Own contribution: Determination of residual moisture

The idea now is that the company completes the tile work entirely, including measuring the residual moisture. We would only want to lay the laminate on top (and the impact sound insulation).

Hello,

as my predecessors have already written, I would NEVER want to determine the residual moisture myself, as a mistake here can lead to considerable consequential costs.

The steps you listed are potentially critical for you, because the contractor is off the hook if the screed settles, continues to crack, the floor becomes uneven, or if it is just moist enough for the floor coverings to wave or detach.

Whether a screed has many or few (preferably none) cracks depends less on whether it is a new or old house, but rather on whether the work was done carefully and with good materials.

May I be curious and ask which company you are building with?

Regards,

Dirk

Sure, D&Z Construction (see also specific company feedback)

The problem is not only the damage on the cost side. Just think about what removing the tiles, sanding the screed, and re-laying them means for daily life. The mess is barely bearable. You end up living on a construction site for weeks if you cannot or do not want to move into a hotel. For these reasons alone, you should not cut corners with the tiles. The CM measurement requires special equipment. It must not only be available but also properly operated. I would definitely not save here, especially if it is an anhydrite screed.

We will probably have everything done by D&Z now, since we bought it as a turnkey project. If we have to lay the floor ourselves, we would have to buy the materials ourselves. After roughly calculating the hardware store prices including waste, we would save a mid three-digit amount. Compared to the sums you deal with in house construction, that is negligible and - in my opinion - not worth the risk.