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Discussion Starter · #1 ·
Hard to find the Lino RC where I am...this option is available though. Thoughts?


http://www.knaufinsulation.ca/en/content/sonic-xp-duct-liner


125 250 500 1000 2000 4000 NRC
1.5 PCF 1"(24 kg/m3 25 mm) .18 .36 .59 .86 .95 .90 .70
1.5 PCF 1.5"(24 kg/m3 38 mm) .35 .51 .83 .93 .97 .96 .80
1.5 PCF 2"(24 kg/m3 51 mm) .34 .64 .96 1.03 1.00 1.03 .90
2.0 PCF .5"(32 kg/m3 13 mm) .09 .14 .40 .60 .73 .82 .45
2.0 PCF 1"(32 kg/m3 25 mm) .25 .35 .69 .89 .96 1.01 .70
2.0 PCF 1.5"(24 kg/m3 38 mm) .27 .55 .87 .99 1.00 .98 .85


Lino RC comparable:

125 250 500 1000 2000 4000 NRC
½' 13mm 0.07 0.20 0.44 0.66 0.84 0.93 0.55
1" 25mm 0.08 0.31 0.64 0.84 0.97 1.03 0.70
1½" 38mm 0.10 0.47 0.85 1.01 1.02 0.99 0.85
2" 51mm 0.25 0.66 1.00 1.05 1.02 1.01 0.95
 

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I would use the Knauf instead of Linacoustic since it doesn't contain any formaldehyde. I don't think you will ever notice the slight difference in acoustic coefficients.

I believe we used Knauf in 7channelfreak's theater.
 

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