Extensive Green Roof Systems are designed to cover large areas without significant variations in design and plant selection. They are the most cost effective solutions. Our extensive green roof system is available as either pregrown or planted in place. These interlocking green roof panels make for a greatly simplified installation process, as almost all the vital green roof layers have been pre-assembled into one component. Its lightweight construction and ease of installation make it a perfect choice for clients looking for maximum benefits without all the trouble of a conventional layered green roof installation. Perfect for sloped or flat roof applications.