In modern construction practice in Switzerland, the use of intelligent, moisture-variable vapour retarders is becoming increasingly important. Compared to conventional, static vapour retarders, they offer decisive advantages in terms of building protection, energy efficiency and durability of the structures.

What is a vapour barrier - and why is it so important?

A vapour barrier has the task of controlling the transport of moisture from the warm room air into the insulation construction. Conventional vapour retarders are static - their diffusion resistance remains constant regardless of the climatic conditions. This means that in certain situations they allow too much or too little moisture to pass through, which can lead to moisture damage or mould growth in the long term.

The difference: How moisture-variable vapour control layers work

Moisture-variable vapour retarders such as DB passo, on the other hand, react dynamically to air humidity: during the heating period, they have a strong vapour-retarding effect to protect the insulation. In summer, on the other hand, their reduced diffusion resistance allows stored moisture to escape from the construction. This reduces the moisture load and supports dry, damage-free component behaviour.

Moisture-variable vapour control layers show their strengths especially in constructions with organic insulation materials, which are particularly sensitive to moisture. The improved moisture management minimises the risk of structural damage and ensures the insulation effect in the long term.

Building for the future: Sustainability through intelligent moisture management

In Switzerland, where climatic conditions can change significantly and energy-efficient construction is increasingly in demand, moisture-variable vapour control layers such as DB passo offer a future-proof solution. They improve the indoor climate, protect the building fabric and make a valuable contribution to sustainability.

Conclusion

The use of a moisture-variable vapour barrier instead of a conventional, static variant offers clear advantages both in terms of building physics and ecology - especially in the moisture-sensitive Swiss building climate. Here you can order our product directly.