A roofer told me I was laying shingles backwards and I argued with him for 20 minutes
Turns out I had the nail strip on the wrong side, letting water creep under every seam. Anyone else have a pro call them out on something obvious that saved a whole project?
Is water really gonna sneak under there that fast though? Seems like it'd take a while before you even notice anything wrong. Still, good catch by the guy I guess.