Hanging Water Tank was also applied in the location of Mutsaers foundation, Plinthos in Sweikhuizen. At this location a choise was made for a green roof system with “Sedum Boxes”. This is an uncomplicated system in which all parts of foil, substrate and plant mix are incorporated in a basket and fixed on the roof in a windproof way. The boxes are hooked together and can quickly be mounted on the roof. The system is easily replaceable and interchangeable and has plenty of good combination options with, for example, solar panels. Soon the construction of the green façade will start, which will further complete the system.