In my original plan, I was going to get a metal roof. After doing a lot of thinking and research, I scratched that idea because, well, metal scratches. Because the house can move, if it goes under a low-hanging tree, a metal roof will get scratched up. This can cause it to rust, which is bad.
Regular shingles are out also, because they tend to fly off during high winds (or, in this case, when driving on the freeway).
I was turned on to Ondura by another Tiny Houser, and couldn’t be happier. It is lightweight, strong and very easy to work with. You can cut it with a box-cutting knife, jig saw or table saw.