Abstract: At 11:27 a.m. on January 13, 2021, Employee #1, employed by a roofing contractor, was cleaning debris from roof tops at a condominium complex. He was using a 30-pound gasoline-operated blower. He was cleaning the roof of the single-story community center, which featured a convex, unguarded skylight that measured 53 inches by 101 inches. The area around the skylight was narrow and limited. As the employee moved around the skylight to perform his cleaning task, he fell through it and onto the carpeted floor below, a fall height of 13 feet. The employee was transported to the hospital and admitted for treatment of a fractured left arm that required surgery. The investigation determined there had been no place for the employee to tie-off on the roof top area, and no site specific evaluation and safety measures had been taken to prevent a fall.