Which interior wall material/wall thickness provides good sound insulation?

Hello,


Your shell builder will hardly make you this suggestion; after all, he wants to earn money. A lightweight wall belongs to the drywall trade.

Rhenish regards

Yes, I thought that afterwards as well
But maybe he is honest (serious) or he will simply make me a good offer for a soundproofing brick!

Can one generally say how the sound insulation is for a hollow brick with 11.5 cm? Has anyone installed such a brick?

The hollow brick planned by the shell builder so far has the following values:
Bulk density class 0.80 kg/dm³
Strength class 8
Design value of thermal conductivity 0.39 W/(mK)
Basic value of allowable compressive stress 1.4 MN/m²

But nothing is stated about the sound insulation rating?!

Thanks and best regards,
Stefan

Hello Stefan,

But there is no mention of the sound insulation rating?!

You can find this information on the manufacturers' websites; freely accessible. For your stone, the sound insulation rating is 40 R' [dB]w,R, finished wall thickness 14.5 cm (after plastering).

Rhenish greetings

Hello Stefan,

You can find this information on the manufacturers' websites; freely accessible. For your stone, the sound insulation value is 40 R' [dB]w,R, finished wall thickness 14.5 cm (after plastering).

Rhenish regards

Ahh - many thanks for the info, top

Hi, I am now asking a similar question again: How does it behave with the different material mix if I install 42.5 cm Liapor walls on the outside and walls inside with a significantly higher concrete content or even (purely for aesthetic reasons) a 20 cm wall made of reinforced concrete? Do I then have the same problem of different coefficients of thermal expansion, etc., as with porous bricks & aerated concrete?

Hello, I want to dig up the thread from the past again because I am also interested in the material mix. For exterior walls, I am being offered aerated concrete, Ytong, in the quotes. According to the quotes, interior walls are supposed to be made of sand-lime brick. Is this mix bad? What wall thickness is recommended for the interior walls? For load-bearing walls, 17.5 cm and for non-load-bearing, 11.5 cm sand-lime brick is being offered. Is the sound insulation sufficient at the specified wall thicknesses?

So we built entirely with KS, the soundproofing is simply amazing. Noise only penetrates outside practically through the windows; if these are closed and the shutters are down, you can turn the music inside up to concert volume and hardly hear anything outside. Inside the house, for example, you can hardly hear anything upstairs if there is party volume in the living room. Otherwise, it is also important not to install any sound bridges. The best stone or insulation is useless if you install sound bridges...