The ideal system for installing a low-maintenance extensive green roof system with sedums, herbs and grasses. Suitable for both flat and medium pitched roofs.
One complete system
Our extensive green roof systems are supplied as complete packages – from the root barrier up to and including the vegetation. We grow our own vegetation at our sedum nursery, Sedumdirect, offering excellent quality. The ND 4+1h Drainage System is the ideal under layer for an extensive green roof. This multifunctional, CE-marked drainage system with high compressive strength protects the vegetation from water stagnation, while at the same time storing water for dry periods in the built-in water reservoir. In addition, the ND 4+1h Drainage System protects the waterproofing membrane from a build-up of hydrostatic pressure and mechanical loads, both during and after installation.
The Labyrinth in Vaals has had a spectacular new entry structure since spring 2013. The roof of the building is shaped like a gigantic butterfly, covered in Sedum, in the colours of the Peacock butterfly.
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