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.

REQUEST ASSISTANCE R&D SERVICES

LIQUID BOOT®

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 benfits of Liquid Boot with the added protection of the VI-20 geomembrane.

BASEFABRIC

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

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.

ULTRADRAIN

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

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 DETAILING FABRIC

VI-20 DETAILING FABRIC is a seven-layer co-extruded membrane made from polyethylene to provide strength as well as resistance to VOC vapor transmission. VI-20 Geomembrane is an underslab and vertical wall barrier that, when used in conjunction with LIQUID BOOT®, will inhibit volatile organic compound vapor migration through the concrete.

VI-20 GEOMEMBRANE

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.

Architectural Specifications

CAD Details

Case Studies

Technical Data Sheets

Technical References

500 5th Avenue

Seattle, WA

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.

Download Full Case Study

Alamitos Ridge

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.

Download Full Case Study

Buffalo Wild Wings

Metairie, LA

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.

Download Full Case Study

Canada Post

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.

Download Full Case Study

Chick-a-fil-a

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.

Download Full Case Study

Droyers Point

Jersey City, New Jersey

During the summer of 2004, construction commenced on a multi-family housing plan. A site that had been heavily contaminated with hexavalent chromium, lay vacant for nearly 20 years.

Download Full Case Study

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.

Download Full Case Study

Film Processing Facility

Hollywood, California

VOC contamination was detected in the sub slab for a project situated on a site that was once a former film processing facility.

Download Full Case Study

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.

Download Full Case Study

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.

Download Full Case Study

Hollywood Casino

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.

Download Full Case Study

Lowes Store

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.

Download Full Case Study

Meadows at River Walk

Midvale, Utah

The location - multi-family housing building, was a former Superfund site PCE, metals and arsenic contamination in the soil.

Download Full Case Study

Mott Haven School

Bronx, NY

The Mott Haven School Campus was to be built on a former manufacturing site with residualcontaminants in the soil.

Download Full Case Study

Pallisades

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.

Download Full Case Study

PanAm Village

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.

Download Full Case Study

Red Bull Arena

Harrison, NJ

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.

Download Full Case Study

Rite Aide

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.

Download Full Case Study

Sienna Place Homes

Philadelphia, PA

A prominant residential developer had selected an idle Brownfield for the site of a large multi-family residential development.

Download Full Case Study

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.

Download Full Case Study

Spring Hill Suites Hotel

Ridley, PA

The site of the Springhill Suites Hotel and Restaurant posed potential vapor intrusion concerns due to low-level VOC contaminants found in the soil.

Download Full Case Study

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.

Download Full Case Study