Sedum roof Do you want to buy a sedum roof? Then take a look at NatureGreen's green roof systems! Their mission is to transform the gray roofs of the Netherlands into beautiful green roofs. They do this by offering their customers a low-cost sedum roof and by guiding them in the process of selecting, purchasing and installing. Consultants are happy to assist you! Looking for a sedum roof? Below I explain to you what a sedum roof is. What does sedum consist of? The sedum cassettes consist of different layers, of which sedum plants grow on the top layer. Sedums are small succulent ...