Dallas Zoo has 25mm X-Wall Clear Polycarbonate on the Elephant and Giraffe Building. This application is one of many where clear polycarbonate sheets are used for daylighting of buildings that offer shelter for zoo animals. The polycarb panels install quickly over horizontal girt framing. Customer provides the frame, Sundance Supply provides the Polycarbonate and Base & Cap Install System, for low cost clerestory installation.
See Warehouse Window Install Basics Using Low Cost Base & Cap