ᐅ Soundproofing Drywall Construction: Special Case Staircase
Created on: 22 Apr 2021 16:06
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Stefan001
In our house construction, we got a locally cast spiral staircase. Unlike usual designs, our staircase runs through two rooms. The lower part is located in the hallway, while the upper part runs through the utility room. On the plans, this all looked very simple and practical. Now, after the staircase has been completed, the question has arisen about exactly how the wall between the two rooms should be positioned. Currently, it is still possible to see from the hallway into the utility room.
The original idea was to build a wall exactly between the two rooms. This way, there would be a space on the (lower) hallway side for shoes, and on the higher utility room side a space for the washing machine.
Now there is a third opening that nobody had considered: the upper part of the staircase is also open towards the hallway.
According to our builder, the upper part cannot be (or can only be with great effort) enclosed with masonry, so it is to be constructed as drywall. I don’t have a problem with this in principle, but sound insulation is important to me because I don’t want the noise from the utility room to be heard on the upper floor.
What measures can be taken in drywall construction to achieve good sound insulation? Is a simple double layer of drywall boards sufficient, or should additional steps be taken?
The rest of the utility room is also "only" built with 11mm (half-inch) aerated concrete blocks. However, this never played a significant role in my mind since I had considered the staircase itself as a form of separation. I am not concerned about the ground floor since no noise-critical activities take place nearby there.
The original idea was to build a wall exactly between the two rooms. This way, there would be a space on the (lower) hallway side for shoes, and on the higher utility room side a space for the washing machine.
Now there is a third opening that nobody had considered: the upper part of the staircase is also open towards the hallway.
According to our builder, the upper part cannot be (or can only be with great effort) enclosed with masonry, so it is to be constructed as drywall. I don’t have a problem with this in principle, but sound insulation is important to me because I don’t want the noise from the utility room to be heard on the upper floor.
What measures can be taken in drywall construction to achieve good sound insulation? Is a simple double layer of drywall boards sufficient, or should additional steps be taken?
The rest of the utility room is also "only" built with 11mm (half-inch) aerated concrete blocks. However, this never played a significant role in my mind since I had considered the staircase itself as a form of separation. I am not concerned about the ground floor since no noise-critical activities take place nearby there.
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Stefan00125 Apr 2021 12:4211ant schrieb:
Show as an example of a "please-don’t-try-this-at-home" kind of thing how the masterstroke looks in the floor plan. As always, it’s the details that aren’t drawn which you don’t think about.
hanse987 schrieb:
The drywall construction doesn’t need to deliver outstanding insulation either, since the 11.5 cm (4.5 inch) aerated concrete wall isn’t exactly the best solution for soundproofing. Exactly, no magic should be expected.
I will suggest a double layer of the acoustic boards mentioned above. The connection to the rest of the wall and the staircase is probably another important point. I’m not quite clear on that yet.
But I haven’t spoken to the drywall installer yet.