10. About the absurde insulation

German buildings have some rules about thermal insulation, which is great, I was able to experience it last winter and can confirm that the flat has kept warmth well. However, this Summer, we had serious heatwaves and I also noticed that the flat also kept the heat from the outside... inside very well as well.
Every morning, when the temperatures were lower, I made sure to ventilate my flat so the apartment would cool down a bit before I would closed the windows and shutters. However, as it is a full concrete building, the cumulated heat from the day before would be released and the temperatures would rise even on cooler days during the day and despite my efforts.

Considering that climate change has already changed the seasons, Summers, even in Germany will get hotter and hotter, so why not take this into consideration for new buildings?

Some are equiped with heat pumps which can also be used to cool the air down, but mine is heated with bio gas whose price increased, therefore so are my invoices.

The other downside of a full concrete building is the lack of phonic insulation. I can distinctly hear all the cars and tramway and feel the vibrations from the road in front of the building. When my neighbours walk (probably with wooden or lead clogs by the noise of it), I can hear their footsteps and my walls vibrate. I can also hear the dog barking and the baby crying from the ground floor, I live on the second floor.
For a country that is obsessed by "Lüft", one can expect that apartments would be built with this in mind, meaning that the positioning of the windows would enable draught. In case the bathroom would not have windows, a good ventilator systems would be very clever.
Of course, it is not the case.