What conditions promote mold growth in structures?

High humidity and lack of ventilation are key conditions that promote mold growth in structures. Mold thrives in environments where moisture is abundant, as it needs water to grow and reproduce. High humidity levels, particularly above 60%, create an ideal environment for mold to flourish.

In conjunction with high humidity, insufficient ventilation prevents moisture from escaping the environment, thus allowing it to accumulate. This stagnant, moist air provides a perfect breeding ground for mold spores, which can settle on surfaces and begin to grow when conditions are favorable.

On the other hand, low temperatures and dry air do not support mold growth. Mold prefers warm, humid environments rather than cold, dry ones. Exposure to direct sunlight and wind can also hinder mold growth, as UV rays from sunlight and air circulation help to dry out surfaces and reduce moisture levels. Frequent cleaning and disinfection are generally effective in preventing mold growth by removing spores and reducing moisture, making the conditions less favorable for mold to establish.