VLT, VLF, VLU, VLS
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DIADEM® Geotextiles
 
 
ADVANTAGES
  • Long lasting→resistant to acids and alkalis
  • High load capacity, high tensile strength→due to good elasticity it takes spot loads well
  • Excellent permeable capacity
  • Simple installation, few tools are needed, easy to cut and drill
geotextiliak
 geotextiliak retegrend
APPLICATION
  • The VL-type geotextile has several functions on green roofs, but filtration and mechanical protection makes up approx. 80 % of their application
  • VLF geotextile is a filter layer with very low clogging indicator, allowing the water to flow away freely from the growing medium, preventing particles wash out thus assuring the flow of redundant water into the drainage system
  • VLU products protect the roof insulation boards against damage during the installtion and future maintenance work serving as a protecting layer
  • The VLS materials are suitable to absorb larger quanties of water due to it‘s mixed fibers, thus we recommend their use especially when higher water storing capacity is required due to the climate or the projects‘ characteristics demand it
PRODUCT DESCRIPTION

The VL-product family is a geotextile made of synthetic material suitable for fabric
formation, made by needle-felting procedure and upon the mechanical features, it is excellent for separating, filering and water retaining tasks on green roofs.

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TECHNICAL DATA
 
VLT-100
VLF-150
VLF-200
Product number
320101
320201
320202
Surface weight [g/m2]
100
150
200
Thickness [mm]
-
-
1,9
Tensile strength in longitudinal and cross direction [kN/m]
5,0
8,5
16
Elongation in longitudinal direction [%]
70
75
95
Elongation in transverse direction [%]
85
80
46
CBR-test, penetration force [kN]
1
1,5
2
Dynamic penetration (cone tilt) [mm]
35
20
22
Characteristic opening size [mm]
0,12
0,10
0,10
Water retention capacity [l/m2]
-
-
-
Water permeability VIh50[mm/s]
100
90
115
Robustness class
GRK2
GRK2
GRK3
Weatherproof [must be buried]
within 14 days after installation
within 14 days after installation
within 14 days after installation
Heat treatment
yes
no
no
Material
PP
PP
PP
Roll width [m] 
2
2
2
Roll length [m]
100
100
100
Roll size [m2]
200
200
200
Tekercstömeg [kg] 
20
30
40
Roll weight ca. [cm]
ca. 30
ca. 45
ca. 60
Colour
black
black
black
 
 
VLU-300
VLU-500
VLS-300
Product number
320416
320302
320405
Surface weight [g/m2]
300
500
300
Thickness [mm]
1,8
2,5
3,0
Tensile strength in longitudinal direction [kN/m]
2,7
5,4
2,6
Tensile strength in cross direction [kN/m]
3,7
7,2
3,6
Elongation in longitudinal direction [%]
75-90
75-90
100-120
Elongation in transverse direction [%]
65-85
65-85
95-110
CBR-test, penetration force [kN]
1
2,3
1
Dynamic penetration (cone tilt) [mm]
.
-
-
Characteristic opening size [mm]
0,13
0,085
0,123
Water retention capacity [l/m2]
1,56
2,09
2,7
Water permeability VIh50[mm/s]
95
48
90
Robustness class
GRK 2
GRK 3
GRK 2
Weatherproof [must be buried]
within a day after installation
within a day after installation
within a day after installation
Heat treatment
yes
yes
no
Material 
min. 70% PES, max. 30% PP
min. 70% PES, max. 30% PP
min. 70% PES, max. 30% PP
Roll width [m] 
2
2
2
Roll length [m]
50
50
50
Roll size [m2
100
100
100
Roll weight [kg] 
30
50
30
Roll diameter ca. [cm]
ca. 40
ca. 45
ca. 45
Colour 
colourful
colourful
colourful
 
 
VLS-500
VLS-800
Product number
 
320402
320426
Surface weight [g/m2]
 
500
800
Thickness [mm]
 
4,0
6,2
Tensile strength in longitudinal direction [kN/m]
 
4,4
6,8
Tensile strength in cross direction [kN/m]
 
6,0
9,0
Elongation in longitudinal direction [%]
 
100-120
90-110
Elongation in transverse direction [%]
 
95-110
95-110
CBR-test, penetration force [kN]
 
3,3
4,5
Dynamic penetration (cone tilt) [mm]
 
-
-
Characteristic opening size [mm]
 
0,086
 
Water retention capacity [l/m2]
 
3,6
5,5
Water permeability VIh50[mm/s]
 
50
-
Robustness class
 
GRK 4
GRK 5
Weatherproof [must be buried]
 
within a day after installation
within a day after installation
Heat treatment
 
no
no
Material
 
min. 70% PES, max. 30% PP
min. 70% PES, max. 30% PP
Roll width [m] 
 
2
2
Roll length [m]
 
50
25
Roll size [m2
 
100
50
Roll weight [kg] 
 
50
40
Roll diameter ca. [cm]
 
ca. 55
ca. 50
Colour 
 
colourful
colourful

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