Tecta America's TectaGreen continuous green roof system is modular and can be pre-planted or installed and filled on-site in units. Known for environmental performance, flexibility in design, and overall plant health, these modular systems include plants that are tolerant of the rooftop environment, and growing media blended and engineered for sustainable green roofs. The system is made of recycled-utility, high-molecular-weight polyethylene. TECTA AMERICA CORP. • SKOKIE, IL