WACO, Texas (KWTX) - Roofing companies are adjusting work schedules and increasing safety measures as summer heat intensifies across Texas. Companies like Centex Roof Systems and ENG Roofing say weather always impacts the workday, and heat requires special attention to crew safety. “Without our crew, we don’t have anything right? We can sell roofs and get jobs all day long but without them, we can’t do anything,” said Jon Key, general manager of sales at ENG Roofing.