Impact sound insulation in floor slab

That's right, and since the floorboards are lying on the battens anyway, the possible reworking probably won't matter much. Now I just have to find out how well the hemp-clay fill tolerates the residual moisture.

That's right, and since the floorboards are lying on the battens anyway, the possible rework probably won't matter that much. Now I just have to find out how well the hemp-clay filling tolerates the residual moisture.

You probably won't get a definitive answer because it can't be precisely estimated. Can't you just put OSB directly on without the filling for now, and then add the insulation after it has dried? Or, an idea from my excellent site manager back then, simply use fine, dry sand as insulation. That would also absorb moisture and later you can just remove the sand again.

Since the apartment is to be rented out immediately after completion, unfortunately this is not an option. However, I will clarify this.

oh dear....then you probably have to dry massively and take the risk by finishing directly. I think insulation will also absorb moisture, you just have to watch out for mold/rot.....toitoitoi

Since the apartment is to be rented out directly after completion, that is unfortunately out of the question. But I will clarify that.

And....how did this topic develop further for you?