Unplanned roof fall occurred outby Spad #1118 and one crosscut outby #1 seal. Fall was approximately 35 feet long X 19 feet wide X14 to 16 feet in height. Unplanned fall occurred in the number 7 entry. No injuries or entrapment involved. No escape way, ventilation, walkway, or equipment involved. The unplanned roof fall was on northeast mains.