Oh man. I then wrote an email to the construction manager and the managing director of the construction company with photos, manufacturer specifications, and DIN standards. This evening, a statement came from the head of the executing shell construction company.
More or less saying that it couldn’t be done any other way since the first row of bricks is 30 cm and that doesn’t fit with the 36.5 cm because eventually the joints would inevitably line up. But he assured me that this would cause no problems and from the third layer onwards this wouldn’t happen anymore.
:D
1. The format is only different in width, the length is the same! The 30 cm brick is set back exactly by the difference, so it’s exactly like a 36.5 cm brick running lengthwise in the wall!
2. Even if such inevitability existed, it wouldn’t be that a whole row has exactly the insufficient overlap but the offset would gradually even out again.
They really think I’m stupid.
The construction manager is playing ostrich.
My expert also thinks the explanation is nonsense, but he doesn’t believe it is structurally problematic as long as the overlap measure is adhered to from now on. He recommends that I request a certificate of no objection from the structural engineering office and then it can be left alone.
Elsewhere I had construction experts confirm again that this is actually basic masonry 101 that offsets must be observed.
I have to say, I am really quite disappointed. I have to reconsider this every day with coffee and pretzels...