How to Combat Humidity in a Garage?

Humidity is often a real headache in garages. It can cause mold, damage materials, and make the air less pleasant to breathe. I’ve personally experienced how quickly a humid garage can become a problem, especially when you want to protect your vehicles and stored items. Here are some solutions I’ve tested that really work to keep a garage dry and healthy.

1. Improve Airflow and Ventilation

A garage that doesn’t breathe is a perfect ground for humidity. Installing ventilation grilles at the top and bottom of walls helps air circulate naturally. Otherwise, a mechanical ventilation system is also very effective to prevent stagnant air and condensation.

2. Waterproof Walls, Floor, and Roof

Water infiltration can come from anywhere: walls, floor, roof... To fix this, I applied a waterproof coating on sensitive surfaces and repaired cracks as soon as they appeared. I also use Mister Dalle modular tiles on the floor, which are not only water-resistant but also very easy to clean, limiting humidity problems.

3. Install a Dehumidifier

When my garage is somewhat insulated or poorly ventilated, I add an electric dehumidifier. This small device regulates the humidity level in the air and prevents mold formation. It’s a simple solution that really makes a difference, especially in winter or in humid regions.

4. Avoid Standing Water Accumulation

I also made sure the floor is slightly sloped toward a drainage point to prevent water from pooling after washing or rain. Using mats or draining tiles helps keep the surface dry and safe, especially around traffic areas.

5. Treat Surfaces with an Antifungal Product

To prevent mold, I apply an antifungal treatment on walls and floor, especially after deep cleaning. These products create a durable protective barrier that stops fungi and bacteria from returning too quickly.

In Conclusion

Maintaining a dry and healthy garage requires some attention: good ventilation, careful waterproofing, and appropriate equipment. By combining these tips with regular maintenance and water-resistant flooring like modular tiles, you effectively limit humidity damage and preserve your space for the long term.