Outer wall, interior insulation, and then slate in the new building

definitely do not insulate afterwards, because it is not necessary!

Sorry, but when I, as a layperson, see the wall construction of the thread starter, 17.5 cm aerated concrete + 14 cm thermal insulation composite system, I don’t have to be a clairvoyant to know that this building probably won’t even meet KfW 70 standards and will therefore be energetically absolutely outdated in 15-20 years! AND now please tell me, what do you do afterwards with such a facade? It’s not meant badly, but whoever wants to build cheaply and “backward,” should at least try to get a monolithic wall in order to still have the chance in years to insulate it with “low” effort, or am I seeing this completely wrong?

I am happy to be convinced, as I am just a layperson who has absolutely nothing to do with construction professionally and only tries to think logically. So don’t be OFFENDED

Hello,

By the way: a U-value <= 0.16W/m²K is no magic

exactly ... and you don't need plastic and elastics for that

Kind regards

Hello,

Whoever lives in a "plastic cover" just got the wrong advisor/planner!

Well, look at that - you should practice your sentence construction, so far it read quite differently

No one needs to be discredited, numbers and facts are always decisive.

By the way - just a small remark - why don’t you actually build houses? Afraid of your own courage?

Still, crazy greetings

Sorry, but when I, as a layperson, see the wall construction of the original poster, 17.5 cm aerated concrete + 14 cm external thermal insulation composite system, I don’t have to be a clairvoyant to know that this building will probably not even meet KFW 70 standards and will therefore be energetically completely outdated in 15-20 years! AND now please tell me, what do you do afterwards with such a facade?

and precisely for that reason, planning must be done with foresight. 17.5 cm inner masonry and 14 cm insulation are clearly too little. I can only advise the original poster to invest a bit more money in the building envelope and save elsewhere.

It’s not meant badly, but if you want to build cheaply and "backward," you should at least try to achieve a monolithic wall to have the chance in years to insulate it with "little" effort, or am I seeing this completely wrong?

Yes, unfortunately, you are seeing it somewhat wrong. It is not cheaper than choosing the right construction right away when building new. Retrofitting insulation is also structurally more difficult to implement. I’m thinking of thermal bridges and connections of the wall insulation to the roof insulation, etc. Of course, all that also works afterwards, but it costs a fortune.

So don’t be MAD

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Why should I be mad at you???

Regards

exactly ... and for that, no plastic or elastic materials are needed

the plastic cover idea came from you