Bituminous geomembrane for waterproofing civil engineering structures

Composition of the waterproof geomembrane Coletanche

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The COLETANCHE® membrane is composed of five layers of different products which make it unique :

  • A highly resistant anti-root film able to withstand puncturing by vegetation or rough substrates
  • Glass fleece which ensures dimensional stability
  • A non-woven geotextile reinforced structure which is highly resistant to tearing, and puncturing
  •  A elastomeric bitumen binder ensures that the geotextile is waterproof and resistant to ageing
  • A coating of sand ensures that workers can move on the surface in all weather conditions in order to carry out maintenance work. It also provides a rough surface which allows coverage of the membrane by soil.