[Land Yacht]

I have a detailer friend that is going to help me spruce up the outside. The sides of the coach paint is in good condition, very glossy. I ha d waxed some of it with zymbol cleaner wax and it looks great. However, from the ground the roof paint looks very oxidized. My detailer friend wanted to know what material the roof was made of and what type of painting was used. 2000 model. Is the roof aluminum with imron paint and lots of clear coat?
Thanks Mike