Vapor Intrusion Mitigation & VOC Remediation Job Photos & Commercial Radon Mitigation & School Radon Mitigation photos

WPB Enterprise has installed sub-slab depressurization
systems for VOC mitigation, Methane, CO², and Radon
in
Residential Homes, Commercial Sites
and Military bases

Commercial job list Military job photos WPB Home Page

Residential System Photos List of all WPB-radon pages

The radon mitigation design for St. Lukes Hospital included increased outdoor air
and a sub-slab depressurization system

Commercial system design almost always requires careful sub-slab communication test measurements

This published paper discusses
sub-slab
Communication Testing

A critical component to system design is measuring the differential pressures under the slab and the inside to outside pressure difference.

Sometimes it is important to determine the building leakage and the amount of outdoor air needed to pressurize the building.

In this case we needed a triple blower door to induce enough pressure change.

Published paper has additional information about
Blower Door Testing

If the building has crawl spaces it may be necessary to measure the air quality first before entering.

We have a large blower available to ensure safe working conditions in areas with limited ventilation

This PVC pipe with the fan mounted on the roof is depressurizing 60,000 square feet of this 1/2 million square foot warehouse.

Commercial buildings typically have steel re-enforced concrete that requires diamond core drills

A strip mall was built over an abandon land fill.

This explosion proof fan was used with the sub-slab depressurization system to eliminate Methane
inside the building

The technician is measuring the Methane
in the exhaust

Published paper about VOC mitigation

The depressurization fan should be installed outside the conditioned space of the building and twenty feet away from any building inlet vents.

This residential building was over a mine shaft and had excessive airflow from the soil
requiring two fans to depressurize the sub-slab

Sometimes the only place the piping can be run is on the outside of the building

This sub-slab depressurization system was installed on military base housing in Okinawa Japan.

More Okinawa pictures

In this case the piping was routed up the outside but the fan was located on the roof.

Published paper about
School Mitigation

A U-Tube Monometer is installed on each system to indicate fan operation.

Labels indicate who to call for service

An information package is also attached to the system

This was a large factory in New Hampshire with VOC's that we designed a sub-slab depressurization system for.

Example of WPB

Commercial Mitigation Drawings

If you have any questions please feel free to call Bill at 610 346-8004

Commercial job list Download a Resume

Guam & Okinawa installations Published Research Papers

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