NexGreen Duo 10/400

Name: NexGreen Duo 10/400
Brand: NEXLER
SKU: T-NG0005-NX-0001

Protective and drainage membrane integrated with a geotextile

Application:

Drainage, discharge of excess water and protection of horizontal or vertical waterproofing
Ventilation and protection of horizontal and vertical thermal insulation
Green roofs: terraces, car parks, foothpaths, motor traffic routes
For hardened utility surfaces designed for vehicular traffic: access roads, car parks and garages, civil engineering structures
Protection of elements in construction works

Properties:

Effective filtration - the geotextile retains solid particles and prevents siltation of the drainage layer
Prevents frost heaving
High compression strength
Increased mechanical strength and resistance to damage and punctures achieved by calendering the geotextile
Flexible, allows easy adaptation to the shape of the roof
Resistant to weather conditions
Resistant to plant root overgrowth and decomposition
Dampens vibrations and oscillations
Allows the discharge of harmful gases such as radon

Available packaging:

30 m²

PROPERTIES OF DIMPLED MEMBRANE
Composition	high-density polyethylene (HDPE)
Colour	black
Flat edge	one-sided
Membrane thickness	approx. 0,8 mm
Dimple height	10,0 mm
Profile height	11,1 mm
Number of dimples	approx. 3600 pcs./m²
Air volume between the profiles	7,9 l/m²
Membrane-to-surface contact area	approx. 7174 cm²/m²
PROPERTIES OF GEOTEXTILE
Composition	polypropylene (PP) fibres
Colour	white
Thickness	approx. 1,1 mm
Mass per unit area	approx. 110 g/m²
Tensile strength	approx. 5,3 kN/m
Elongation under tension: - longitudinal direction - transverse direction	> 40 % > 74 %
Static puncture resistance (CBR)	approx. 710 kN
Dynamic puncture resistance	31 mm, +6 mm
Characteristic pore size	170 μm , ± 51 μm
Water permeability perpendicular to the product surface	145 l/(m² ·s), -43 l/(m² ·s)
PROPERTIES OF GEOCOMPOSITE
Mass per unit area	approx. 910 g/m²
Thickness at a pressure of 2 kPa	approx. 9,8 mm
Compressive strength	400 kN/m²
Tensile strength: - longitudinal direction - transversal direction	13,7 kN/m, -3,8 kN/m 14,9 kN/m, -3,4 kN/m
Elongation at maximum load: - longitudinal direction - transverse direction	87%, ± 35% 53%, ± 33%
Temperature resistance	from -40°C to +80°C
Maximum installation depth	10 m
HYDRAULIC PROPERTIES OF GEOCOMPOSITE
In-plane drainage capacity	i = 0,02, 20 kPa: 0,35 l/(m·s)
OTHER DATA
Roll width	2,4 m
Roll length	12,5 m
Roll weight	approx. 27,3 kg
Application temperature	from +5°C to +30°C
Reference document(s)	EN 13252:2016

Works should not be carried out during precipitation.
Green roofs: Lay the NexGreen Duo 10/400 membrane on top of the NexGreen Geo 110 or NexGreen Geo Safe 350 geotextile laid on top of thermal insulation or directly on top of waterproofing made of heat-weldable bituminous felt. During installation, it is important to ensure that the transverse overlaps are not positioned in a single line and that the dimples, together with the geotextile, face upwards. Cut the membrane in appropriate places, fitting precisely to the obstacle encountered (e.g. equipment on the roof, drainage inlets). Before spreading the vegetation substrate or aggregate, it is recommended to weigh down the ends of the membrane so that successive strips do not shift.
Lay NexGreen Duo 10/400 with particular care, avoid damaging the waterproofing and geotextile layer.
The installation of the membrane should be carried out in accordance with the technical design drawn up for the specific building, in accordance with the applicable standards and regulations. The roof system should be designed with an appropriate pitch (minimum 2%) to prevent water piling up which would adversely affect plant cultivation.
Protection of vertical waterproofing and drainage: Unroll NexGreen Duo 10/400 membrane along the vertical edge of the structural element. The membrane should be laid with dimples facing outwards to avoid damage to the waterproofing layer and to ensure adequate water drainage.
Ventilation and protection of thermal insulation: Unroll NexGreen Duo 10/400 membrane along the vertical edge of the structural element. The membrane should be installed with dimples facing the thermal insulation, thus ensuring proper ventilation of the layers.
Lay adjacent sections of the membrane in a way that the border with the flat edge overlaps the border of the membrane without the flat edge. When two borders with no flat edge need to be joined, join them by overlapping dimples and pressing them in, the minimum width of the overlap should be three rows of dimples. In order to uncover a row of dimples, unstick and fold up a section of the geotextile.
During vertical installation use suitable anchoring elements for fixing, i.e. starter strips, dowels, pins. The anchoring elements must be selected according to the layering in such a way that the continuity of the waterproofing layer is not compromised (penetration) during their fixing.
Before use, please read the application details in the product's Technical Data Sheet.

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Green roofs in modern construction are not a passing trend, but a real market need driven by climate, urbanisation and regulatory challenges. They are a key element of sustainable development strategies, not only distinguishing investments on the market, but also having a real impact on their value and functionality. It is a space where ecology meets long-term safety and technical durability.