Benefits of facade hydrophobization for the durability of buildings

The facade of a building is not only its appearance, but also the first line of defense against external factors. The sun, rain, snow, wind loads and dirt affect the exterior walls on a daily basis, which eventually leads to the destruction of materials. One of the most effective ways to extend the service life of a facade and preserve its aesthetic appearance is hydrophobization. Let’s find out what this technology is and why it is so important for the durability of buildings.

What is facade waterproofing?

Hydrophobization is the process of treating the surface with special compounds that give the material water-repellent properties. The essence of the technology is to create a thin protective film that prevents water penetration, but at the same time maintains the vapor permeability of the wall. This means that the facade can “breathe”, removing moisture from the inside, but does not absorb moisture from the outside.

Advantages of hydrophobization:

1. Protection against moisture: Moisture penetrating the walls is the main enemy of any building. It causes corrosion of reinforcing elements, destruction of plaster, mold and mildew. Hydrophobization prevents water penetration, which protects the walls from these negative effects.
2. Increase the service life of materials: Treatment of facades with water repellents significantly extends the service life of bricks, concrete, plaster and other materials. Protected surfaces are less susceptible to destruction under the influence of external factors.
3. Preservation of appearance: Dirt, grime and dust settle less on hydrophobic surfaces, which allows the facade to retain its fresh appearance for longer. It is also easier to clean.
4. Improved thermal insulation: Dry walls retain heat much better. Hydrophobization helps to avoid the accumulation of moisture, which reduces the thermal insulation properties of materials.
5. Savings on repairs: Regular application of water repellents can significantly reduce the cost of major repairs and restoration of facades.

Stages of hydrophobization

1. Assessment of the facade condition: Before treatment, it is necessary to diagnose the surface. Remove old coatings, dirt and damaged areas.
2. Selection of a water repellent agent: The choice of composition depends on the type of facade material (brick, concrete, plaster, stone, etc.).
3. Application of the composition: The composition is applied with a brush, roller or spray. The process is carried out in dry weather at temperatures from +5 to +30 °C.
4. Checking the result: After the hydrophobic layer has dried, its effectiveness is tested. Water is applied to the surface to make sure it has water-repellent properties.

Modern water repellents

There are various compositions on the market: based on silicones, silanes, acrylates and other components. The most popular are silane-siloxane water repellents, which provide deep penetration into the material structure and long-term protection.

When hydrophobization is required

• To protect new facades from weathering.
• To restore old buildings after renovation.
• To prevent the appearance of fungus and mold.
• To improve thermal insulation characteristics.

Waterproofing is an investment in the durability and attractiveness of your building. Regular treatment of facades not only reduces repair costs, but also preserves their original appearance for many years.