Ground-level terrace exit with façade insulation

Hello everyone,

we are now insulating the facade (16cm EPS). The insulation is supposed to be pulled down to the height of the basement windows, so it will also run under the terrace doors; the basement itself is not heated. Now the question arises as to how we best solve the terrace exits. According to the energy advisor, we are not allowed to omit the insulation under the doors. Our builder says that we cannot lay terrace slabs on the insulation because the insulation boards cannot bear the weight. One solution we found would be an exit similar to a windowsill. Unfortunately, that would create a step. It would be nice if everything were on the same level. Does anyone have an idea or maybe has faced the same problem before?

Here is a photo showing one of the terrace doors at the bottom. Insulation is being done completely around. For the terrace, fill will be added.

We almost have window sills

Cool, thank you! I just found something like that on the internet too, but yours look nicer. Do you happen to know where they are from or what they are called?

What about the windowsills? No, they were from the GU

Ok, too bad. I sent our BU a few links, maybe they will find something. The energy consultant also wanted to think about it.

In the calculation it says granit delia light. When I enter that into Google the color does not match. I do not have the sample at hand right now.