Permalon


A cross-laminated, high-density polyethylene geomembrane. Permalon's patented construction yields the best weight to strength ratio available and also provides exceptional tear and puncture resistance. No material offers a better balance of properties or more proven performance and reliable durability for the creation of waterproof tanks in greenroofs, on podiumdecks, in SUDS applications or underneath trees and green space in the urban environment.


Designed to be lightweight and easily handled, Permalon offers the possibility to be factory made to size, to minimize in field welding of liners. Individual panels of an acre in size are readily done. When properly installed, this material should last indefinately. Permalon is resistant to root penetration and microbes.

“The units are designed with tomorrow’s  world in mind. Made from 100% recycled  materials now, and again 100% recyclable  in  the future.”

Ron van Raam, CEO Permavoid 

Features & Applications

Key features:

  • Alloyed polyethylene. Resists punctures and tears
  • Lightweight
  • Exceptional tear and puncture resistance
  • Best weight to strength ratio
  • UV Stabilized
  • Cold crack tested to -60°F (-50oC)
  • Custom engineered fabrication and sizes up to an acre available to minimize in-field seaming.
  • Factory made to size

Common applications

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