Although roofing is fairly simple, people these days don't have any experience with doing anything real.

I walk up to a house, and I can instantly see what was done where, how good they were, and how many repair jobs have happened.
But, that's me. I really don't know what other people see.

For these people, the inspector and the licensing process is supposed to protect them. But, it doesn't always seem to work.

Out in Colorado I thought I would see more metal roofing jobs, but I asphalt shingles as far as the eye can see.