That must have been an old complex built long before strict fire codes for the entire place to go up like that. It must have been a common attic.
They don't have to be old, for the entire place to go up, we have see plenty of new 30 units and more, both condo, and town house, go to the ground, and there was water to fight them, and they had fire walls, when these buildings get going they they are like a fire storm.
