What is a common cause of mold growth in buildings?

Excess moisture from leaks or inadequate ventilation is a fundamental cause of mold growth in buildings. Mold thrives in damp environments, and when moisture is present due to leaks in plumbing, roofs, or through windows, it creates the perfect breeding ground for mold spores. Inadequate ventilation exacerbates the situation by trapping humidity and moisture-laden air inside, which can come from activities such as showering, cooking, or even breathing. Without proper air circulation, the moisture levels can increase significantly, further encouraging mold growth on surfaces like walls, ceilings, and in hidden areas such as behind cabinets and under sinks.

While inadequate heating and cooling systems, poor insulation, and high humidity levels can also contribute to mold growth, they are often results of or secondary issues associated with moisture problems. However, they do not directly address the immediate source of moisture that allows mold to proliferate. Thus, recognizing excess moisture from leaks or inadequate ventilation as the common cause is crucial in understanding mold prevention and remediation in buildings.