Moisture sealing of floor slab

Hello everyone, the waterproofing membranes will then be raised along the exterior walls like a basin for better moisture protection. After the house builder was informed of this by me, he replied: the waterproofing membrane will NOT be raised on the exterior wall. Installation complies with the requirements of the DIN. How necessary is this? Should I insist on having the waterproofing membrane raised on the wall?

Are the walls standing on [Schweißbahnen]? Pulling them up is not necessary, whether you want to insist on it is up to you, but I think you will hit a wall with your house builder because of that...

As it appears, the wall barrier membrane is also missing

Yes, what did they put under the [Mauerwerk]?

Something can be seen under the masonry

Are the walls standing on welded sheets? Pulling them up is not necessary, whether you insist on it or not is up to you, but I think you will hit a stone wall with your house builder...

Already somehow readable between the lines from the house builder's response.