huge gap in the middle years.