Sound insulation VDI Guideline 4100 & DIN 4109 in prefabricated house construction

What does that mean? I am always happy when my clients build certified houses, but I am not familiar with the details.

The "sociocultural functional quality" is one of the so-called topic areas of the certification and consists of several parts in the DGNB system, such as: - thermal comfort - indoor air quality - visual comfort (daylight availability, color rendering, solar exposure) - user influence (on the indoor climate: ventilation and ease of use) - outdoor space qualities - sense of security and protection against assaults etc.

In other certifications/ approaches, sound insulation is included in this topic area. In the DGNB, however, sound insulation is classified under the topic area "technical functional quality."

For further questions regarding individual topic areas, it is best to contact DGNB directly, as it is, as mentioned, a bible... but I find it interesting (as a layperson) – although it is probably relatively useless for my project :-/ ...as described above.

My girlfriend has a Rensch house which I find better than our unfilled brick house ... so there are also differences there ...
Dimensions are great, use calcium silicate brick or filled Poroton.

Attention, now it’s getting curious:

Would it be conceivable to "upgrade" the interior of a particularly "sensitive area" such as adjoining living rooms with a calcium silicate brick (instead of Knauf Diamant boards)?
Between the living rooms there are two walls (one in each semi-detached house) and the "party wall," but only "in case of emergency": is this doable or complete nonsense?
Sure, you lose a bit of "living space" because the wall gets thicker, but otherwise?

The "noise" or sound level of my own child is actually pretty irrelevant to me (even in the home office), I mean, (foolishly said) I shouldn’t have had any if I couldn’t handle it (if necessary I currently use headphones for Skype and that’s it).
That might possibly change during puberty, but there is at least a west-facing basement as a "retreat" if needed.

Much more important to me is the "decoupling" from the neighbor. I don’t want to disturb him (after all, he then pays rent!) and in the worst case I don’t want to end up like my father, whom the "stupid sports vibrating plate" of the neighbor bothers in the basement or when the neighbor runs down the stairs quickly... God knows how often both happen.

Anyway, I’m glad there is a certain interest in the forum about soundproofing / standards / technical norms.
Who knows who else will end up here and be happy that we have already "discussed this in depth."

There is one important point I haven’t researched yet: the exact composition of the party wall (I don’t want to drive the provider completely crazy), I think they first need to recover a bit.

Well, when the kids are romping upstairs, you can hear rattling downstairs. I had expected a bit more from one of the top manufacturers. Luckily, we are not that sensitive, but it is noticeable. However, we also have KfW 70, which means 34cm walls; currently, I believe only the 40cm walls are available. And we hear low frequencies in the house, for example, when a city bus passes by, we clearly hear the humming, fortunately only every 30 minutes, but from 6 a.m. onwards I wake up from it, though my wife, for example, does not.

Thanks! Such a bus is of course also a penetrating source of noise. In KfW55, the walls are 32cm. KfW40 did not pay off, but at the time of selection, sound was not a factor. However, we have a "soundproof ceiling" and underfloor heating. So far, I was only able to walk through the provided house once; on the upper floor and attic, the concrete screed elements were already installed – they feel very massive, weighing about 900 kg per element on average. I jumped a bit on them and didn’t notice any vibrations. But well, everyday life will show.

So far, we have chosen standard doors from Prüm (except for the utility room – there, sound insulation class 3 + soundproof walls) and are considering replacing one or two doors with sound insulation class 2. Of course, it doesn’t help if the noise passes through the walls anyway.

Concrete screed elements

Make sure that the elements do not come into contact and that no dirt gets in between; in our upstairs hallway, they cracked. An employee removed the baseboards and sawed along the wall, since then it has been quiet. We also have underfloor heating with controlled residential ventilation; here, one with moisture recovery is recommended.

The service is excellent at Schwörerhaus. I think many could take a leaf out of their book.

If you have questions, feel free to send a private message.

Great, many thanks!!

Much more important to me personally is the "decoupling" from the neighbor.

Perfect solution for you. Build a detached house and you won't have to senselessly worry about it anymore.