Intensive | roof with limited fall

The ideal system for installing an intensive green roof with vegetation such as grass, shrubs and trees. Suitable for roofs with limited fall.

Our intensive green roof systems are supplied as a complete system, from root-resistant foil to the growing-medium layer. In this composition the growing-medium layer consists only of substrate. The intensive substrate is tailored to the needs of intensive vegetation. The substrate height is determined by the type of vegetation, the desired water buffering and the maximum roof load (view the table below).

Technical data

Low
Middle
High
Recommended substrate height
approx. 250 mm
approx. 500 mm
approx. 1,000 mm
Total system height
approx. 279 mm
approx. 529 mm
approx. 1,029 mm
Total system weight, dry
approx. 253 kg/m²
approx. 503 kg/m²
approx. 1,003 kg/m²
Total system weight, saturated
approx. 332 kg/m²
approx. 657 kg/m²
approx. 1,307 kg/m²
Water buffering
approx. 80 l/m²
approx. 155 l/m²
approx. 305 l/m²
Run-off coefficients
Cs = 0.1 - 0.2
Cs = 0.1 - 0.2
Cs = 0.1 - 0.2
Type of vegetation
Intensive vegetation
Intensive vegetation
Intensive vegetation
Slope in degrees
0° - 5°
0° - 5°
0° - 5°

Example composition

Intensive vegetation (in combination with pavement)

ND 5+1 Drainage System; filter layer, drainage layer, protective layer and water buffer layer glued to one product.

Root-resistant waterproofing membrane

from approx. 279 mm
from approx. 252 kg/m²
from approx. 332 kg/m²
from approx. 80 l/m²
Cs = 0.1-0.2
0° - 5°

A strong core with extra high water buffering dimple

The core of this intensive green roof with a roof construction with limited fall is formed by the ND 5+1 Drainage System on a roll. This multifunctional CE-marked drainage system with high compressive strength protects vegetation against water build-up and at the same time stores water in the built-in water reservoir (5.8 l/m²) for dry periods. The extra high dimple (27.5 mm) of this drainage system ensures that even on roofs with limited fall, the waterproofing membrane is protected against the build-up of water pressure and mechanical loads.

This multifunctional CE-marked drainage system with high compressive strength protects vegetation against water build-up and at the same time stores water in the built-in water reservoir (5.8 l/m²) for dry periods. The high dimple of this drainage system ensures that on roofs with insufficient fall, the waterproofing membrane is protected against the build-up of water pressure and mechanical loads.

If the waterproofing membrane is not root-resistant, we recommend adding the ND WSB-80 Root Barrier.

View our projects

Would you like to learn more about the possibilities of our innovative Nophadrain solutions for your project? Check out our existing projects here.

Generic filters
Exact matches only
Filter by Product categorieën
Root barrier layer
Water buffering and water retention layer
Trafficable roofs
Vertical protection and drainage layer
Vegetation layer
Solar roofs
Growing medium layer
Roof edge / edge retaining profiles
Filter and drainage layer
Separation, protection and slip layer
Filter layer
Green roofs
Sedum cassettes
Erosion protection
Water retention
Inspection chambers
Generic filters
Exact matches only
Filter by Product categorieën
Root barrier layer
Water buffering and water retention layer
Trafficable roofs
Vertical protection and drainage layer
Vegetation layer
Solar roofs
Growing medium layer
Roof edge / edge retaining profiles
Filter and drainage layer
Separation, protection and slip layer
Filter layer
Green roofs
Sedum cassettes
Erosion protection
Water retention
Inspection chambers
Generic filters
Exact matches only
Filter by Product categorieën
Root barrier layer
Water buffering and water retention layer
Trafficable roofs
Vertical protection and drainage layer
Vegetation layer
Solar roofs
Growing medium layer
Roof edge / edge retaining profiles
Filter and drainage layer
Separation, protection and slip layer
Filter layer
Green roofs
Sedum cassettes
Erosion protection
Water retention
Inspection chambers
Generic filters
Exact matches only
Filter by Product categorieën
Root barrier layer
Water buffering and water retention layer
Trafficable roofs
Vertical protection and drainage layer
Vegetation layer
Solar roofs
Growing medium layer
Roof edge / edge retaining profiles
Filter and drainage layer
Separation, protection and slip layer
Filter layer
Green roofs
Sedum cassettes
Erosion protection
Water retention
Inspection chambers