Triton TWS–EX100GM

TWS-EX100GM is a highly efficient waterproofing membrane which also acts as a barrier to Radon, Methane, Carbon Dioxide and other ground gases and contaminants. The self adhesive membrane uses aluminium as the primary barrier, which is reinforced and protected by a laminated film of biaxually oriented HDPE film to one side and a robust bitumen rubber to the other. A selvedge of bitumen rubber facilitates easier lap seals.

Triton TWS-EX100GM in pack
Triton TWS-EX100GM unrolled

Triton supplies a range of ancillary products for the installation of this membrane. Please refer to the ancillaries section below. Detailed application guidelines are downloadable – see below.

TWS-EX100GM is available in 19.05M x 1.05m rolls.


  • Highly efficient waterproof membrane
  • Effective barrier to Radon and other ground gases
  • Fully bonded system
  • Highly puncture resistant
  • Cold applied