Should the ETICS (External Thermal Insulation Composite System) be left on or removed on the gable-side extension?

Hello, sorry for the late response. In the meantime, quite a bit has happened and the current proposal from the architect is to do without the partition wall. Consequently, we will of course remove the insulation. I am also happy to present the proposal again in a new thread. Maybe someone will have a good idea. Best regards

sorry for the late response.

As you can see, I have also had little time for your concern meanwhile.

the architect's current proposal is to do without the partition wall.

I can't quite follow that - which partition wall?

Folglich entfernen wir die Isolierung natürlich.

Very good. These polystyrene ETICS are criticized for health-hazardous fumes. No idea if there is really anything to it. The stuff is also flammable. Together with the 60cm thick walls, the decision to remove the stuff where it is no longer needed is very, very easy.