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DIY Acoustic Panels - rockwool question
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March 14, 2023 - 6:11 pm
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Hello,
I’m building some acoustic panels, they will be around 1,35 meters by 0,6 meters.

Inside the panel I will be using 2 layers if 40mm high density Rockwool and also 1 layer of 40mm Low density rockwool, so a sandwich of 3 layers total but with different densities. (it’s the material I have)

My question is,
Should I put the low density layer up front the other 2 high density layers, or should I put the Low density layer on the back (wall side) having the 2 high density layers up front?

I had different opinions on this, so I would like your help

Thank you so much for your help

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Chief Acoustics Engineer
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March 14, 2023 - 7:57 pm
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We do not use this material type due to the health issues along with poor acoustical performance.

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May 6, 2023 - 3:25 am
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Hi,

what do you mean with health issues?

I have read that Rockwool is safe, especially when sealed. One uses that yes also in the construction of houses?

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Chief Acoustics Engineer
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May 6, 2023 - 8:09 am
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Most of these insulation types have fibers that can get airborne and into your lungs if used in acoustic panels. It is used within walls as an R – value for climate control. That does not make it right. Over 100 million people smoke cigarettes. Is smoking cigarettes right jjust because 100 million people do it. Along with the health risks, this material type has poor acoustical performance.

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