Soundproofing with a wooden beam ceiling

Sound insulation for ceilings

Note that there are different types of ceilings and that they differ with each other Soundproofing must be provided:

• Solid ceilings usually have a very good sound insulation simply because of their larger mass. Floating screed with additional edge insulation strips usually ensures adequate sound insulation.
• In this way, you can often only inadequately insulate wooden beam ceilings against noise - at least additional measures must be taken to ensure a greater mass of the ceiling.

Construction of wooden beam ceilings

Depending on how your wood joist ceiling is constructed, you will need to set up the soundproofing. Every measure described improves the sound insulation, but this does not mean that you achieve sufficient sound insulation with it.

• The simplest wooden ceiling consists of beams that are completely uncovered from below, on which the floor of the storey above is applied. Here it is advisable to insert an intermediate floor between the beams of the wooden beam ceiling.
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• If the ceiling already has an intermediate floor, an additional ceiling that you attach to the joists can further improve the sound insulation.

Noise protection measures through decoupling and weighting

In principle, all decoupling measures are sensible noise protection, but some of the measures are only sensible in the context of a comprehensive renovation of the building:

1. You can place the upper ceiling shell on insulation strips instead of laying them directly on the wooden beams.
2. Hang the lower ceiling shell on spring rails so that it is no longer directly connected to the beams of the wooden joist ceiling.
3. Cover the floor with panels that are as heavy and rigid as possible.
4. Design the ceiling with heavy panels.
5. You can also weigh down the wooden joist ceiling with cavity fillings or with insulation boards that you push in.

The decoupling means that the sound does not move from the floor slab to the beams and from there to the ceiling can be transferred. The higher weight makes use of the fact that a large mass cannot be made to vibrate as easily as a small mass.

Possible noise protection measures for wooden ceilings

1. If you only want to insulate the upper ceiling slab, i.e. the floor, because you want the beams visible from below If you can't do without, first cover the floor with chipboard, which is screwed and glued have to. Glue concrete blocks to it and then insulation material. Complete the measure with a porous wooden board and asphalt screed. So you have combined all noise protection measures on the floor side.
2. If you can completely cover the wooden joist ceiling with sound insulation, it is advisable to attach flexible panels to the joists on the underside using spring clips. These panels are covered with fiber insulation on the top, and the beams are covered with it. Impact sound insulation panels, on which you place chipboard, are sufficient for the floor.