ᐅ Has the insulation for the reinforced concrete wall been installed correctly?

Dear forum,

We purchased an apartment in the Munich suburbs directly from the developer (ground floor with a hobby room in the basement). The shell construction is currently in full progress, and so far we are very satisfied with the developer and their project management (the developer also has a good reputation). The responsible project manager is always available to us and has been able to answer our questions competently so far. The entire residential complex is being built with reinforced concrete walls and to KfW55 energy efficiency standard.

Today, we were near the construction site and managed to take a look at our future apartment from the outside. We noticed that there is quite a large gap between the insulation and the reinforced concrete wall at the top of one of the basement walls (see photos attached).

We are complete beginners when it comes to construction and, of course, still have a lot of time before we take possession of the apartment (expected move-in date is autumn 2019). Still, we would like to know whether this might be a problem, especially since the insulation will no longer be visible during final inspection. Therefore, our questions are:

• Is this gap at the top actually an issue, or will it most likely be resolved as construction progresses? In photo 4, you can see how the transition from the wall to the lawn will look once completed (previous construction phase by the same developer).
• If the insulation is indeed not properly installed, should we contact the project manager and report our observation? Or would that be considered unreasonable?

Thank you very much in advance for your advice, and have a great weekend!

Yeah, it needs to be glued on, and on top of that, a drainage membrane should be installed. If water runs behind it, the insulation is basically ineffective.
However, I would assume that they simply haven’t finished yet.

If it needs to be glued, wouldn’t they at least have to redo the part where the large gap is?

Whether to glue or not is a matter of preference; the manufacturer specifies at least spot gluing depending on the load case. However, dowels are also commonly used.

What is important, as already mentioned, is that the insulation must fit flush; there must be no gaps!

This looks terrible and definitely needs to be redone.

Thank you for your feedback! I will write to our project manager and politely point out the issue.

I think some heavy-footed people have been stomping on it, and eventually someone will have to fix it.