Walls made of aerated concrete

Use of aerated concrete for apartment partition walls is not recommended; instead, one should use calcium silicate brick.

I think so too... that's why I asked

Hardly anyone really knows the differences between thermal insulation, thermal conductivity, heat transmission, dew point calculations, etc. etc. etc., unless they are a building physicist and can perform these calculations ... a lot of nonsense is often written ...

And what is the difference between the first 3 you mentioned? I really don't know

Nobody talks about thermal insulation in summer; it's about summer heat protection... one component is the material inertia / energy storage capacity, where lightweight building materials like aerated concrete, for example with 80 kJ/m²K, perform significantly worse than a KS with 300 kJ/m²K. KS absorbs heat better during the day to then possibly release it at night (when it is cooler) - a kind of buffer. Another step is to reduce the heat input - through shading. Other components are cooling (passive or active).

Transmission heat loss is the heat loss caused by thermal conductivity. The dew point is the spot where dew water accumulation can be expected in a wall - there are good Youtube videos on this... it’s not that complicated.

I just don't know any better. Thank you for the explanation! How does Poroton compare to [Porenbeton] in terms of summer heat protection? We are planning a 42 cm wall... but with which material

And what is the difference between the first 3 you mentioned? I really don't know

.. .. sorry .. but then I would have to copy books ... .. but if you sniff around the internet a bit, you would have enough literature ... have fun ..