If you've ever walked into your basement to find unsightly, black spots growing on your walls, floor, or ceiling, you've most likely had a run in with mold. Mold and . Ir a Basement - Out of all the rooms in the house the basement is usually the most likely to contain mold growth. Because the basement is usually lower . Moisture and mold problems can occur on the ceiling for a variety of reasons. . Some say its because we have a lot of fish tanks in the basement, and heat . 23 ago. 2019 - While it is common on the outside walls, brown mold can also be inside the house. Typically, basement and ceilings are dark and damp. This is . 16 may. 2018 - Mold in a home typically grows in damp areas like the basement or . You my find yellow mold on a ceiling, inside walls, under carpeting and .