ifac | Winter condensation problems: 6 practical tips to prevent them

Why do moisture problems arise in winter?

During winter, we close windows more often, turn on the heating, and outdoor humidity is higher due to rain and snow. This can lead to:

• Condensation: mostly visible on windows and cold walls.

• Damp walls: especially in older or poorly insulated homes.

• Mold growth: if moisture lingers in bathrooms, kitchens, or other damp-prone areas. High humidity can not only damage your home but is also bad for your health. That is why it’s important to take action in time.

How do I prevent moisture problems at home during winter?

1. Ventilate regularly 

Ventilation is key to preventing moisture issues, especially in winter. Fresh air helps discharge damp air. Keep ventilation grilles open and crack windows open daily, even if it's cold outside. If you have mechanical ventilation, ensure it is properly maintained and running continuously.

2. Limit indoor moisture production

Activities like cooking, showering, and washing add moisture to the air. Use an extractor hood while cooking and open windows in the kitchen and bathroom to vent moisture quickly. Don't leave the bathroom door open after showering to prevent dampness from spreading through the house.

3. Avoid very low indoor temperatures

Cold surfaces attract moisture, promoting condensation. Ensure your home has a constant indoor temperature of at least 15-16°C, even in rooms you use less. Do not lower the thermostat too much at night to prevent walls from cooling down and attracting moisture.

4. Check walls and windows for damp spots

Porous or poorly insulated walls and single-pane windows can attract moisture. Consider having your exterior walls treated with a water-repellent coating. Additionally, invest in high-efficiency glass (HR++) to minimize condensation.

5. Reduce condensation on windows and glass

Condensation on windows is a common winter problem. Wipe windows dry daily with a squeegee to avoid moisture buildup. Use moisture absorbers in rooms where condensation frequently occurs and ensure adequate ventilation.

6. Maintain healthy humidity levels

The ideal indoor humidity is between 40% and 60%. Use a hygrometer to measure it. If the air is too damp, consider a dehumidifier. For dry air, an air humidifier or water trays near the heaters can provide relief.

Ifac Service: your partner in worry-free property management

At Ifac Service, we look beyond just buying and selling: we help you keep your home in top condition so your property retains its value. Whether you want to prevent moisture issues, sell your home, or are looking for a new place, our experienced team is here for you. Contact us today!