Roofing systems are as critical to building enclosure performance as cladding and glazing systems. A non-partisan evaluation based on engineering principles provides for the development of appropriate, cost-effective options. There are also numerous roofing systems available on the market, each with corresponding advantages and disadvantages. We can assist in developing the appropriate material options for the exposure conditions and level of performance desired. Equally as important, the field presence of the design professional during roofing system installation is key to confirmation that the system is supplied and installed as intended. Crosier Kilgour personnel have the extensive experience in the design and inspection of roofing systems on new and existing buildings.