Can I do a general floating floor on joists and then install partitions?

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I'm going to do a floating floor on the lagging. The top-to-bottom pile is about this:

— quartz vinyl/ laminate + subfloor/ linoleum

— plywood in two layers

— mineral wool

— joists 50x50

— vibrofix

— Floor joists (I don't know the exact size yet)

— Construction slag (I won't remove it)

Partitions want to do from gypsum board:

— 50 mm profile

— acousticwool

— 2 layers of plasterboard 12.5 mm

The main question is this – is it acceptable (whether good) to do the total floor in two rooms and have him put a partition? What are the disadvantages of this approach?



Are you asking about soundproofing or construction?

In terms of structure – when you install such a partition wall, it must be reinforced at the base with an additional beam and have a scaffolding. In terms of soundproofing, the floors must be separated, otherwise vibration will be transmitted not only through the floor but also through the wall – double vibration.

  • For structural purposes. As far as my reasoning goes, the partition must rest, if not on the subfloor, then on the load-bearing beams. The partition is planned along the load-bearing beams and the probability that it can get between the beams is not zero – then only option on the subfloor. The old floor has not yet been removed. About the scaffolding understood, about the additional beam – no. Beams will be across the partition and have the size of 50x50, a step of 300-400.
  • Is the main ceiling in the house beams or reinforced concrete?
  • Wooden beams.

It is necessary to put it on plywood, so that there would be no gaps between the floor and the partition in the case of changes in humidity of the load-bearing beams. It turns out: beams, purlins (50x50 joists), two layers of plywood, partition. If made of profiles, then the wooden scaffolding is not needed, of course.

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