Room Acoustics Forum by Rives Audio

RE: DIY acoustic panels questions

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If I was going to use faced fibreglass and the facing was strong enough to handle the compression applied by a covering stretched tight, I would try the faced fiberglass with the paper tacked to the back of the frame and no plastic at all. A covering of polyester over the paper would be a reasonable safety precaution in case the paper splits at some stage and exposes fibreglass. I do think you need polyester over the front of the fibreglass.

I would only use polyester with unfaced fibreglass, and I would make sure that no fibres could escape between the plastic backing and the frame by both gluing and stapling the plastic down. You could then omit the polyester layer between the burlap and the plastic at the back of the panel but I would probably prefer to have some polyester there for HF to mid frequency absorption on that side also, otherwise the back of the panel will be reflective from mid frequencies on up.



David Aiken

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