DIY absorbsion panels - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 13 Old 07-23-14, 02:59 PM Thread Starter
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DIY absorbsion panels

I want to make a start to make my own absorbsion panels.
I read a lot about them and wanted to start with some basic panels made from Roxul Safe and Sound. My problem is that where i live (the Netherlands) the have no Roxul, the Dutch company is called Rockwool.
Unfortunately, they have no panels with that name. So i called a Rockwool account manager to ask what i could use that came as close as possible to the 'safe and sound'. He said that i need the 212 (http://rwiumbracobn.inforce.dk/media...aat_212_nl.pdf). The problem is that i must order a batch and the construction company's rearly use this.

What could i use as alternative for 70mm Safe and Sound? Should i (besides the thickness) just look at the weight per m3?
Some peaple say i should use glasswool like This

I'm confused with the many differend products rockwool has, and i can't find any absorption numbers in the specs.

Who can help me with this?
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post #2 of 13 Old 07-24-14, 09:05 AM
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Re: DIY absorbsion panels

Either can work pending the density. You want in most cases something equivalent to 3lb/cu ft.

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post #3 of 13 Old 02-10-15, 01:07 PM
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Re: DIY absorbsion panels

Would eggcrete/foam and rockwool work?
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post #4 of 13 Old 02-10-15, 01:29 PM
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Re: DIY absorbsion panels

Skip the foam - basically worthless. Rockwool can work if the right density. Just a pain to cut and work with.

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post #5 of 13 Old 03-13-15, 01:38 PM
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Re: DIY absorbsion panels

some wooden stuff with rockwool

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post #6 of 13 Old 03-21-15, 12:57 PM
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Re: DIY absorbsion panels

I hope I'm not stepping on toes by posting this here but it seemed to be a good place to avoid somewhat duplicate threads.

I'm building some 24" X 48" absorption panels which will use 1 X 4 frames and have the Rockwool 60 2" thick panels covered with Burlap.

Some videos I've sees show the rockwool panels being stuffed inside thin plastic bags before covering to insure the fibers don't escape.

I am considering using Drycleaning bags.

good idea?

bad idea?

doesn't matter?
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post #7 of 13 Old 03-21-15, 02:00 PM
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Re: DIY absorbsion panels

That should be fine as long as they are very light.

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DIY completed:

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post #8 of 13 Old 03-21-15, 02:09 PM
 
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Re: DIY absorbsion panels

Quote:
TheGimp wrote: View Post
I hope I'm not stepping on toes by posting this here but it seemed to be a good place to avoid somewhat duplicate threads.

I'm building some 24" X 48" absorption panels which will use 1 X 4 frames and have the Rockwool 60 2" thick panels covered with Burlap.

Some videos I've sees show the rockwool panels being stuffed inside thin plastic bags before covering to insure the fibers don't escape.

I am considering using Drycleaning bags.

good idea?

bad idea?

doesn't matter?
Are you using (2) 2" thick for each panel, or just one? We used (2) 2" thick Roxul R80 panels for each first reflection point and it worked great.

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post #9 of 13 Old 03-21-15, 03:53 PM
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Re: DIY absorbsion panels

1 - 2" thick for each panel.

I may have to buy another box of acoustic panels.
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post #10 of 13 Old 03-21-15, 04:35 PM
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Re: DIY absorbsion panels

Hi
Try cloth used by gardeners underneath barque
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