This is west of Tucson, half way to Ajo.
This was installed by fully legal, fully licensed contractors.
Homes built up until the mid 1980's would still commonly use asphalt shingles.
The photos I've been posting here for years are from a total (now) of 59 different contractors.
The problem is not just "1 or 2 guys with low quality" it's... a LOT of them.
One sheet of 3/4 plywood cut in half and trimmed out, maybe a couple of 2x4's or 2x6's then a sheetmetal cap... maybe fifty bucks ... Find the guys who did that job, bring them back up there then push them off the roof ...
"Nothing else can poison our culture, corrupt our society or ruin the character of our people like unearned money or unearned opportunity." -- James R. Cook
"Fooling around with alternating current is just a waste of time. Nobody will use it, ever." Thomas Edison, 1889.