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Root Protection Layer

Catalog
 

Requirement

"A functional root barrier is essential if root penetration is to be prevented for long. From a technical viewpoint, root barrier protection should be extended to the entire roof area, and not restricted to just those sections of the roof that have been planted. In the case of grasses with strong rhizome growth such as bamboos and Chinese reeds, further, structural measures and special care will have to be taken." FLL
 

PVC-P Root Protection Layer

  

Cold-Welding
  • Protects against rootpenetration on unsealed roofs.
  • Provides a watertight layer for roof garden projects and a reservoir in one.
  • "Root penetration protection can be enhanced by an additional root protection layer above the roof
    seal" FLL.

   

  • Ensure the 5cm overlap is clean and dry.

  • Apply the welding agent with a brush.

  • Press the joint with a silicon roller immediately after applying the agent

  • Coverage: about 40 cm3 per meter length.

 

  
 

Technical Data

Hot-Welding
 
Dim.
FLW-800
Nominal thickness
[mm]
0,8
Material
 
PVC-P
in line ith DIN 16938
Colour
 
Brown
Weight per unit area
kg/m2
1,03
Tensile strength weft
N×mm-2
24,3
Tensile strength warp
N×mm-2
23,0
Distension capacity weft
%
365
Distension capacity warp
%
359
Tear resistance weft
%
95
Tear resistance warp
%
90
Corrugation in the cold
-
No tears
Steam diffusion value
 
8506
Root impermeability test
 
Passed, TÜV testing institute
Tests
 
DIN 16938
Production
 
ISO 9001, ISO 9014
Other properties
 
not bitumen-resistant
not UV-resistant
Roll width
[m]
1,3
Roll lenght
[m]
35
Roll area
[m2]
45,5
Roll weight
[kg]
47
Roll diameter
ca. [cm]
21,0
Palette unit
Roll/ Palette
22
 
  • Ensure the 2 cm overlap is clean and dry.
  • Allow the blowtorch to run hot.
  • Hold the welder so that the 2 cm wide nozzle heats the whole of the overlap area and especially the outer edge of the seal (the nozzle needs to run up to 3 cm beyond this edge).

  • Run a silicon roller along the seal area immediately after welding, using constant pressure.

 
 

Catalog