Abstract: From approximately 12:00 p.m. till 5:00 p.m. on June 29, 2016, an emplooyee was exposed to high heat while working on a roof installing support framing for large industrial fans. Water was available on the roof but no shade. At approximately 4:30 p.m. the employee complained to coworkers of being dizzy. He was told to rest and the other workers completed the job. At approximately 5:00 p.m. his coworkers assisted the employee to the aerial lift & all returned to the ground. After signing out of work at 5:05 p.m., the employee was attempting to leave when he backed his vehicle into another vehicle. While reporting this to coworkers, he stated that he had gotten too hot and believed he had passed out. After further rest, the employee left the site at approximately 5:30 p.m. At approximately 12:30 a.m. on June 30, 2016, the employee became ill and an ambulance was called to his home. The employee was hospitalized and at approximately 4:50 a.m. he died. Cause of death was listed as coronary heart disease with several contributing health issues.