Specifying the correct material for your roofing and cladding installation is important to ensure its success. The following section provides the necessary information to help assist in the specification process. The Atmospheric Chart (left) and Roofing Zone Usage Charts (below-left) provide specification guidelines of both ColorCote and Calder Stewart profile options respectively. Additionally, complete descriptions of the material options available are listed below. For certain applications and settings, consultation with Calder Stewart Roofing's support team is recommended.