Diffusionsoffenes Abdichtungssystem schützt eine Fassade und lässt Feuchtigkeit entweichen

Was Ist Diffusionsoffene Abdichtung?

Traditional waterproofing systems are designed to keep water out. However, completely sealing a surface can sometimes trap moisture inside building materials, leading to long-term damage.

Breathable waterproofing takes a different approach. It helps prevent water penetration while allowing moisture vapor to escape naturally from the structure.

For a complete overview of waterproofing technologies, read: Types of Waterproofing Methods and Technologies Explained

What Is Breathable Waterproofing?

Breathable waterproofing systems help to:

  • Reduce water absorption
  • Allow moisture vapor to escape
  • Support natural drying of building materials
  • Minimize long-term moisture-related problems

They are commonly used on concrete, brick, natural stone, and other porous building materials.

How Does Breathable Waterproofing Work?

Breathable systems reduce the absorption of liquid water without blocking vapor diffusion.

This allows moisture already present within the material to evaporate naturally, helping walls and structures dry while reducing the risk of trapped moisture.

Why Is Vapor Permeability Important?

When moisture cannot escape, a variety of problems can develop over time:

  • Damp walls
  • Peeling paint
  • Mold growth
  • Efflorescence
  • Freeze-thaw damage
  • Reduced insulation performance

For this reason, moisture management is often just as important as protecting a structure from external water.

Learn more: What Causes Moisture in Walls?

Benefits of Breathable Waterproofing

  • Reduced water absorption
  • Lower risk of trapped moisture
  • Improved drying performance
  • Enhanced durability of concrete and masonry
  • Long-term protection against moisture damage

Common Waterproofing Mistakes

Many moisture problems occur because the wrong waterproofing system is selected.

  • Applying non-breathable coatings to damp walls
  • Sealing surfaces without considering internal moisture
  • Blocking vapor movement within building materials

Compare different approaches here: Surface vs Penetrating Waterproofing, What’s the Difference?

Real-World Example: Breathable Waterproofing for Moisture-Prone Buildings

Buildings exposed to frequent rainfall, humidity, groundwater pressure, and ongoing moisture movement often experience problems when non-breathable waterproofing systems are used.

Common issues include:

  • Peeling paint
  • Damp walls
  • Trapped moisture within the structure
  • Deterioration of concrete and masonry

Breathable waterproofing systems such as Logic EX are often used to reduce water absorption while still allowing moisture vapor to escape.

This helps support natural drying, reduce moisture-related damage, and improve the long-term durability of façades and building materials.

How Hydrophobic Protection Supports Breathable Waterproofing

Hydrophobic protection and breathable waterproofing often work together.

While hydrophobic treatments help reduce water absorption, vapor permeability remains intact. This allows building materials to stay dry while continuing to release trapped moisture.

Looking for a Breathable Waterproofing Solution?

Not every waterproofing system is suitable for every structure. For concrete, brick, stone, and other porous materials, vapor permeability often plays a critical role in long-term performance.

Contact Logic Chemie for technical guidance and discover which breathable moisture protection solution may be suitable for your project.

Contact Us

Frequently Asked Questions

What is breathable waterproofing?

A waterproofing system that helps repel water while allowing moisture vapor to escape from building materials.

Why is vapor permeability important?

It helps prevent trapped moisture and supports the natural drying process of walls and building materials.

Can breathable waterproofing be used on concrete?

Yes. It is commonly used on concrete, brick, natural stone, and other mineral-based building materials.

Is breathable waterproofing suitable for façades?

Yes. It is widely used to protect façades from moisture while maintaining vapor permeability.

Conclusion

Breathable waterproofing helps protect structures from water while supporting the natural drying process of building materials.

By combining water repellency with vapor permeability, it can help reduce moisture-related damage and improve the long-term durability of buildings.

Entdecken Sie weitere Blogs