Damp proof course masonry

Hello,
thank you very much for the feedback. The funny thing with us is that we had so much delay during construction that it took forever until the screed was poured, and therefore it is hard to imagine that there was still some residual moisture. However, we carried out moisture measurements indoors, and it was bone dry there weeks before the screed was poured.
Now I ask very layman-like whether there are drainage/ventilation joints in clinker exterior walls as well? Somehow it is quite significant with the additions (ventilation panels / faucets) – if vertical joints were omitted for ventilation or similar, then one would probably be on the right track (I have to get a ladder for that).

I'm just asking very basically whether there are also drainage/ventilation joints in clinker exterior walls? Somehow this is quite significant in the extensions (ventilation cover / water taps) - if vertical joints were omitted for ventilation or similar, then that would be the right way (I have to check with a ladder)

The question is whether there is rear ventilation or not. We didn't have any and therefore no openings in the facade.

So, despite rain and storm, I drove to the construction site with a ladder and can now definitely confirm that we have vertical gaps in the joints at mid-height... I have read in some articles on the internet that this is actually no longer state of the art, but that the exterior walls are completely sealed... It seems to me right now that moisture forms at these points and is then distributed on the outside of the facade by capillary action (it also goes upwards) - I can't really think of anything better?! One could still close the gaps in the facade afterwards, or is there any expert opinion against it? Best regards

No, you are not allowed to do that. The variant without ventilation has different insulation and different details. There is something else wrong. As already mentioned, look into the gap once with a borescope.