The “Sedum Carpet” is a standard build-up for extensive Green Roofs. It is a shallow and lightweight green roof type with an attractive “back-to-nature” appearance, that requires little maintenance. Floradrain® FD 25-E is the appropriate drainage and water storage element for this system. It has the necessary compressive strength, a low profile height, little weight and is walkable. Proven Sedum species, in combination with the adapted substrate and System Build-up, guarantee a durable Green Roof. The system substrate “Sedum Carpet” is particularly suitable for extensive Green Roofs as well as the plant community “Sedum Carpet”, containing various low-growing Sedum species that are wind and frost-resistant. During the year, “Sedum Carpet” is represented in various shades of green.