ᐅ Aerated concrete 42.5, thermal conductivity (lambda) 0.08 or 0.09 W/m·K

Lumpi_LE schrieb:

You are dissatisfied with your Poroton brick, but your statements are not universally applicable.
By the way, the filled Poroton bricks were developed because the unfilled ones from T8 onward resemble a butter biscuit more than a brick; the webs in the filled bricks are simply much more stable.

All building materials have their pros and cons. If one had such a poor property as you suggest, people would build only with calcium silicate blocks or concrete.

Soundproofing mainly depends on mass. Ytong performs poorly in this regard, but I could imagine that for impact sound it might even be better than unfilled bricks. However, I am not sure about that!

You can find many posts from dissatisfied homeowners about these bricks. There are also many complaints in my circle of acquaintances. I am not personally that unhappy, but overall I would choose filled bricks next time.

To those who also have aerated concrete interior walls: Which type of blocks did you use?

The differences in sound insulation values are quite significant.

Example for 175mm (7 inches) blocks:
Ytong PP 2-0.35 0.09 39.0 dB
Ytong PP 4-0.50 0.12 43.6 dB
Ytong PP 6-0.65 0.18 46.3 dB

By the way, Ytong has once again increased prices for 2020 by the usual 8-9%...

I received the white ones.