Base plate with concrete core activation. What is your opinion?

Regarding the costs, you are of course right. I still had the bricks in mind, and here the price difference per brick was also double, and relating to the house the difference was then significantly higher than here with the floor slab. I don’t have money to give away, so it should be cheap, but not cheap-quality.

Especially the concrete core activation contributes to low supply temperatures, which saves real money with heat pumps

Is this achieved through the concrete core activation, or can I also achieve this with a normal structure like screed, (EPS), concrete, XPS and a similar insulation? I have looked at Jackodur [1] and the system also looks interesting. In this shell, the reinforcement and then the concrete is added. On top of that would then possibly be EPS and the screed. Could I then also work here with a low supply temperature?

The question now is really how smooth the surface of the Swedish slab is. If I also have to do rework on the screed, it doesn’t make any difference.

Very funny statement, even the structural engineer is bound by the limits of physics...

Unlike you, he will refute a manufacturer's statement through calculation, instead of spouting "impossible" from a crystal ball.

The screed layer doesn't manage 2mm over 1 meter either, right?

Yes, sure.

So the surgeon gets advice in the forum to pay a structural engineer to calculate something that most likely won't work or will cause problems? That doesn't exactly make it more economical now...

You are the only one who sees this probability. The manufacturer claims the opposite. Don’t be angry, but this is more important. And he needs the structural engineer anyway. Including this variant in the calculations is no big deal.

OK, before this gets out of hand any further

Thanks for the hint. I have noted it and will take it into account or raise it with the structural engineer at the appropriate time. It is not even clear yet whether we will use the [Schwedenplatte].

What interests me much more at the moment is the issue with the flow temperatures and whether they are so low because of the [Betonkernaktivierung] or the insulation itself. Because if it is the [Betonkernaktivierung], that would be a clear advantage. Whether it is done via the [Schwedenplatte] or independently is irrelevant.

Furthermore, I am now pondering the smooth surface and how problematic this really is. Is it more of an indication that one should be aware of occasionally having to sand something, or is it really a bigger problem if it occurs.