Building dryer - a must?

Greetings everyone,
our screed has now been in for 4 1/2 weeks.
Because the supplier did not lay the supply lines into the house due to illness,
we have only been heating since last Friday (so eight days so far) with a "HotBoy" connected via bypass into the heating circuit with a 22kV instantaneous water heater - you can practically see the euros flying away.
But now it is around 20°C in the house and I hope the chimney sweep will approve the gas boiler on Monday/Tuesday and we can switch to normal heating operation.

We are currently ventilating 3 times daily (morning & evening me, midday my wife).

Something is happening - you can see it at the fogged-up windows (open), what is all condensing or now escaping.

I am curious whether we can lay floor coverings in KW1o2 /2014.

How is it behaving in the garage? The protective film in front of it was badly shredded after a week due to storm - but for over three weeks now there have been no dark shadows on it anymore.

My plan here is: lay battens and then place moving boxes/packed new furniture on them so that the air can circulate - or is that rather counterproductive with the residual moisture?

Regards
Chris

Hello everyone,

the screed has now been down for six weeks and effectively heated (due to illness-related delay with the utility provider for the house connections) only for about four weeks (no underfloor heating).

I just find it a bit insufficient that the heating is only producing 19°C in the house – shouldn't it be significantly warmer?
We are currently ventilating twice daily over the holidays.

I have also placed chemical dehumidifiers (up to 80cbm) in each of the upper rooms and have removed about four liters of water this way.
I am considering renting an electric dehumidifier, something in the size range of an "outdoor backpack" or "refrigerator size."

Today I bought a simple residual moisture meter at the hardware store.
It shows 0.5% for the screed in the basement, 0.6% on the ground floor, and 0.7% on the upper floor.

As far as I understand, this is only to be seen as an indication anyway, and we only get an effective measurement if a "core drilling" is done at several points in the screed and the drill core is analyzed, correct?

Regards
Chris

Rent a dehumidifier, it removes about 40 liters per day. A hygrometer can show you the humidity, it is included with the stationary weather stations.

As far as I understand, this is only to be seen as an indication anyway, and we only get an effective measurement if a "core drilling" is done at several points in the screed and the core sample is analyzed, correct?

Regards
Chris

That is correct. In the case of underfloor heating, these spots are marked in advance. There is a small rod in them to prevent drilling into a pipe.

From my own experience, I can only recommend renting and setting up (several) drying units at this time of year. The screed heating program of your underfloor heating goes through several phases, so it gets even warmer (you will feel like you are standing in a sauna). A hygrometer is also a good purchase; according to our building expert, you should always try to keep the relative humidity below 50% if possible when ventilating.

I don't quite understand. You have now heated your screed for 4 weeks with a heating program, right? What do you mean now by the 19 degrees?