This is the 5th project contracted to AmeriShade and EDL Construction by the Air Force. This newest project includes the repair of the structure and replacement of the waterproof fabric canopy (PVC) membrane when a previous contractor's work failed. The structures are on the flight line at the Columbus base and protect the aircraft from harmful UV rays, the searing sun, and hail. The shade structures also protect the flight crews and ground crews form the rain and other weather events while doing pre and post flight procedures and routine maintenance.