There is lots on the market, and welcome to the site.
[ame]http://www.google.ca/search?hl=en&sugexp=les%3B&cp=8&gs_id=u&xhr=t&q=metal+roofing&bav=on.2,or.r_gc.r_pw.r_qf.&bpcl=38897761&biw=1016&bih=523&wrapid=tljp1354042771548014&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=nQ21UIbCA-nqiwKc8oDAAw[/ame]