Experience with Rockwool other than RW3 ? ?
Old 21st July 2010
  #1
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Experience with Rockwool other than RW3 ? ?

Hello,

I am in a place where I cannot easily order or obtain RW3 Rockwool.

However, the local builders' merchant is selling 50mm Flexi Rockwool at a good price.

It's this stuff here: http://guide.rockwool.co.uk/media/87...i%20secure.pdf

I need to treat an entire room, mostly the ceiling as it is very small.

Has anyone used this ?

Thank you

Last edited by ilovemusic; 21st July 2010 at 05:18 PM.. Reason: typo
Old 21st July 2010
  #2
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Quote:
Originally Posted by ilovemusic View Post
I am in a place where I cannot easily order or obtain RW3 Rockwool.

However, the local builders' merchant is selling 50mm Flexi Rockwool at a good price.
Have you looked at heating/airconditioning/ventilation/refrigeration suppliers? That is who carries RW3 and similar product. I could find no usefull data to judge the appropriateness of the product you linked.

Andre
Old 23rd July 2010
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Quote:
Originally Posted by avare View Post
Have you looked at heating/airconditioning/ventilation/refrigeration suppliers? That is who carries RW3 and similar product. I could find no usefull data to judge the appropriateness of the product you linked.

Andre

There is a chart on Page 4 of the linked document, and the data looks very similar to the RW3 absorption specs.

Are these numbers all that matters?
Old 23rd July 2010
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Quote:
Originally Posted by ilovemusic View Post
There is a chart on Page 4 of the linked document, and the data looks very similar to the RW3 absorption specs.

Are these numbers all that matters?
I missed that chart. Thanks. The product has minimal low end absorption. Acoustically those are the important things. After that comes price and ease of handling, support issues...

Andre
Old 26th July 2010
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Rigid

Old 27th July 2010
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Thanks DanDan and Andre !

I found a supplier selling RW5 now..

I would think that should be fine , even if the data differs a bit from RW3 , right ?
Old 28th July 2010
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Quote:
Originally Posted by ilovemusic View Post
Thanks DanDan and Andre !

I found a supplier selling RW5 now..

I would think that should be fine , even if the data differs a bit from RW3 , right ?

RW5 anyone ?
Old 28th July 2010
  #8
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RW

From memory, I didn't like RW3, too floppy.
RW5 wasn't available.
It seems to be roughly equivalent to 705.
OK for traps up to say 6 inches. Not good for thicker e.g. Superchunks.
Ideally you would need to see and feel this stuff to determine if it would work in whatever trap design you are planning. e.g. Floppy is not good in a Cloud!

It is such a pain the the best products, e.g. Roxul, and OC are not distributed well.


DD
Old 29th July 2010
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Thank you all so much, especially DanDan, I'll probably have more questions once the material has arrived. I managed to find RS100 / RS60 Rocksilk which I ordered today. RS60 for the entire ceiling/reflection points and RS100/RS60 combination for the corners/basstraps.

Supply of this material is indeed a problem.

Let's face it: Aren't the inspired-by-nature Rockwool / related products an absolutely amazing invention ! I think it's an incredible product !
Old 29th July 2010
  #10
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Great

You are welcome. You might want to consider the 100 for overhead in order to prevent sagging. I haven't seen 60, so feel it out.
Thick traps work better with lower density. If you are doing Corner Straddles 100 is fine, as is 60. However for SuperChunks I would not go 100.
Yes, incredible stuff.
DD
Old 29th July 2010
  #11
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Sorry, of course I meant, RS100 10cm overhead all ceiling and RS60 10cm + 5cm straddling the corners..

No time to build Superchunks
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