Vapor Intrusion Mitigation
Protecting indoor air quality
Vapor Intrusion has become a significant environmental issue for regulators, building designers, and concerned residents nationwide. CETCO offers uniquely designed vapor intrusion barrier systems developed to meet the needs of your project. Our experienced technical managers can assist with the design of the system, and recommend the best solution based on various site conditions. Our systems have proven performance with extensive track record. CETCO offers innovative vapor intrusion barrier systems that will reliably provide the protection from these potentially harmful vapors that could compromise overall indoor air quality.
LIQUID BOOT® is a seamless, spray-applied, water-based membrane containing no VOCs, which provides a barrier against vapor intrusion into structures. LIQUID BOOT® is installed under slab and on below grade vertical walls as a gas vapor barrier to minimize vapor and nuisance water migration into buildings. LIQUID BOOT® spray-application directly to penetrations, footings, grade beams, pile caps and other irregular surfaces, provides for a fully-adhered gas vapor barrier system.
LIQUID BOOT® 500
LIQUID BOOT® 500 is a seamless, spray-applied, water-based membrane containing no VOCs, which provides a barrier against vapor intrusion into structures. LIQUID BOOT 500 is economically formulated specifically for horizontal applications. LIQUID BOOT 500 spray application directly to penetrations, footings, grade beams, pile caps and other irregular surfaces, provides for a fully-adhered gas vapor barrier system.
LIQUID BOOT® PLUS
The Liquid Boot Plus system is designed for the most challenging conditions. The system combines all of the benefits of Liquid Boot with the added protection of the VI-20 geomembrane.
BASEFABRIC™ fabric consists of polypropylene, non-woven geotextile that is resistant to ultraviolet degradation and to biological and chemical environments normally found in soils. BaseFabric provides a uniform substrate for spraying the Liquid Boot membrane.
GEOVENT™ consists of a three-dimensional vent core that is wrapped in a non-woven, needlepunched filter fabric.
LIQUID BOOT® TROWEL GRADE
LIQUID BOOT® TROWEL GRADE is a trowel-applied, water-based membrane containing no VoCs, which provides a barrier against vapor intrusion into structures. LIQUID BOOT TROWEL GRADE is installed in conjunction with the LIQUID BOOT vapor intrusion barrier to minimize vapor migration.
TECHNICAL DATA SHEETS
ULTRADRAIN™ consists of an impermeable polymeric sheet cuspated under heat and pressure to form a high flow dimpled drainage core. The core is then bonded to a layer of non-woven filter fabric. The filter fabric retains soil or sand particles as well as freshly placed concrete or grout, allowing filtered water to pass into the drainage core. Ultradrain also has a protection sheet bonded to the backside of the cuspated core providing protection for soft membrane barrier systems.
ULTRASHIELD™ fabric consists of polypropylene, non-woven geotextile that is resistant to ultraviolet degradation and to biological and chemical environments normally found in soils. UltraShield provides protection for the membrane from rebar and other construction processes.
VI-20™ is a 7-layer co-extruded EVOH geomembrane made using high quality virgin-grade polyethylene and barrier resins that provide unmatched impact trength as well as superior resistance to VOC vapor transmission. EVOH technology serves as a highly resilient underslab and vertical wall barrier designed to restrict methane, radon and other harmful chemicals. Applications for EVOH originatedin them of hydrocarbons, whose use was mandated by the US EPA and the CA Air Resources Board (CARB) to reduce VOC emissions.
Case Study: Toronto Fire Services
CETCO Provides Superior Vapor Mitigation Protection at Major Retailer
Spray-applied methane barrier chosen as protection to homes built near oil derricks
CETCO VMS Chosen for Popular Restaurant Situated Near Former Dry Cleaner Site
Spray-applied Barrier is Proven Vapor Mitigation Strategy for Site with Methane
High-performance Geomembrane with EVOH Technology Part of Gas Vapor Mitigation Solution
Prominant Developer Chooses CETCO Gas Vapor Barrier for Chromium Protection
Gas Vapor Mitigation System Utilizing EVOH technology as Solution to TCE Contamination
EVOH Vapor Mitigation System Used to Protect Against Residual VOC Contamination
Spray-applied Gas Vapor Barrier Solution for Housing Development on Former Landfill Site
Gas Vapor Mitigation System Maintains Construction Schedule in Cold Weather
CETCO Gas Vapor Barrier Chosen as Solution for High-profile Casino Project
Spray-applied Gas Vapor Barrier Chosen as VOC Protection on Former Superfund Site
CETCO Vapor Mitigation System Chosen as VOC Protection Barrier for School Campus
CETCO Gas Vapor Barrier Chosen by Top Home Builder for Site with Former Oil Wells
CETCO Gas Vapor Barrier Chosen by Risk Assesors for Mixed-use Re-development
CETCO Vapor Mitigation System Chosen as Protection for High-profile Sports Stadium
Spray-applied Barrier is Proven Methane Mitigation Solution on Former Gas Station Site
Prominant Developer Chooses CETCO Gas Vapor Barrier for Methane Protection
Superior VOC Protection for Project Situated on Former Railroad Site
Gas Vapor Mitigation System Maintains Construction Schedule in Cold Weather
LIQUID BOOT®; Strict Quality Assurance Procedures Ensure Reliable Vapor Intrusion Protection
LIQUID BOOT®; Proven Protection Against Petroleum Gas and Water Migration
Technical Data Sheets
500 5TH AVENUE
The owner of this new mixed-use 38-story condominium needed below-grade space that was dry and watertight. Because the foundation wall construction was shotcrete installed in a property-line method, CETCO’s waterproofing was the perfect solution.
Signal Hill, CA
The site of Aubry at Alamitos Ridge single-family housing development by Lennar Homes is also the site of multiple active oil derricks. To solve the problem LIQUID BOOT® membrane was installed under dozens of single family homes with great success.
BUFFALO WILD WINGS
The location of a new, two-story Buffalo Wild Wings restaurant was adjacent to a former dry cleaner site. The primary concerns were chlorinated compounds and benzene.
Toronto, ON, Canada
The site for the new Canada Post headquarters was situated on a former industrial location and is a major redevelopment zone for the city of Toronto. The site was contaminated by methane as well as located on bayfill.
Fort Worth, Texas
The owner of the former manufacturing site and the engineer understood the value of having a barrier with superior vapor resistance and a long standing track record to protect the indoor air quality of the restaurant.
EL CENTRO REGIONAL MEDICAL CENTER
El Centro, CA
Prior land use was for “El Centro Motors”, an automobile dealership and service facility. There was some contamination in the soil & groundwater due to underground storage tanks.
FILM PROCESSING FACILITY
VOC contamination was detected in the sub slab for a project situated on a site that was once a former film processing facility.
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FRATERNITY MEADOWS DEVELOPMENT
Secaucus, New Jersey
The Fraternity Meadows development is a specialized community project situated on a former landfill with detectable levels of methane gas in the soil. This project is home to a new mutli-family housing structure.
HAMLET MIDDLE SCHOOL
Woonsocket, Rhode Island
The soil conditions for the site of two 60,000 square foot school buildings in Woonsocket, RI was complicated by contamination from TCE, PCE and petroleum-based soil gas vapors.
Columbus, Ohio, U.S.A
A $400 million redevelopment project that will be the site for a new gaming casino was formerly an automotive factory. The primary contaminants of concern on this 123 acre brownfield site Primary concern were residual chlorinated compounds from former cleaning and manufacturing activity.
Ithacam NY, Ocean Township, NJ, Patterson, NJ
With more than 60 years of experience, CETCO is an industry leader in Gas Vapor Mitigation technologies and solutions.
MEADOWS AT RIVER WALK
The location - multi-family housing building, was a former Superfund site PCE, metals and arsenic contamination in the soil.
MOTT HAVEN SCHOOL
The Mott Haven School Campus was to be built on a former manufacturing site with residualcontaminants in the soil.
Yorba Linda, CA
The Palisades at Vista del Verde is a multi-family housing development that is situated on a site that once was home to numerous oil wells. The oil wells have since been removed and capped, however detectable levels of methane gas are present in the soil.
Toronto, ON, Canada
The site for the Pan Am Athletes Village, a mixed-use redevelopment, is situated on an abandoned piece of property known as West Don Lands. Most of the land was industrial or owned by the railways, and it became the site of an array of factories and warehouses, including one of the largest pork processing facilities in the world.
RED BULL ARENA
A sports team chose an idle brownfield location in Harrison, NJ as the home for their new stadium. To mitigate potential vapor intrusion concerns, Louis Berger Group specified the LIQUID BOOT® gas vapor barrier system and GEOVENT™ sub slab depressurization system as a part of their overall remedial design.
Prospect Park, PA
Situated on a former gas station site, elevated levels of petroleum hydrocarbons were detected in the soil. The area was a prime location for the retail facility and solutions to mitigate the contamination were actively sought.
SIENNA PLACE HOMES
A prominant residential developer had selected an idle Brownfield for the site of a large multi-family residential development.
SMITH PERFORMING ARTS CENTER
Las Vegas, NV
Smith Performing Arts Center needed to protect the 125,000 sq. ft. structure from residual VOC contamination in the soil. Portions of the project are situated in the water table, therefore, protection from water migration was also required.
SPRING HILL SUITES HOTEL
The site of the Springhill Suites Hotel and Restaurant posed potential vapor intrusion concerns due to low-level VOC contaminants found in the soil.
TORONTO FIRE SERVICES
Toronto, Ontario, Canada
Vapor intrusion has become a significant environmental issue for regulators, industry leaders, and concerned residents nationwide. The use of a spray-applied gas vapor barrier to protect against the threat of vapor intrusion has become a widely recognized application by numerous local and state regulatory and guidance groups. These groups also recommend that a gas venting system be used in conjunction with the gas vapor barrier for optimum mitigation of gas vapor.