Sometimes mold is hidden inside walls, ceiling assemblies, or crawlspaces where it can grow undisturbed for years. Cavity testing gets around that by sampling the air directly inside those spaces through a small opening. This matters because mold growing inside a wall doesn't always show up clearly in a standard room air test, and this method helps us find what's happening where you can't see it.
Sometimes mold is hidden inside walls, ceiling assemblies, or crawlspaces where it can grow undisturbed for years. Cavity testing gets around that by sampling the air directly inside those spaces through a small opening. This matters because mold growing inside a wall doesn't always show up clearly in a standard room air test, and this method helps us find what's happening where you can't see it.
