Need som advice on my upcoming Home Cinema

Rickardbravo

Novice Member
Hello
I would need some advice on my upcoming cinema.

We have just built our house and have a room we will make a cinema in.

I was going to soundproof the room a bit. I thought I would build an extra wall on two of the walls. With an air gap.

Now to the question. The walls look like this.

(seen from the outside of the room.)

____________
plasterboard
OSB
rockwall insulation
OSB
plasterboard
____________
Homecinema

How do I build the wall.

Option A)

____________
plasterboard
OSB
rockwall insulation
OSB
plasterboard
Air gap 2cm
Rockwall insulation
plasterboard
plasterboard
____________
Homecinema

or

Option B)

____________
plasterboard
OSB
rockwall insulation
Air gap 2cm
Rockwall insulation
plasterboard
plasterboard
____________
Homecinema

In alternative B, I remove the OSB and the plasterboard closest to the cinema before I build on the new wall with an air gap.

I may not even need to build an extra wall? What do you think ?

Just for the info, planning to install a 7.2.4 . bafflewall in the front.

Best regards
Rickard
 

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Triggaaar

Distinguished Member
Hello

We have just built our house and have a room we will make a cinema in.
Fantastic. What are the room dimensions?

I was going to soundproof the room a bit. I thought I would build an extra wall on two of the walls. With an air gap.
Why only on 2 walls? Is this a ground floor room, and what's above the room?


Now to the question. The walls look like this.

(seen from the outside of the room.)
I've read your options. The problem with option A is that you have an unnecessary triple leaf affect. It's just better to have double layers of boarding each side. The gap in the middle needs to be between the studs. In fact, you don't even need a 2cm gap, you can have the studs interleaved, so one stud supports one side of the wall, and the next supports the other, and repeat. As long as they don't touch anywhere.


If you provide more details, I can help more:
Room size, how many seats you're thinking, what your budget is, where and why you need to soundproof, etc
 

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