[dillonmckay]

Not OP, but that is quite a physically demanding job with alot of time in the sun.

[blotter_paper]

Bad on the back and knees, high risk of falling, strokes from heat for older roofers, and the careless ones start throwing hammers around. (I'm not a roofer, but used to be a jack of all trades that sometimes did roofing alongside actual roofers.)