ᐅ Sound Insulation – House Very Noisy Between Rooms!

Created on: 31 Jan 2021 20:06
K
KlingeFCK
Hello everyone,

we have purchased a house built in 1996, constructed with solid building methods. However, the upper floor is incredibly noisy. My daughter’s room is right next to our bedroom. She has a large gable in her room. When she simply plugs in a charging cable, it sounds as if it is happening in our bedroom. If she talks quietly, we can hear every single word. What can I do? What needs to be checked, and who or what type of company is the right contact for this? It is really very loud and driving us crazy.
K
KlingeFCK
1 Feb 2021 06:13
Here is a photo of the floor plan. This helps to better visualize the layout.

The ceiling structure is traditional:
Drywall, insulation, drywall, OSB panels (construction viewed from the room looking towards the attic)

Grundriss eines Hauses mit Flur, Bad, Schlafzimmer, Kinderzimmer, Arbeitszimmer; rote Beschriftung.
B
Bookstar
1 Feb 2021 08:49
I think it’s important to first analyze whether it only concerns the two rooms or the entire house/upper floor. An electrical outlet is a common cause; if you plug something in on the ground floor, you can hear it very loudly upstairs. Reason: hollow bricks! This initially surprised me as well, but it actually makes sense. You get somewhat used to it since it doesn’t happen very often 🙂

Otherwise, do you hear many noises through the roof from outside or only between rooms?
K
KlingeFCK
1 Feb 2021 10:27
Bookstar schrieb:

I think the first step should be to analyze whether it only concerns the two rooms or the entire house/upper floor. An electrical outlet is a classic example; if you plug something in on the ground floor, you can hear it very loudly on the upper floor. Reason: hollow bricks! This shocked me at first, too. But it kind of makes sense. You get somewhat used to it, since it rarely happens 🙂

Otherwise, do you also hear many noises from outside through the roof, or only from room to room?

Only from room to room. From outside everything sounds pretty normal.
Nida35a1 Feb 2021 10:52
Are the interior walls drywall or solid? Try knocking on them.
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Wintersonne
1 Feb 2021 12:59
Are all interior walls only 11.5 cm (4.5 inches) thick? Minus the channels in some places?
We were told that the walls should be at least 17.5 cm (7 inches) thick, and then it also depends on the bulk density.
K
KlingeFCK
1 Feb 2021 13:42
Nida35a schrieb:

Are the interior walls drywall or solid? Knock on them to check.

Solid, but probably only 11cm (4.3 inches) thick blocks, and most likely aerated concrete.