When it comes to the energy-efficient renovation and façade design of buildings in Switzerland, building owners and planners are often faced with the choice between a rear-ventilated façade and a thermal insulation composite system (ETICS). Both systems have their advantages and fulfil important thermal insulation functions. In practice, however, the rear-ventilated construction offers numerous advantages in terms of durability, building physics and design flexibility.

What is an external thermal insulation composite system (ETICS)?

The external thermal insulation composite system consists of insulation boards that are glued or dowelled directly to the exterior wall. This is followed by the reinforcement and a final plaster layer. This system is comparatively compact and efficient to work with.

But there are also challenges: the ETICS is more susceptible to moisture damage, especially if there are cracks in the render layer.

What is a ventilated façade?

The rear-ventilated façade integrates a rear ventilation level between the insulation level and the outer façade cladding. This separates the cladding from the insulation level, ensures a permanent exchange of air and has a moisture-regulating effect.

In combination with a high-quality façade membrane, the thermal insulation material behind it is effectively protected against the effects of the weather.

You can also find out more about planning and installing rear-ventilated rainscreen cladding at the Swiss Specialist Association for Rear-Ventilated Facades (SFHF).

Physical advantages of the ventilated façade

The greatest advantage of the rear ventilation level is that moisture is reliably removed from the construction through the exchange of air. This is particularly important in regions exposed to moisture or in existing buildings with unclear moisture behaviour. With the rear-ventilated façade, both the insulation materials and the load-bearing components remain dry and functional. This considerably extends the service life of the entire façade.

Design diversity and flexibility

In contrast to ETICS, the rear-ventilated façade opens up significantly greater creative freedom. Whether timber cladding, fibre cement panels, metal façades or a combination of different materials - almost any architectural idea can be realised.

Conclusion

While a thermal insulation composite system is an economically interesting solution for many applications, the rear-ventilated façade scores points above all for its physical advantages, long-term security and design variety. This is a decisive aspect, especially for prestigious building projects in Switzerland.

Our specialists will be happy to advise you to our facade systems.

Façade systems directly available: We offer you suitable system solutions for the realisation of your rear-ventilated façade. Discover our products and components conveniently in our online shop.