Large impact joints in the shell construction still within acceptance or defect?

The shell builder refers to the processing instructions of the brick manufacturer. They state:
Gap closure at butt joints 15–50 mm Butt joints up to 20 mm can be mortared with insulating lightweight mortar (maxit Therm 825).

Correct, mortared. This does NOT mean stuffing them with mortar when you can only access from two sides anymore - but also from above and logically BEFORE the next layer. They probably consider laypeople to be extremely stupid.

absolute rubbish what he is delivering there. Does he even use [Dämmmörtel] or is he just smearing in ordinary mortar? I would check that too!!

Correct, pointed. That does NOT mean stuffing it with mortar when you can only get to it from two sides anymore – but also from above and logically BEFORE the next layer. They must think the layman is extremely stupid.

Yes, they definitely do :(

Absolute rubbish what he's delivering there. Does he even use insulating mortar or just smears normal mortar in? I would check that!!

No, he uses insulating mortar, he even showed it to me at the construction site....

But it goes on. He did not cover the masonry and was last on site on Friday. It has rained heavily the last few days.
I don’t know if this might actually be a new topic, but what would be your recommendation on how to proceed (aside from complaining and demanding that the masonry be covered in the future)

If the masonry is filled with mineral wool, then you can really tear it down soon. If it is unfilled, it should also be covered, but not much will happen if it is not covered. Would point that out and leave it at that.

But it continues. He did not cover the masonry and was last on site on Friday. It has rained heavily in the last few days. I don't know if this should actually be a new topic, but what would be your recommendation on how to proceed (apart from complaining and demanding that the masonry be covered in the future)

As far as I know, the processing instructions are part of the approval, so they are essentially part of the formulation of the building material - observing them is not goodwill, but part of complying with standards. According to all processing instructions known to me, masonry crowns must be covered at the end of every working day, even if it is not followed by a weekend. Unfilled bricks are at least not quite as much debris as filled ones, but still, rain can run through the bed joint and stand in the chambers on the mortar and react with it. Constant dripping hollow out the mortar ;-) I would therefore complain about the defect and refer to it again later during the final inspection. Don't you have an expert as a construction supervisor?

As far as I know, the processing instructions are part of the approval, so they are basically part of the formulation of the building material - compliance is not goodwill, but part of standard adherence. According to all processing instructions known to me, wall crowns must be covered at every end of the workday, even if there is no weekend following. Unfilled bricks are at least not immediately as much debris as filled ones, but rain can still run into the bed joint and stand there in the chambers on the mortar and react with it. Constant dripping hollows the mortar ;-)
I would therefore complain about the defect and refer to it again later during the final inspection. Don’t you have an expert as a construction supervisor?

Yes, in retrospect I have made some mistakes, but luckily building without an expert was not one of them. The expert was last here for the inspection of the basement. According to plan, he will come next when the ceiling is in place. We have already rearranged here and commissioned an interim inspection before pouring the basement ceiling.

Also, the shell construction was supposed to have a height of 2.55 m. However, the builder has now built 10 rows with 25 cm bricks and says he will just set the ceiling a bit higher (I am also not convinced that will work).

Despite everything, I want to avoid errors as much as possible until the expert inspects the building and keep the damage as low as possible ....

Oh, and the bricks are not filled.