One of our hotel clients had a huge mess on their hands. Mold kept coming back, even after they completed mold remediation of entire floor areas. And the building was just a few years old!

What was the solution? We surveyed the building from top to bottom, conducted air pressure measurements, moisture measurements, enlisted other experts to evaluate building mechanical systems, and we examined design and construction details.

We found a series of building enclosure and mechanical system defects that contributed to mold and moisture problems that would have kept coming back no matter what. We helped the client develop an action plan to remediate the mold - and most importantly, stop the moisture problems.

We use a combination of tools to determine if mold remediation meets post remediation verification criteria (PRV).

First, there's no substitute for a detailed visual inspection. The work area must be free of dust and debris, much the same as a typical asbestos abatement project.

After the mold remediation work area meets visual inspection criteria, we conduct mold air sampling using viable or non-viable mold air sampling techniques. Most often the client wishes to use non-viable mold air sampling due to quicker results turnaround.

We then examine the lab results to determine if airborne mold in the  remediation work area appears to be consistent with airborne mold levels in areas outside the mold remediation work area.