I am absolutely sick of Rockwool, but...

  • Thread starter Thread starter battleminnow
  • Start date Start date
battleminnow

battleminnow

What's this button do?
I really need the NRC for this stuff. I am trying to pitch this to a church board in order to save them $$$$ on Sonex, Auralux, etc. Does anyone have this info or know where to find it? I need some real figures and it would be nice if they were aligned by frequency like some fiberglass NRC charts are.

Thanks,
Pete
 
ABSORPTION COEFFICIENTS FOR SELECTED ROCKWOOL SLABS

Material Thickness Mounting Frequency (Hz)
(mm) 125 250 500 1K 2K 4K
Slab RW2 50 Direct 0.15 0.60 0.90 0.90 0.90 0.85
Slab RW2 100 Direct 0.35 0.95 1.00 0.92 0.90 0.85
Slab RW3 50 Direct 0.11 0.60 0.96 0.94 0.92 0.82
Slab RW3 75 Direct 0.34 0.95 1.00 0.82 0.87 0.86
Slab RW5 30 Direct 0.10 0.40 0.80 0.90 0.90 0.90
Slab RW5 30 300 mm gap 0.40 0.75 0.90 0.80 0.90 0.85
Slab RW5 75 Direct 0.40 0.75 0.90 0.80 0.90 0.85
Slab RW6 50 Direct 0.20 0.75 0.90 0.85 0.90 0.85
Slab RW6 50 300 mm gap 0.65 0.55 0.75 0.85 0.75 0.85


Here's the link http://www.rockwool.ltd.uk/web/products/ds030/index.cfm

If you want a comparable product to Owens Corning 703 and Knauf 3lb pcf fibreglass boards you want either RW3 or RW45 Rockwool. RW3 is cheaper when I have priced it.

Cheers
 
You are my new best friend:D :D

This is exactly what I need. Thanks so much!!

Pete
 
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