Humidity Control in Belgium: Everything You Need to Know
Moisture is a common problem in buildings in Belgium, whether in older homes or modern constructions. It can cause structural damage, health problems, and decrease the value of your property. In this article, discover why moisture control is essential, how to identify signs of moisture, and what solutions exist to address it.
Why is Humidity Control Crucial in Belgium?
Belgium is known for its humid climate and frequent occurrences. These weather conditions present the appearance of moisture problems in buildings, including:
- Water infiltration: Problems related to roofs, poorly insulated walls or cracks.
- Excessive condensation : Caused by poor ventilation.
- Rising damp : Phenomenon where humidity rises from the foundations towards the walls.
These problems can lead to:
- Structural damage : Deterioration of walls, floors and ceilings.
- Mold and fungi : Risks to the respiratory health of occupants.
- Real estate depreciation : Negative impact on the value of your property.
Humidity control is therefore essential to preserve your house or apartment, ensure your comfort and avoid high repair costs in the long term.
Telltale Signs of a Moisture Problem
How do you know if your building has a moisture problem? Here are some signs to look out for:
Moisture stains on the walls
- Appearance of yellow, brown or greenish spots.
- Paint that is blistering or peeling.
Unpleasant odors
- A lingering musty smell is often a clear indicator.
Visible mold
- Presence of black or green fungus on walls, ceilings or windows.
Cracks in the walls
- Cracks can be caused by water infiltration or rising damp.
Swollen or warped floors
- Wooden or laminate floors can warp due to moisture.
Humidity Diagnosis: How to Proceed?
An accurate moisture diagnosis is the first step in solving the problem. Here are the methods used:
1. Visual inspection
An expert visually examines suspect areas to identify potential sources of moisture.
2. Humidity tests
- Hygrometer : Measures the humidity level in the air.
- Electrical conductivity test : Determines the moisture level in materials (walls, floors).
- Salt analysis : Identify the presence of mineral salts, often associated with rising damp.
3. Infrared thermography
This technology makes it possible to detect cold or humid areas invisible to the naked eye.
Solutions to solve humidity problems
Once the diagnosis has been established, several solutions can be implemented depending on the nature of the problem.
1. Improved Ventilation
- Installation of controlled mechanical ventilation (CMV) systems.
- Use of dehumidifiers in humid rooms such as bathrooms.
2. Treatment of Rising Damp
- Injection of hydrophobic resins into the walls to block the rise of humidity.
- Creation of a waterproof barrier at the foundation level.
3. Waterproofing of Walls and Roofs
- Application of water-repellent products on exterior walls.
- Repair of cracks and defective joints.
4. Thermal insulation
- Reinforcement of insulation to reduce thermal bridges and limit condensation.
5. External drainage
- Installing drains around the house to evacuate water away from the foundation.
Regulations and Financial Aid in Belgium
In Belgium, several regulations and financial aid are available to encourage homeowners to address humidity problems.
1. Regulations
- PEB (Energy Performance of Buildings) standards : Require maintaining a good level of airtightness and ventilation.
- Planning permission : Certain works require prior authorization.
2. Financial Aid
- Regional premieres :
- In Flanders , grants are available for insulation and ventilation.
- In Wallonia , the “Renovation” program offers subsidies for waterproofing work.
- In Brussels , the Region offers aid through the “Prime Eco-Bâtiment” program.
- Tax credit : Certain expenses may be tax deductible.
Frequently Asked Questions About Humidity Control
1. What is the average cost of a humidity diagnosis?
The cost varies depending on the size of the building and the complexity of the problem. Expect to pay between €150 and €500 for a complete diagnosis.
2. How long does it take to resolve a moisture problem?
It depends on the severity of the problem. Simple solutions (such as installing a VMC) can be completed in a few days, while more extensive work (treating rising damp) can take several weeks.
3. Is it possible to prevent humidity problems?
Yes, by ensuring good ventilation, carrying out regular maintenance and using suitable materials during construction or renovation.
Conclusion
Humidity control is a crucial aspect of building management in Belgium. Whether you live in Flanders, Brussels, or Wallonia, it's essential to understand the causes, signs, and solutions to protect your home or apartment. By acting quickly and following best practices, you can avoid costly damage and maintain your comfort.