You're standing in the front yard looking up at the roof. Maybe there are a few curling shingles, maybe a leak showed up after the last storm, maybe a contractor knocked on your door and told you the whole thing needs to come off.

You walk out into the yard after a Memphis thunderstorm and there it is, a shingle lying flat in the grass. You look up at the roof and see a bare patch where it used to be. Maybe it's just one shingle. Maybe two or three.