Construct attic floor

Hey,

we had our house built in 2015. Of course, we really ran into trouble with it and then did most of the work ourselves so that we could at least move in in 2017. Now at the end of 2019, we have new additions: 2 girls, of course. So now the issue begins, namely my study has to give way soon to create a second children's room so that one of the two girls can have her own room in the future. The attic definitely has potential to create my workspace there. Insulation is installed, the sloped ceilings are covered with OSB boards, and I want to put ceiling panels over them because I think that looks better than painting over the OSB boards. We had problems with that in the lower rooms. My biggest problem, and this is where I want to ask for your advice, is the floor in the attic. It is constructed so that there is insulation between the beams and then thick chipboard panels are supposed to form the floor in the attic. I think that is too little because the floor has waves or is uneven. My question is: can I put a leveling screed on these chipboard panels and then lay dry screed panels on top to then lay laminate over it, or would that be too much weight? Unfortunately, I only have photos showing the wooden beams from below where the chipboard panels are installed above before the space was insulated. Maybe that helps you. I can also measure the beam thickness if needed, we still have a leftover cross-section. It's just important to me that I don't end up one floor lower if it turns out to be too much load. Maybe you can help me with that.

Best regards and thanks in advance

Your Roady

First of all, please add punctuation! I gave up after 1/3 of the text.

First of all, please put in punctuation marks! I gave up after one third of the text.

Sorry that I have a spelling weakness.....

My biggest problem, and this is where I want to ask you for advice, is the floor in the attic. It is only constructed in such a way that there is insulation between the beams and then thick chipboards are supposed to form the floor. I find that in the attic this is insufficient because the floor has waves in it or is uneven.
My question is, can I put a leveling screed on these chipboards and then lay dry screed panels on top to then lay laminate flooring over it??

Or would that be too much weight? Unfortunately, I only have photos where you can see the wooden beams from below, with the chipboards installed on top before the insulation was added in the space in between. Maybe that helps you, but if needed I can also measure the beam thickness; I still have a leftover section. It is just important to me that I don’t end up a floor down if it turns out to be too much load. Maybe you can help me with that.

I have now filtered out the text that this is mainly about.

My question is, can I put a leveling compound on these chipboards and then lay dry screed boards on top of that to then lay laminate over it??

Apply leveling compound and then the floor covering. You’re not using the same thickness as the screed on the ground floor. It is only 4-5mm thick at most. In my opinion, dry screed boards are not necessarily required.

Apply leveling compound and then the flooring. You don’t take the same thickness as the screed on the ground floor. It is only 4-5mm thick at most. Dry screed panels are not necessarily required in my opinion

I have indeed already considered leveling compound as well. I just didn’t look into it because I don’t know if I would then have sufficient impact sound insulation, and as for the dry screed panels, I would have chosen ones with something underneath on the bottom in the hope that you then hear fewer footsteps from above.