ᐅ Wall thickness for children’s bedroom / bathroom

Created on: 28 Oct 2015 23:25
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merlin83
Good evening,

has anyone had experience with how wall thickness affects sound transmission?

Currently, the shower is planned directly adjacent to the wall of the children's room. In the children's room, a wardrobe is planned along the wall facing the bathroom (a desk is drawn here for now; the children's room window will be moved so the wardrobe fits against the wall). At the moment, a 17.5cm (7 inch) thick masonry wall is planned. If a 10cm (4 inch) masonry wall would be sufficient without making the children's room too noisy, we could reallocate those 7.5cm (3 inch) to increase the shower size. Any experiences?
B
Bauexperte
29 Oct 2015 10:03
Sebastian79 schrieb:

Regarding lightweight partition walls: I’m speaking from experience, not just from reading. We had a double-layered, DOUBLE lightweight partition wall separating our living room from the neighboring apartment.
A party wall or partition wall between apartments is not normally constructed as a lightweight partition; either the architect overlooked this, or the apartments were added later without proper inspection.

Edit: I am quite certain that the prefabricated house industry would not fully agree with your "experience" as a standard for all types of lightweight construction.

Best regards, Bauexperte
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Sebastian79
29 Oct 2015 10:12
No, that was planned that way and is completely fine—I know this because we had the chance to discuss it in detail with the builder over a longer period.

But I agree with you: that’s just not acceptable...

Of course, they don’t have to agree with me—and they don’t need to. Just because an industry has been doing something a certain way for a long time doesn’t mean it is automatically right.

I’m not trying to convert anyone—this was about sound insulation and wall thickness, which is not a trivial matter and can’t simply be solved by making the walls thicker.
N
nightdancer
29 Oct 2015 18:13
There are significant differences in drywall construction; if it is not done properly, soundproofing will fail.

High-quality drywall partitions can achieve up to 72 dB, which cannot be matched even remotely by calcium silicate blocks.
Y
ypg
29 Oct 2015 20:37
No idea at the moment how many decibels our washing machine produces – I only know that with the door closed in the upper floor, which is built with lightweight construction and single-layer drywall, we simply can’t hear it!

And we’re not hard of hearing.
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Sebastian79
29 Oct 2015 20:40
It then naturally has significance.
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Bauexperte
29 Oct 2015 22:35
Sebastian79 schrieb:
Of course, that carries some weight

Now you’re acting strange... Yvonne’s answer (her own experience) has just as much or as little weight as yours (your own experience) from a few replies earlier.

Regards, Bauexperte