The return of nature in cities plays an important role for livable cities. With the right green roof system, almost any gray roof transforms into an extensive and even an intensive green roof.
Extensive green roofs are aesthetic, durable, lightweight and require little maintenance.
Intensive green roofs are comparable to ground-based greenery, such as gardens and park landscapes. The intensive vegetation needs more water and regular maintenance. Lawns, shrubs and trees are the most common intensive vegetation for green roofs. This vegetation is often combined with areas for pedestrian or cars.
The core of the Nophadrain systems for green roofs are the ND+1 Drainage Systems. They all have a built-in water buffer function and are suitable for both a warm and inverted roof.
Click on the blocks below for the specific systems for green roofs: extensive and intensive green roofs.
The core of the Nophadrain Green Roof Systems are the ND+1 Drainage System products. They all have a built-in water buffer function. Our ND 4+1h Drainage System is our all-round drainage system for green roofs. This multifunctional, CE marked drainage system is designed with a compressive strength of more than 600 kPa. It is equipped with a strong filter and protective geotextile, making it suitable for the highest drainage performance. It also prevents the pressure of water on the waterproofing membrane. If the roof has no or limited slope, use the ND 5+1 Drainage System with a certified drain length of up to 13 meters. We offer the right solution for every green roof. We offer the right solution for every green roof. We offer the right solution for every green roof.
To make even more water available for vegetation, Nophadrain recommends supplementing the substrate layer in extensive green roofs with our ND SM Substrate Panels. The substrate panels are available in two different heights and can buffer up to approx. 15 respectively 30 l/m² of water. The substrate panels allow root growth and are limited in compression. Due to these special properties, they can even replace substrate and thus reduce the total weight of the green roof system. Heat island stress in the city is thus counteracted.
We recommend the ND WSM-50 Water Reservoir Panels for intensive green roof systems. They tolerate the higher weight of intensive green roofs and buffer up to 40 l/m² of water. All water reservoir panels buffer water to their saturation point. This means that more water is immediately available for vegetation. This leads to increased evaporation, supporting the small water cycle and draining only excess water to the drainage layer below. Due to their specific structure, the ND WSM-50 Water Reservoir Panels also function as an additional filter layer.
This allows the use of substrates with higher organic content, enabling an even more biodiverse vegetation with increased transpiration and evaporation. Completely in line with our motto: “Catch it, Keep it, Re-use it”.
Curious about the possibilities of our innovative Nophadrain solutions for your project? Don’t wait any longer and make an appointment with one of our experts today!
