Fixing an awning - What is technically correct with an ETICS?

I have posted a similar topic before, but unfortunately I can't find it anymore (was it possibly deleted?) and there are newer findings. To summarize the project: We want to have an awning installed over our terrace. At first, we didn’t really worry about the mounting because we thought it wouldn’t be a big deal and it’s the daily business of the respective companies. After the first on-site appointments with two companies, we had more and more questions and doubts regarding the mounting. Maybe someone here can tell us if there is a "proper" solution or method. The mounting solutions proposed by the companies didn’t seem really plausible from a layman’s perspective.

The situation is as follows: The awning must be mounted on the ceiling slab (on the exterior wall) (concrete). However, from the concrete to the exterior wall there is, as is common nowadays (the building was built in 2018), a more or less thick insulation (I assume 12cm). In addition, the neighbors on the 1st floor have continuous floor-to-ceiling windows (full width), which of course have fall protection in the form of railings. These railings are also mounted on the ceiling slab below the windows. The awning cannot be mounted below because there are already roller shutter boxes there. Therefore, the mounting of the awning would also have to be at the same height where the railings are mounted. Probably at a good distance from the railing mountings so that you are not too close in the concrete. But this still means that the mounting of the awning would have to bridge not only the insulation to the concrete, but also the distance from the exterior wall to the railing mountings. That is another 10cm.

The following proposals were made:
Company 1: Mounting in the concrete with steel plate (?) brackets made to bridge the distance from the exterior wall to the awning. I have the feeling this is not so optimal. In a way, forces would press on the "soft" insulation, at least during the screwing on of the awning.
Company 2: Mounting on the railing brackets. I have even more concerns here because I assume they are only designed for the railings and not for an additional load of an awning plus wind etc.

Both companies also did not have an "immediate" answer or solution on site as to how they want or can solve the mounting. That was not very confidence-inspiring either, since I think our situation actually isn’t a terribly difficult one. Possibly just minimally more complex than the standard (because of the railings).

Both companies prompted us to contact a third company. This one was at least able to answer the question about the mounting directly during the on-site appointment. It is supposed to look like this: At the mounting points, a square of about 10x10cm is cut out of the insulation, then the "anchors" (quote) are fixed into the concrete. Then some kind of plastic plates are placed on them (because they supposedly have a better K-value and thus form a smaller thermal bridge). These are supposed to bridge the distance from the concrete to the awning, meaning the insulation plus the approx. 10cm distance from the exterior wall to the railing brackets. The immediate answer about the method of the mounting as well as the description initially seemed plausible to me. But since we have no knowledge in this respect, I could be mistaken. A question for me is whether it is really good to cut out the insulation so much. The mounting points would be three. Right and left on the outside for the weight and one in the middle probably to prevent sagging and for more tension of the awning.

Is this variant good/correct? Or is there a mounting here that is industry standard or considered proper?

Here is a picture of our terrace and the railings:


PS: When I see prices for more expensive models and sizes from other forum posts (not only here), I really have to be amazed. With us, the offer from the third company for a Markilux5010 in 5m x 3m was almost €5000 including radio motor :oops: But now it’s supposed to be about the mounting :)

Contact the company. They were at least able to answer the question about the mounting directly during the on-site appointment. It is supposed to look like this: A square of about 10x10cm is cut into the insulation at the mounting points, then the "anchors" (quote) are fixed into the concrete. Then some type of plastic plates are placed on top (since they probably have a better K-value and thus form a smaller thermal bridge). These are supposed to bridge the distance from the concrete to the awning, i.e. insulation plus the approx. 10cm gap from the exterior wall to the railing brackets. The immediate answer about the type and description of the mounting seemed plausible to me at first. However, since we have no knowledge in this regard, I could be mistaken. I wonder if it is really that good to cut out such a large piece of insulation. There would be three mounting points. Right and left outside for the weight and probably one in the middle against sagging and for more tension of the awning.

Of all three providers, this is the professional solution.

This is how it should look for you.
Well, it would still have to be reinforced in the area of the French balcony so that the awning is properly mounted.

Do you have to get the procedure approved by the ETG or is this part separate property (by whom then)?

The installation of an awning on the common property "exterior wall" is a structural alteration that requires the consent of the co-owners. Exceptions to this must be agreed upon in writing in the declaration of division or community regulations in advance.

You are right, logically this has to be approved by the ETG. But in our case, it is such that in an ETV, awnings were generally allowed for all owners when one of the owners applied to approve an awning for themselves. So everything is fine regarding the awning :)

Of all 3 providers, this is the professional solution.

It should look like this at your place.
Well, it would still need to be doubled up in the area of the French balcony so that the awning is properly fixed.

I wanted to address your comment, especially the pictures, again. What exactly do you mean by doubled up? And in the three pictures you posted, it doesn’t look exactly like that anywhere, as the awning company's plan... although you said that was the professional solution.

In your pictures, the "intervention" (i.e. where the insulation is cut out or "opened") clearly doesn’t look like the square cuts proposed by the awning company, which are supposed to be about 10cm x 10cm.