As sustainable requirements become more prevalent in most construction projects, coatings technologies have been forced to evolve or go extinct. Because of their widely adjustable attributes, polyurethane coatings can be formulated to provide the durability, renewable content, and VOC requirements now specified by many of the Green Building guidelines. Regarding durability, few coating solutions exist for protecting concrete in the built environment that have the long-term, proven performance of those based on polyurethane technology. In addition, as VOC and indoor air pollutant limits have shrunk, polyurethane coatings have continued to excel by meeting new regulations through increased durability and faster return-to-service times.