Site Conditions / Brownfields / Geo-Seal® 100
Geo Seal 100 layers

Geo-Seal® 100 is an industry leading and patented sub-slab vapor intrusion barrier system that eliminates vapor intrusion for brownfields or any environmentally-impaired site. With more than 50 million square feet installed, the Geo-Seal® 100 system has been in use for more than 20 years. Installed between the foundation slab of the building and permeable subgrade, Geo-Seal® 100 eliminates vapor intrusion pathways and stops contaminant vapors from migrating through the slab and into a building and the most chemically resistant barrier on the market according to independent 3rd party testing. Geo-Seal® 100 consists of three layers:

  • Geo-Seal® BASE
  • Geo-Seal® CORE (60 mil)
  • Geo-Seal® BOND


Geo-Seal® 100 is the most chemically resistant vapor intrusion barrier on the market according to 3rd party indpendant testing.

Chemical resistance due to multiple highly chemical-resistant HDPE sheets and a polymer-modified asphaltic membrane

Seamless, monolithic design due to spray-applied core layer to ensure complete sealing of building foundation without mechanical fastening.

Strong mechanical bond that directly adheres the system directly to the foundation slab.

Have questions?

EPRO can help select the right system for your project conditions.
Tell Us More Contact Us Image