ᐅ Your experiences with soundproof drywall panels?

Hello!

I would like to know if anyone has experience working with soundproof drywall. How has it worked out for you? Is it really worth buying, meaning, does it make a noticeable difference compared to just using double layers of regular drywall?
I’m currently considering whether it’s worth investing in.

Yes, I have already worked with this; for our holiday home in Austria, I also used drywall with sound insulation. The advantage is that it saves a lot of time, especially since the finishing of the first layer is no longer necessary. The two layers of the board are also bonded with a special adhesive that provides additional sound insulation. Since the price difference is not very significant, I would say that it is worth it. One should not forget that a reduction of 10 dB corresponds to halving the perceived noise level, so I would definitely pay attention to every decibel that can be saved.

We wanted the bedrooms and children's rooms to have particularly good sound insulation, as they are all separated from the open living area by just a single door/wall. Our drywall installer then recommended using standard panels installed in three layers instead of the special soundproof panels. Normally, two layers would have been standard. However, the profiles used, the insulation, and the installation quality also make a significant difference.

For example, Knauf’s website offers a very clear overview of how much sound reduction different constructions provide.

Of course, the weakest point is always the most important. The wall won’t matter much if the door (e.g., hollow core) or the door frame (e.g., not properly foam-sealed) do not provide good insulation.

I will be able to share how it works for us in about a month, once we have (hopefully) moved in.

@ Compost heap: Which ones did you use there? And how exactly did you manage the triple use? Are there also wide aluminum profiles you can use, and what did you put between them, a specific adhesive?
@ Pakon: But those were special panels, right? Do you save time if they are double-layered right from the start? Are they heavier?

Hirscherlo schrieb:
@ Komposthaufen: Which ones did you use there? And how exactly did you create the triple function, are there such wide aluminum profiles available to use, and what did you put between them, a specific adhesive?

We built our walls according to the Knauf W113 metal stud wall system. Specifically, the simplest version with a sound insulation rating of 56 dB.

As far as I know, the panels are screwed onto the profiles. Just search for Knauf W113 online. You can find PDFs with detailed wall construction information.

At first, I thought this topic was about sloped ceilings. But here you are talking about regular interior walls? What thickness are these panels?