Auralex Sheetblock

[stephen_]

Been looking into this product it seems to be the stuff to have.

My situation is that i am building an extension starting march this year. One of the rooms 5m x 2.75m will be used as my HC come sitting room. I want to soundproof it as much as possible as the main bedroom will be above it.

Going on my room size how many rolls do you reckon i would need ?

Or do you have any other ideas ?

Thanks

Stephen

http://www.dolphinmusic.co.uk/page/s...roduct_id/2805

[mattym]

sheetblock is another form of MLV, not the most efficient product you can use, its heavy and its expensive, 120sqft roll costs 4 times as much as 192sqft of Green Glue, there are cheaper MLV on the market though

how many rooms in total are you looking to treat or just the one?

[stephen_]

Originally Posted by mattym

sheetblock is another form of MLV, not the most efficient product you can use, its heavy and its expensive, 120sqft roll costs 4 times as much as 192sqft of Green Glue, there are cheaper MLV on the market though

how many rooms in total are you looking to treat or just the one?

I am looking to treat just the one room with this product.

One of the bedrooms (teenage daughter) will be sealed with some kind of acoustic sealant to stop any noise spillage along with heavy underlay & heavy carpet.

What do you recommend on the MLV route ??

I was hoping to use green glue as well, doubling up on plasterboard with rockwool.

[pemberto]

Stephen,

Take a look at Custom Audio Designs site, it has loads of good information about sound proofing. http://www.customaudiodesigns.co.uk/help.htm

[mattym]

I would save money and go with doubling up the green glue and plasterboard(with rockwool in the walls), its well tested, works well. Seal the room your treating and it should be fine, if your building new studs then flanking noise will be reduced to a minimum.

Quantities, well a Sheet of plasterboard 8'x4' takes 2 tubes of Green, so you can work out your board and green content from that

www.greengluecompany.com for much information on greenglue and its use.

[A Sound Basis]

If it were my room I'd install a floating ceiling with high density acoustic mineral wool between the joists then mount resilient bars. Finally I'd attach a double layer of acoustic plasterboard with sound barrier mats sandwiched between them.

This solution works, it adds mass and decouples the ceiling and the new ceiling and does NOT rely on any snake oil or magic beans.

If you have stud walling you will also need to treat flanking sound by treating the walls. Again use acoustic mineral wool between the studs then resilient bars with a layer of sound barrier mat sandwiched between acoustic plasterboard.

With all these measures more mass and decoupling will mean more noise reduction. Boring and simple, but true.

Hope this helps.

[Gary Lightfoot]

I wouldn't use resilient bar if you want to use the room for audio playback rather than to just soundproof it. RB can turn a surface into a diaphragmic absorber and reduce the rooms bass with very little chance of getting it back (unless you remove the RB). It's good for soundproofing but an unknown for how it would effect the room for audio playback.

Gary