During winter, we tend to keep windows tightly closed to preserve warmth. However, this habit often leads to excessive indoor humidity and mold growth. Proper ventilation and window maintenance can prevent these issues effectively.
Why does moisture appear?
Everyday activities such as cooking, showering, drying clothes, and even breathing release moisture into the air. When warm, humid air cannot escape, it condenses on cold surfaces — especially windows and outer walls — creating the perfect environment for mold.
How to reduce humidity:
– Air out regularly. Open your windows for a few minutes several times a day to refresh the air quickly.
– Use ventilation valves. Keep built-in vents open if your windows have them.
– Avoid blocking airflow. Do not place curtains or furniture directly in front of windows.
– Check seals and hardware. Poor sealing can cause cold drafts and condensation buildup.
– Monitor humidity. The ideal indoor humidity level is between 40–60%.
Preventing mold growth
If you notice damp corners or dark spots, clean them immediately with a mold remover and improve airflow. Regular ventilation, clean windows, and proper maintenance will keep your indoor climate healthy and your home comfortable even in the coldest months.