Green roofs are continuing to gain recognition as a sustainable building design feature throughout North America. These vegetated assemblies contribute to many credits under the Canada Green Building Council’s (CaGBC’s) Leadership in Energy and Environmental Design (LEED) program.
To ensure performance of these systems, the Single-ply Roofing Industry (SPRI) association has passed two design standards and a test procedure specific for vegetative roofs in the last couple of years.