Problem of sound insulation in terraced single-family house

  • Erstellt am 2017-08-09 10:20:21

Hoodies

2017-08-09 10:20:21
  • #1
Good morning,

In July 2015, we bought a semi-detached house through a developer. Each house has its own walls, and there is fire protection wool between the houses. There is no basement.

We moved in at the end of 2016. We quickly realized that we could hear the construction work from the neighboring house very clearly. This was also confirmed by other neighbors who visited us and also live in the new terraced houses and did not hear this from their neighbors.

After the work in the neighboring house was completed and the neighbors had moved in, we could clearly hear the neighbors’ footsteps while walking, the running children, sometimes even voices, toilet flushing, and the closing of room doors from the neighboring house. Walking noises from the neighbors in our house sound like muffled thuds, as if someone were stomping on our heads. On the ground floor, we barely hear anything from the neighbors. However, as soon as they are on the 1st or 2nd floor, it rumbles. The immediate neighbors have, of course, already listened and were (in my opinion at least) also “shocked.” They also hear us “tiptoeing,” but we are very quiet, have no children yet, and currently use only about half the house, mainly the ground floor. We perceive the rumbling as a disturbance / actually already noise pollution because we can’t simply “turn off” this problem.

After consulting our lawyer, we then commissioned an expert for sound insulation. Without knowledge of the house’s structural engineering and only as laymen, we were to determine positions for sound insulation measurements (“using a floor hammer and loudspeaker”) in our house and the neighbors’ house. Unfortunately, these values were not conclusive enough, so the developer has to take action.

After consulting an engineer (for overall structural planning), who accompanied the construction on the sidelines, the problem can only come from a sound bridge. He suspects the floors, which were poured over precast ceilings.

Selling the house after such a short time would cost us an incredible amount. Actually, selling is not an option either, as we have invested so much energy, time, and love into the house, and we generally feel very comfortable in the area.

Now we are considering having the houses cut with this diamond wire technique to separate a sound bridge. We simply don’t know what else to do. Maybe there is someone here who has heard of such a problem. Or someone who can give us tips for investigating the cause.

We hope for help…

THANK YOU in advance and best regards
 

HilfeHilfe

2017-08-09 10:46:14
  • #2
oh dear
 

Teichler

2017-08-09 12:18:23
  • #3
Hi,

What about protection against moisture of the floor slab, etc., for example?

Phew ...
 

77.willo

2017-08-09 12:31:49
  • #4
Would a problem ultimately be measured? Often, people get extremely caught up in something like this and then cannot get back on track even through structural measures. Some of your phrases rather point to this direction for me...
 

Bieber0815

2017-08-09 13:09:48
  • #5
When was the acceptance of the house? Did you report the defect? What does the [Bauträger] say?
 

Steven

2017-08-09 13:25:03
  • #6
Hello Hoodies

there is definitely a sound bridge present.
Did you possibly take photos during construction? With a [Filigrandecke], concrete can quickly reach the other house tiles.
Do the neighbors have the same problem? It should be like that. Because if the sound is coming to you, it also goes to them.
I would talk to them and try to find out where the sound is most clearly heard.

Steven
 

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