GeoVentTM Passive Venting System

GeoVentTM is a low-profile, trenchless gas collection and venting system designed to improve venting efficiency and reduce installation costs. GeoVent can be used as a  “Passive” venting system depending on the specific project. GeoVent™ can be used with Liquid Boot and CoreFlex barrier systems. GeoVent allows for:

  • Placement in closer proximity to the gas vapor barrier allowing for more effective venting
  • Greater opening area per lineal foot of pipe and integral filter fabric allowing for higher ventilation efficiency
  • Installation at a higher elevation reducing susceptibility to inundation from perched groundwater that may accumulate beneath the building foundation
  • Flow characteristics exceed that of a typical trenched installation. The overall capacity of the system is far in excess of typical gas flux rates.

Venting in Conjunction with a Gas Vapor Barrier System per the ITRC

Venting involves the placement of a venting layer below the building footprint to allow soil gas vapors to move laterally beyond the perimeter, alleviating the accumulation of volitile or explosive gases from beneath the structure. The Interstate Technology Regulatory Council (ITRC) states in their Vapor Intrusion Guidance Document that "in most situations, at least passive venting should be combined with passive barriers."

Other CETCO Systems for Gas Vapor Mitigation

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