Proven with over 100 million square feet of successful installations, LIQUID BOOT® is the premier vapor intrusion barrier system utilized in hospitals, schools, high-rise commercial and residential buildings, multi-family housing developments, and major public works projects worldwide.
LIQUID BOOT® vapor barrier safeguards indoor air quality from vapor intrusion by soil gases and groundwater contaminants.
LIQUID BOOT® vapor barrier forms a barrier at a structure’s foundation that prevents vapor intrusion by subsurface chemicals in the ground below, including:
LIQUID BOOT® reduces vapor intrusion from these chemicals, protecting against the potentially serious health risks they pose.
LIQUID BOOT® is a seamless, spray-applied rubberized asphalt formed from a waterborne emulsion and catalyst that are sprayed simultaneously from a dual-nozzle wand and combined with a geomembrane to create an effective protective barrier against vapor
intrusion into a structure.
combines the advantages of LIQUID BOOT® with VI-20™, a seven-layer co-extruded EVOH geomembrane made using high-quality virgin-grade polyethylene and barrier resins for impact strength and VOC vapor transmission resistance. EVOH is a copolymer of polyethylene, polyvinyl alcohol, and ethylene vinyl alcohol that demonstrates OC diffusion coefficients 20 times lower than 80 mil HDPE geomembrane to restrict methane, radon, and other harmful chemicals.
All LIQUID BOOT® Membranes Available in Low Temperature Variations: LIQUID BOOT® LT
For moderate-risk under slab and below-grade vertical walls, LIQUID BOOT® is an effective vapor intrusion barrier for methane, CO2, and low-level VOCs such as BTEX and chlorinated solvents. It can also be used as a concrete water reservoir and tank liner to prevent water seepage into concrete.
For high-risk under slab and below-grade vertical walls, LIQUID BOOT® PLUS combines traditional LIQUID BOOT® spray-applied membrane with high-performance VI‑20™, a 20-mil polyethylene-EVOH copolymer membrane, to form a superior vapor intrusion barrier that’s ideal for VOCs, including BTEX and chlorinated solvents.
For low-risk under-slab applications, LIQUID BOOT® 500 is an effective vapor intrusion barrier for methane and CO2. It has reduced elasticity for a more economical choice.
For high-risk horizontal applications, LIQUID BOOT® 500 PLUS combines traditional LIQUID BOOT® spray-applied membrane with high-performance VI‑20™, a 20-mil polyethylene-EVOH copolymer membrane, to form a superior vapor intrusion barrier that’s ideal for VOCs, including BTEX and chlorinated solvents.
VINTEGRA® combines CETCO's proven waterproofing technologies with advanced EVOH gas vapor protection membranes to provide a single system that protects structures from both groundwater infiltration and vapor intrusion. Available in multiple configurations to suit various construction methods, VINTEGRA® delivers reliable performance in both hydrostatic and non-hydrostatic conditions while helping protect occupied spaces from contaminants such as methane, radon, benzene, PCE, and TCE. VINTEGRA® is an ideal solution for projects requiring long-term waterproofing performance without compromising vapor protection.
COREFLEX® is a high-performance thermoplastic waterproofing membrane engineered for demanding below-grade applications where both waterproofing and gas vapor resistance are required. Its reinforced Elvaloy-KEE thermoplastic layer is integrally bonded to an Active Polymer Core (APC), creating a durable barrier with welded seams and self-sealing properties. Suitable for foundation slabs, backfilled walls, property-line walls, tunnels, and plaza decks, COREFLEX® provides long-term protection against water intrusion while helping resist the migration of soil gases such as methane, radon, and chlorinated solvents.
From design support to installation quality assurance, CETCO provides end-to-end expertise for vapor intrusion mitigation projects. Our technical specialists assess site-specific conditions and recommend proven systems tailored to your needs.
Supported by a nationwide network of certified installers and inspectors, CETCO helps ensure successful project execution. We also pioneered vapor barrier smoke testing, an industry-recognized quality control method used to identify and repair even
the smallest defects before occupancy.
General Questions: 800-527-9948, option 5
Safety Data Sheet (SDS): safetydata@mineralstech.com