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Cobra® GEODECK geotextile felt

Prevents weeds from growing under the deck

géotextile pour terrasse
zoom matière du feutre geotextile
  • Prevents weed regrowth
  • Can be laid directly on the ground, soil, grass...
  • Permeable for water, air and nutriants, but blocks weed
  • Matt black colour
  • Easy to cut
  • Light weight and easy to install
2 m (width) x 10 mm (length)
20 m2
100 gsm
Black and opaque
Resistance to tearing
0,413 kN (ISO 112236 : 2006E)
Maximum stretch
Direction A: 132% / Other directions: 158%
(ISO 10319: 2015)
Width traction
Direction A: 13.6 kN/m - Other directions: 11.5 kN/m
(ISO 10319: 2015)
rouleau de feutre geotextile

Effective barrier for the control of weeds and roots

Cobra® GEODECK geotextile felt is used in gardening and outdoor landscaping to ensure no unwanted vegetation  can appear between the deck boards.

Used under the decking substructure, the Cobra® GEODECK fabric keeps your deck area clear of vegetation over the years. You do not need to use toxic  weed killers or chemicals. A safe solution for the environment. 

The qualities of Geodeck® geotextile membrane

1 - A permeable barrier

Cobra® GEODECK geotextile membrane acts as a protective barrier from the soil while allowing rainwater to pass through .  It allows the passage of water, oxygen and nutrients while blocking weeds. It is perfect for gardening and landscaping works.

2 – Improved load distribution

Local and distributed loads on the deck, taken up by the adjustable pedestals, are more evenly distributed on the ground thanks to the geotextile membrane.  This improves the overall stability of the structure.


Tips for installing Cobra® GEODECK felt

A 20cm overlap

Allow an overlap strip of about 20 cm between 2 geotextile fabrics (i.e. about 10% per roll).

In certain cases (dense root presence), you can double up the layers of geotextile membrane for reinforcement.  Metal staples can be used to fix the film to the ground.

Technical documents

  • Product sheet – GEODECK Geotextile Felt.pdf
  • COBRA-CATA2021-GB.pdf

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