EDGERTON, Wis. – Diaz Roofing LLC allowed four employees to reshingle a residential rooftop without required fall protection, the U.S. Department of Labor’s Occupational Safety and Health Administration has found. As a result, OSHA cited the roofing company for one willful and one serious safety violation with proposed penalties of $73,080. The company has been cited previously 11 times for lack of fall protection.