Skepticism regarding ETICS on new multi-family residential buildings

Thank you very much, yes, informing earlier is certainly correct, but catching all the clarification beforehand is rather unrealistic. The real shock came when I attended a builder’s expert lecture, where one was very competently informed about building materials. That means you grow into the topic. The fact is, from my point of view for the future. Thermal insulation made from future special waste, now the lobby cashes in and already (knowing this) profits handsomely to force the owner in a few years to dispose of the special waste expensively. It is perverse to manufacture environmentally harmful insulation material in order to protect the environment. I can imagine that there will be mandatory requirements again, insulation with clay and straw??? Whoever has enough money builds with bricks, plaster on it and done and doesn’t care about the KFW subsidy. Unfortunately, I am not affected by this blessing. At the moment, I still have an alternative, to remain as a tenant in an old building. Best regards Frank

For exactly these reasons, we decided on the "brick-plaster" variant. However, with mineral wool in between. ;-) For various reasons, I am not a fan of comprehensive polystyrene insulation.

Well, and I have been writing all along that if companies work properly, then nothing needs to be disposed of. Of course, if botching is done, then that's a different matter, but botching can also happen with the best brick without [WDVS]...that's not an insulation problem...and contrary to popular belief, polystyrene is not hazardous waste but can be cleanly recycled...and that is not a statement from the lobby but has also been confirmed by the Fraunhofer Institute...that disposal companies take advantage of this and exploit ignorance is simply market economy.

And polystyrene will probably never be banned...it is cheap, meets the requirements or the purpose, and is also environmentally neutral...

Attention! You have fallen for fools here! But I don't mean the property developer, rather those documentaries of the "outrage TV" kind.

This is really an exemplary topic. You either like it or avoid it like the plague. Especially with polystyrene, the current debate about the fire properties is in full swing. It is supposed to be flame-retardant (through the addition of a whole range of chemicals), but then burn like hell once it has caught fire.

This raises the question of whether this insulation can/should later become hazardous waste, as the used (fire-retardant) chemicals actually do not belong in normal waste.

As far as I know, there are also no long-term studies on the durability of this insulation. What is clear, however, is that this insulation is easy to process and quite inexpensive. Exactly these aspects always make me attentive. I am now somewhat older (so to speak, I already “smell of earth”) and from my experience, things that really don’t cost much but have the same or better properties than conventional methods are always associated with some disadvantages. This is often a lack of durability and this could be the future disposal issue here. It is somehow lightweight construction. ;)

This is really an exemplary topic. You either like it or avoid it like the plague. Especially with polystyrene, the current debate about fire properties is in full swing. It is supposed to be flame retardant (due to the addition of a whole range of chemicals), but then burn like hell once it catches fire.

A whole range is wrong! It is mostly still about HBCD. "Still" because there is a directive that says it must be replaced by alternatives this year (I believe from August) that are more biodegradable.

This raises the question of whether this insulation could/should be hazardous waste later, since the used (fire-retardant) chemicals actually do not belong in normal waste.

It is not hazardous waste, but a recyclable material. ;) Polystyrene can be reused, for example, also for insulation. But in reality, the vast majority is thermally recovered. That means it ends up in the incineration plant.
Glass wool, on the other hand, is hazardous waste and can only be landfilled!

To my knowledge, there are also no long-term studies on the durability of this insulation. What is certain, however, is that this insulation is easy to process and costs relatively little. Exactly these aspects always make me wary. I am now somewhat older (so to speak, I already smell like earth) and from my experience, things that really don't cost much but have the same or better properties than the conventional method come with some disadvantages. That is often the lack of durability, and that could be the future disposal here. It's somehow lightweight construction. ;)

Styrofoam was partly already used at the end of the 1960s. Reduced durability is actually not known. It is within the normal range of plastered facades.

My speech... please inform yourself first and then shout... and please do not support the sensationalism of reporters...

The fact that polystyrene burns is, of course, true... but wood does too, yet wooden houses are still built... or what about thatched roofs on our coasts? These are extremely flammable, especially in midsummer...

Polystyrene is simply another material that can be used nowadays, or not. However, it is not the devil's stuff that people always talk about, and if, against expectations, disposal becomes necessary, it is relatively easy to remove from the house, separate from the other components ([Armiergewebe] etc.), and then either turned into granulate or reused by means of a solution, or, for all I care, simply burned... residual waste is also burned by the ton every day...