If there is no ventilation of trapped moisture in a roof, heat from the sun can cause gases to expand, which in turn can cause blistering and tearing of the roof membrane.

  • Optimum air circulation according to DIN 4108
  • No cracking of the roof surface
  • Penetrating moisture and condensation are removed
  • Insulation performance remains intact
  • Rain-proof design
  • Versatile in use and thus less time in storage
  • Ideal for connection to bitumen and plastic roof membranes
  • Quick installation
  • Weather, frost and UV-resistant
  • Fire rating B2 (no direct flame contact)
  • Temperature resistance -40°/+80°C
  • Flow temperature max. +40°C (for short periods max. +80°C)


  • High impact PVC, black

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