How do I lay different floor coverings at the same height?

Hello everyone,

In my new build, the screed was laid recently, but I forgot that I have different floor levels with different heights. The screed is at the same height in every room - side note: with underfloor heating. Now my problem: Upstairs there are 3 bedrooms and a bathroom, all accessible from the hallway. Tiles (height with adhesive about 15mm) will be installed in the hallway and bathroom. The 3 bedrooms are to be covered with click vinyl, whereby a well-suited vinyl covering (including impact sound insulation) has a height of only 6.5mm.

Thus, I would always have a step of about 8.5mm. How can I avoid no step or at least only have a difference of 1-2mm?
- adding additional impact sound insulation underneath?
- using a higher vinyl floor? (but without losing heating efficiency with underfloor heating)?
- raising with leveling compound?
What is the most sensible or is there a better solution?

Thanks in advance for the info.

- add additional impact sound insulation underneath?

No

- use higher vinyl flooring? (but without losing heat with underfloor heating)?

No

- raise with leveling compound?

You can do that, but then you are fixed to vinyl. If you don't like it and want tiles/parquet, you have the same problem again.

what is the most reasonable or is there a better solution?

Lay parquet. Similar price possible as vinyl, approximately the height of tile coverings.

Morning,
just use a transition strip.
You won’t even notice the 8.5 mm in reality.
Cheers, olli

Hello questioner,
Usually, the height of the screeds is specified to the screed layer directly during planning (and it is a new building).
However, there are reasons why this is not done, for example if the client wants to carry out the flooring installation independently. In this case, you are "missing" about 8 mm in three rooms; these three rooms are lower than the corridor.
The problem can be solved unprofessionally, but also following professional rules (which I recommend):
Solution 1: The screed surfaces are ground, vacuumed, primed, and evenly filled with a 7 mm thick layer of filler.
Solution 2: The screed surfaces are ground, vacuumed, primed, and evenly filled with a 2 mm thick layer, ramped up to an additional 5 mm over about 40 cm length in front of the doors.
Under no circumstances use additional underlays, as otherwise, with click systems, there is a risk that the locking of the floor elements will open at various points when walked upon.
This purely factual remark, related to an undesirable result, means that ultimately all elements will lie loose individually – not a nice sight.

The right advice is to choose parquet. Everything else is nonsense.

@ "Bookstar": With all due respect - the questioner described a problem regarding depressions of approximately 8mm in 3 rooms adjoining the corridor. Aside from the fact that parquet could fundamentally be an approach to flooring solutions, the questioner would certainly not want a step height difference of 14mm - 8mm = 6mm (instead of a depression) with 14mm thick (i.e. standard) parquet. That means: through a parquet solution, (to put it simply) "the devil would be driven out with Beelzebub." Formulated objectively: that would not be a real solution! The parquet suggestion would actually mean only: "One replaces an 8mm depression with a 6mm higher usable level."
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KlaRa