Radon Block™ is one of the most effective under slab gas barriers in the building industry today.


CCMC 14024-R Evaluated as a code alternative solution

Radon Block™ is the new leading high performance radon blocking barrier membrane. When properly installed, Radon Block resists gas and moisture migration into the building envelope, providing superior protection from toxic and harmful chemicals.

It is a highly resilient underslab/vertical wall barrier designed to restrict naturally occurring gases such as radon and/or methane from migrating through the ground and concrete slab. RadonBlock is more than 100 times less permeable than typical high-performance polyethylene vapor retarders against radon, methane and other harmful volatile organic compounds (VOCs). It has been evaluated by the National Research Council Canadian Construction Materials Centre (NRC CCMC). Visit case studies.

Key features:

  • exceeds ASTM E-1745 Class A, B and C requirements

  • available in 20 mil (Class A) thicknesses designed to meet the most stringent requirements

  • produced within strict guidelines of an ISO 9001:2008 Certified Management System

  • evaluated as a code alternative solution CCMC 14024-R

  • available in 10’ x 150’ rolls to maximize coverage

  • rolls weigh 160 lbs and are folded on heavy-duty cores for ease in handling and installation

  • installation instructions and ASTM E-1745 classifications accompany each roll