At 1742 hrs, company 41 was alerted for a commercial structure fire in Springettsbury Township. Rescue 41-1 was requested for the RIT bringing a crew of 6 to the incident. Rescue 41-1 arrived and assumed the 4th due Engine responsibilities and picked up Engine 21's line at the 2nd hydrant. Rescue 41-1 crew established RIT on side C while 89 and 21 units extinguished the fire which was on the roof of the building. No incidents were reported for the RIT company throughout the incident. Rescue 41-1's crew assisted with picking up the supply line and returned available.