The WallChekâ„¢ Story
Issues in Development of a Method to Sample Hidden Mold

photo-10About the Author

Charlie Wiles holds the Federal trade name "WallChek" and numerous IAQ certifications. He is the president of Metro Environmental Company, a firm that specializes in IAQ issues for non-residential clients. Mr. Wiles is also the founder and executive director of the American Indoor Air Quality Council, the largest professional not-for-profit association for indoor air quality investigators, managers and consultants. Charlie personally specializes in behind-the-scenes consulting on cases for litigators.

Hidden mold was the problem. Finding it was the challenge.

During the early 1990s, the only accepted methodology for locating and identifying mold within walls was …