A big blob of uncooked bread dough

Went out to investigate what fell off the garbage truck at our office parking lot. Looked like a blob of foam... yellowish, like that spray insulation in a can. When I say blob, I mean like the size of a man's torso, larger.

Turns out it was... dough. A big blob of uncooked breads dough. Thinking of maybe using it to do some roof repairs. Any other suggestions?