Screed or tiles with a concrete look

: can you elaborate on that a bit?

If it is real cast asphalt, it has a certain temperature when applied that heats the glass on one side and partially; as a result, the glass breaks.

That means, only the glass is at risk - if the wing is removed, the asphalt can also be installed when windows are already in place (?)

Windows should also be able to be opened to compensate for temperature increases inside the room ...

Windows should also be able to be opened to compensate for temperature increases inside

I have already heard about that and have also seen it myself when opening windows – when I grow up, I will try it myself too. However, when the sash is open, the glass is exposed to cooler air from the opening side and from behind it receives more heat from the rising warmth. In that respect, I could imagine that the warning does not refer only to closed windows.

Anyway. Gussasphaltestrich is not an option for the TE anyway due to its strongly insulating effect.