Insulation of the ground floor / if applicable, underfloor heating

So from the basement you can see that everything above the OK vault is currently 5.5 cm thick (floorboards, OSB, linoleum, laminate). How thick the vaults themselves are, I don’t know of course. However, I think we won’t have to sink any masses there. Under the middle of the caps I measure 2.09 m and under the middle of the bearing arches 1.92 m. At the supporting pillars, the arches start at a height of 1.82 m. The whole thing is built of bricks and grouted with mortar. How much you would then have to fill above the raw ceiling is of course questionable, but that’s roughly how you can estimate it. Dry screed boards, fill, etc. can then be adjusted to the desired final height. I think we will do a fill, as we have already had good experiences with that in the bathroom upstairs. In the basement, of course, there are building-physical requirements that we never had to consider elsewhere in the house. And that’s exactly where I have the greatest uncertainties. We now have a system that has been working for 100 years. Of course, I don’t want to build anything that later leads to condensation and mold.

Pagoni, I will take a look at the mentioned systems!

Thick wool carpets provide good insulation - that's why they were so popular for centuries.

Thick wool carpets insulate well - that's why they were so popular for centuries..

Eww carpets, no no, I'm out. We have children and animals.

In the living room we always have about 20-21° and on the floor it was last 15....

I am a typical representative of the freezing half of humanity. The last few weeks I have only survived with 2 blankets and a hot water bottle that my dear husband makes for me every evening. We urgently need to change something.

I have now spoken with neighbors who have the exact same house. They even installed underfloor heating 25 years ago, but with liquid screed. With a separate heating circuit in connection with a simple gas boiler. They are very satisfied and would do it again. I think I'll ask our heating engineer how complicated it would be. So the "rough installation" for it.

Please also consider the statics of the vault. If the beams previously rested on the walls, there was no load on the vault. If the new panels lie on the fill, load is applied to the vault.