We are planning to convert an existing room into a bedroom. The room borders the kitchen and currently has a 95-100mm hollow wall with an OSB board on either side of the wooden stud.
I would like to soundproof the wall as much as possible without making it thicker.
Double offset studs might be overkill.
I was thinking of just opening up the wall from one side and keeping the studs and the OSB board closest to the kitchen.
I'm considering gluing and caulking a plasterboard to the OSB board so it sits BETWEEN the studs. Then about 30mm of insulation also between the studs, and then finishing with an OSB and double plasterboard. Total 93mm.
What do you think about the idea of a glued plasterboard placed between the studs? Does it have any effect? Or does it just make it more complicated/expensive?
The alternative I'm considering is to just put 45mm insulation (stone wool) between the studs, followed by an OSB and double plasterboard.
Do you have any other suggestions?
Then we also have a poorly insulated door, but we'll tackle that afterwards.
Updating myself as I had some misconceptions.
The wall is approximately 100mm (I made drill holes) and consists of two OSB sheets about 11mm each and then some kind of stud. The question is, what kind of stud is it? I assumed it was 45mm, but then the wall would be only 67mm. And with a 69mm stud, the wall should be 91mm.
What do you think? They probably wouldn't have used 45mm studs with offset without insulation or any other sound-dampening construction/material.
Replacing the stud frame feels like too big a job, so there might not be many options left other than making the wall 2x13mm thicker than it is now. I can easily add more insulation, of course.
With insulation and finished with double drywall, it should turn out well. Be careful around the ceiling, as it is usually the easiest path for sound to travel.
Osb is usually 11mm but does the wall only have osb as cladding on both sides now?
I had 13mm plasterboard, 45mm stud, and 13mm plasterboard. There was a big difference in throwing in 45mm insulation and then double plasterboard on the side I tore down. Plasterboard has good soundproofing properties.
Silentswede...google it. There you have everything for sound
Used their products yourself? Would that be their damping boards or damping mat then? They are made to go in the walls?
Felt that the price was a bit high, and I'm a bit concerned if they emit toxins over time. But then, maybe OSB isn't the best choice either anyway.
Used their products yourself? Would it be their soundproof panels or soundproof mats in that case? Are they made for use in walls?
I felt the price was a bit high, and I'm a bit concerned about whether they emit toxins over time. But then again, OSB might not be the best choice either
No, not yet. But I thought the selection was good and I will look for alternatives for the expensive items now that we are going to soundproof our newly built stone house, which is anything but quiet. It echoes a lot here and the kids need some soundproofing too.
Used their products yourself? Would in that case be their dampening boards or dampening mats. Are they made to be in the walls?
Felt that the price went up a bit there, then I'm a little concerned about whether they release toxins over time. But maybe OSB isn't the best choice either in that case
Yes, I realized that we actually bought sealing strips for doors there. We have solid black doors, and they came without a strip, a mistake in the order. It couldn't be retrofitted. Tried all the types available on the market, but none worked because the space where it would sit was too tight. But with their black 2mm strip, it was perfect. The doors feel like a safe door now when you close them. And no more rattling in the house when someone closes a door.
I set the kitchen fan to max, the water from the tap is running full blast, and my wife is rattling in the cutlery drawer while I open and close the bedroom door.
It ended up being 45mm rock wool, OSB, double plasterboard (staggered joints) on the bedroom side, sealed joints along the ceiling, floor, and corners with latex sealant. Also, a 35db sound-rated door, filled and sealed (on the bedroom side).
It turned out much, much better than we hoped for. And there's not a single plasterboard layer on the kitchen side, just an OSB...
Before, we could hear everything! The wall/door made hardly any difference at all.
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DanielPinjegård said: