The excess humidity that causes window condensation not only damages sills and trim, it can result in mold and mildew growth and degrade indoor air quality. If your windows have condensation, it’s important to identify the reasons why, such as: Insufficient ventilation. Without adequate ventilation and air exchange, excess moisture from respiration, cooking, bathing and other daily activities can stay trapped inside a dwelling. Inefficient windows. High humidity in a home is more likely to cause condensation on single pane […]