Monarflex RMB350

Monarflex RMB350 is a high quality loose-laid radon resisting membrane made from blends of virgin low density polyethylene (LDPE).

When used in a new building as part of the Necoflex RAMâ„¢ system, it provides an effective barrier to the passage of radon, air and moisture from the underlying soil.



Features & Benefits

  • Reinforced multi-layer membrane with high tensile and tear strength.
  • High radon gas resistance.
  • High performance moisture vapour barrier.
  • Enhances the overall air-tightness performance of a building.
  • Available in 4 metre wide roll (unfolded) which means quicker installation and fewer joints.
  • Fully compatible with the Necoflex RAM System.

Product Data and Performance

Monarflex RMB350 is manufactured from 3 layers of virgin low-density polyethylene (LDPE) with a 12 x 12mm multi-filament polyester (1100 dtex) reinforcing grid between, to give high strength and tear resistance.


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