Sound proofing a home bar

[Smudge]

Hi there I'm new to the forum but would like a little advice please.

I'm currently in the process of designing a purpose built bar at the rear of my garden. The problem I have is the neighbours and vice versa. So I want to sound proof it. I was going to use brick to construct it and it will have a concrete floor. After that I'm not really sure. I thought about maybe fastening 2x4's to the wall and using genie clips etc. then 2 layers of drywall with green glue in between. Would this be ok?

The ceiling is kinda concerning me though. I thought about doin the same as the walls(- the bricks) but I don't know if this will be enough?

Also the floor will be concrete so what would be the best thing to use over the top?

Thanks a lot and a really cool forum.

Smudge

[Randy S]

Yes that will work for a simple system, I would use cement board 2 layers for the roof, make sure you insulate the cavities with cotton batting and we do not promote genie clips, we promote our isomax clips. Better performing clips.

http://www.supersoundproofingsales.com/Channel-_-Sound-Clips/products/15/

Don't worry about the floor at this time until you've had a chance to assess its value.

[Smudge]

Ok thanks for the advice I'll use them instead. Would screwing the 2 x4's directly to the brickwork be ok? or would it be better if the I fastened them off the brickwork? Also what insulation would you suggest? I thought normal insulation was pointless due to it having sweet fa mass.

Anyway thanks for giving this post your attention.

Smudge

[Randy S]

You can mount the clips directly to the brickwork..or if you want to save some money build out a new 2x4 wall that does not touch the brickwork and you can eliminate the clips..this is known as room in a room construction.

For insulation we prefer cotton fiber insulation, if not available than use mineral wool.

[Smudge]

Thanks randy

Another quick question, when building the walls off the brick walls would I need to board both sides or just the inside of the room? Also do you have any info on what to do around the door and windows? Cos if I'm building the walls of the brick walls I'm goin to have to join the walls in those locations. Wouldn't this defeat the object?

[Randy S]

If your not doing the whole room than yes it does allow flanking issues to occur, so therefore if your only doing 1 or 2 wall walls use the clips and channel.
The only time you dont get flanking problems is when your treating all six sides of the box...but keep in mind that flanking noise is at a lessor value normally due to energy loss.

[Randy S]

we also have special clips for this type of construction that can not be found on our website.. you must call in to obtain.

[Randy S]

keep in mind when you float you will leave a 1/4" gap around the perimeter of the entire wall which is filled with caulk and not to mud and tape to avoid shorting the wall out.