The New European Standard (EN 17237) for ETICS

The new EN 17237 will soon replace the EAD 040083-00-0404 standards (formerly known as ETAG 004) for external thermal insulation composite systems (ETICS). Our expert Dr. Michael Faatz explains here what the new standard means for manufacturers.

ETICS have been in use since the 1950s to insulate buildings and make them more energy efficient. Since then, VINNAPAS^® polymer powders and dispersions have played a leading role in the development of modern systems. Thanks to this experience, we were appointed to the CEN working group as experts and have contributed to the formulation of the new EN 17237. Dr. Michael Faatz, a technical manager at WACKER, specializes in ETICS and can therefore provide a first-hand report on the aim of the standard and on the areas being redefined.

“The new standard will allow manufacturers to adapt their systems to individual circumstances with less bureaucracy. That means that property developers will receive individually optimized solutions that are fully transparent and comparable”

Dr. Michael Faatz, Technical Manager, Wacker Chemie AG

Why is it a good idea to update the standard?

Dr. Michael Faatz: ETICS can make buildings more energy efficient, and we can leverage that to achieve our climate targets. Just like any construction product sold in Europe, an ETICS needs a CE label. In order to obtain the CE mark, every individual ETICS must have a European Technical Assessment (ETA). We now know that this is not really feasible.

After all, an ETICS consists of several system components. Depending on the application situation, it may make perfect sense to adapt a component to the circumstances. But any change means that the CE label is no longer valid, and the system has to be recertified.

Typical ETIC system with different system components. VINNAPAS^® dispersible polymer powders and dispersions are used in the adhesive, the base coat, the finishing and the decorative coat. Under certain circumstances the key coat is a water vapor barrier modified with VINNAPAS^®.

What are the key points and benefits of the new standard?

ETIC systems will no longer be described as individual products, but as ETIC kits. In addition, DiAP (direct field of application) rules will specify when test results are applicable for subsequent system variations. This provides manufacturers with the flexibility to tailor ETICS to changing market requirements in accordance with defined rules. At the same time, the standard retains the advantages of transparent, uniform certification and labeling.

So this is good news for manufacturers?

Absolutely. Making ETICS easier to adapt makes them easier to market. In the transition phase, there may still be uncertainties regarding the validity of tests, but we are happy to provide support here. Technically and in an advisory capacity. In the end, we will all benefit if we manage to reduce CO₂ emissions from buildings.

In This Video, Dr. Michael Faatz Offers Additional Insights into the New EN 17237

If you have further questions, please contact us!

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