Firestone Building Products offers eleven profiles in the Delta series of concealed fastener panels. The Delta Series is a high-performance cladding system, offered in a range of materials and profiles. The Delta Series’ unique design allows for rapid installation and a unique visual safeguard to ensure the panels are correctly interconnected. There are 31 standard UNA-CLAD metal colors in addition to custom colors that may be desired. The aluminum panels can be anodized and a 20 oz. copper is also available for great aesthetic appeal.