Can mold contamination inside a wall cavity be identified?
Yes. For example, after a basement has flooded and the water is extracted, the carpet should be removed and the floor disinfected. However, a mold odor may still be present and the mold source not easily recognizable. Wallboard, paneling, plaster, wood and insulation that make up the walls in a basement absorbed moisture up into the wall cavity and mold growth resulted. Wall cavity samples are collected through very small, drilled holes, cultured, and analyzed similarly to airborne samples. Collection of a control wall cavity sample in a wall that was not affected by the moisture is recommended for comparison purposes.