Mold Testing

Is a Home Inspector's Mold Testing Relevant?

NO. Home inspectors invariably do not conform with American Industrial Hygieniests Association guidelines:

"Should I test my home for mold? Probably not. Looking for evidence of water damage and visible mold growth should be your first step. Testing for mold is expensive, and you should have a clear reason for doing so. In addition, there are no standards for “acceptable” levels of mold in the indoor environment. When testing is done, it is usually to compare the levels and types of mold spores found inside the home with those found outdoors. If you know you have a mold problem, it is more important to spend time and resources getting rid of the mold and solving the moisture problem causing the moldy conditions."

According to Caoimhín P. Connell, Forensic Industrial Hygienist, "With the elevated public awareness and unfounded fear of indoor molds has come a new type of consultant, the “Mold Inspector.” Generally speaking, these consultants are poorly versed in microbiology, mycology, the occurrence of molds, their assessment, and their significance. Based on our experience, the credibility of the “certified mold inspector” is almost exclusively found in the collection of “samples” and the production of “laboratory reports.” The samples collected by most “mold inspectors” are unscientific, uninterpretable, and largely meaningless, but which are often printed on impressive and official “Laboratory Reports.”


"Sampling and testing in mold assessments is virtually never needed, and virtually never provides any information that is not otherwise immediately available to a legitimate Industrial Hygienist. Overall, most legitimate mold experts seldom see a need to collect any kind of samples. Usually, the only consultants who routinely collect mold samples or conduct mold tests are those consultants who need the laboratory report to achieve an image of credibility with the client, since they otherwise lack legitimate knowledge in the subject area. Knowing the species and/or genus is virtually never useful information.

It is impossible, outside the context of a priori DQOs, to compare indoor samples and outdoor samples.
Virtually ALL of the hundreds of samples FACTs has reviewed over the years collected by Home Inspectors and “certified mold remediators” or “certified mold inspectors” were useless or meaningless (or both), and always unnecessary."

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