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 to the vegetation. We grow our own vegetation at our sedum nursery, Sedumdirect, offering excellent quality.
The heart of the Nophadrain Extensive Green Roof System
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.