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Originally Posted by L.B  I found some rock wool at 70kg/m3 its that alright or should I try to find something higher, I was thinking the more density the less panels you would need but probably to cover several reflection points the best. |
That's fine, but higher density doesn't make up for less surface area. If you had to err in one direction you'd want less density but more surface area. To be clear, if you can get the 70Kg stuff, get it...but cover as much area as you would have covered had you been working with 48Kg stuff.
Frank