Leveling old wooden flooring with screed or wooden construction?

  • Erstellt am 2019-12-01 19:11:55

Saphyrox

2019-12-01 19:11:55
  • #1
Hello everyone,

at the moment we are converting the attic. The floor consists of old wooden boards and has a height difference of about 8-10 cm over a length of 10m. In addition, the floor gives way a little in some places. Currently, we are looking for the best way to level the floor. It is also important that good sound insulation downward is provided, as the whole thing is quite thin-walled.

The options currently are a screed, on which Fermacell boards are then laid, or a batten construction recommended to us by a carpenter. A wooden grid made of two battens laid on top of each other, each with 40x40 fields, is laid throughout the room. This is laid floating and leveled according to the room height. Under the support points of the grid, a kind of compression felt is supposed to be laid to minimize sound. A felt that slightly protrudes above the upper batten and on which the floor rests is also placed in the 40x40 fields. The carpenter is not very fond of the screed itself, precisely because of air/impact sound, as it is not decoupled from the floor.

Does anyone have experience with this type of floor leveling, and is the screed really so sound permeable?
 

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