Profile: Petersen Aluminum Corp. fabricates a wide range of roofing accessories. Our brand includes Pac-Clad™. Our products include coping, gravel stops, gutters and downspouts. We offer wall systems, perimeter systems, column covers and soffit systems. Our snap-on panels are designed for use in roofing, mansard and fascia applications. Our integral panels are designed for roofing applications, mansards, canopies and fascia.