Is that a crack that leads directly out the roof?

The crack doesn't cut all the way through the roof, but you may be able to reach it from the flakes. I haven't been up on it personally yet to look. There certainly is potential up there though.

it'd be way fun to try and bust out that roof

Yeah, it would :) If you don't go this Sunday, you will want to wait until later in the season when the bugs leave though. They get pretty bad out there.