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Thermabar 346

A Fire Retardant Double sided Foil Insulation, consisting of two layers of highly burnished aluminium foil, bonded with a fire retardant adhesive to a woven polymeric mesh. Due to its highly reflective surfaces, and used in conjunction with a still air space, provides thermal insulation and a vapour control layer.

Key Features

  • Fire retardant
  • Water Barrier / Vapour barrier
  • Strong & durable


  • Can be used as a Vapour Control Layer and improve thermal performance if installed and taped on the warm side of bulk insulation.
  • Is tear resistant and when used in conjuction with a still air cavity, provides thermal insulation.
  • Is reflective, light weight and has high tensile strength.