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?

Answers

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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.
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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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