Abstract: At approximately 8:45 a.m. on August 13, 2012, Employee #1, with Sonoran Roofing, Inc., began installing roofing materials by laying down felt paper onto the roof and installing sheets of valley metal and roofing vents. Employee #1 used a ladder to access the roof of the residence. He walked along the peak of the roof and began to install the anchorage point for his fall protection onto the roof peak. As he was securing the anchorage point, roofing materials that had been staged on the roof just below the roof peak became dislodged. Employee #1 lost his footing and slid down and off the roof along with the roofing materials. Employee #1 was transported to the hospital, where he underwent surgery to repair a severe laceration to his left leg. This surgical repair ultimately was unsuccessful, resulting in amputation of the leg above the knee. Employee #1 also sustained a fracture of the right leg femur and a fracture to the right side of his face. Employee #1 was in the hospital for 14 days and then transferred to a facility for further rehabilitation.