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Post by paulcross on Jan 25, 2021 21:32:33 GMT
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Post by Michael Lawrence on Jan 25, 2021 21:41:07 GMT
The fabric used for acoustic treatments should be both acoustically transparent and fire-rated. If you can easily blow through it, it's acoustically transparent. If it doesn't specifically have documentation describing the fire rating, it's not fire rated. The go-to choice for acoustic treatment fabric is Guilford. shop.guilfordofmaine.com/product-category/acoustic/
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Post by Ethan Winer on Jan 25, 2021 22:37:05 GMT
Just to add to Michael's advice: Since you can't easily test or even touch online products before buying, it's usefulness is a gamble. Table cloths are usually fairly dense, more dense than you'd want covering fiberglass or mineral wool.
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Post by Deleted on Jan 26, 2021 9:40:17 GMT
This probably works. Doesen't look like a dense table cloth. Do you have local H&M which has these in stock ? If you really want that(I like the color white) MAYBE just order one piece first, to be sure.
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Post by paulcross on Jan 26, 2021 10:15:49 GMT
Ye I’ve just ordered one to see what it’s like. So basically if I can breath through it ‘easily’ it’s ok to use?
I was thinking other than this would a bed sheet be any better as is thinner?
Heard a lot of people say that you need to be careful with the fibres so wasn’t too sure about hessian.
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Post by Deleted on Jan 26, 2021 11:17:32 GMT
Yes, as long as it isn't reflective at upper freqs, like wax cloth for example. You can use cotton layer between the insulation and cloth. Don't know what those are called in english, but found those rolls that you usually buy them, just google cotton roll, there appears some picture of what I mean.. This material is widely used in professional studio builds(between insulation and cloth).
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Post by peterbatah on Jan 26, 2021 15:30:52 GMT
Burlap is my go-to fabric
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Post by Ethan Winer on Jan 26, 2021 16:33:32 GMT
I think hessian is the British word for burlap? A good fabric store will have it in several colors, not just "potato sack" brown.
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Post by paulcross on Jan 27, 2021 11:51:21 GMT
Ye I’ve seen a lot of people use hessian/burlap for acoustic panels just wasn’t sure if they were also used on bass traps?
Wasn’t sure if there was something to do with sound waves etc that make certain material better suited for bass traps so it only allows the low waves to get through? Literally have no knowledge of what I’m talking btw so may probably completely wrong and makes no sense haha?.
I’ve made 16” corner triangles btw if that makes any difference at all?
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Post by rock on Jan 27, 2021 16:45:13 GMT
As Michael first stated above, the material needs to acoustically transparent. That's true for any and all frequencies. Basically, it simply means that the material has an "open" weave so there's space in between the fibers where air molecules can freely vibrate and the sound will pass through to the absorber material behind. So yes, you can use the same material for all your absorber panels including bass traps. For bass traps though, you use paper, plastic or foil lightly spray glued to the front of the trap before you cover with the decorative material. Doing this enhances low frequency performance but it also will reflect some mids and highs (but that's OK for bass traps) so do not use paper etc. on RFZ or other wide band absorbers. As far as the fire rating Michael mentioned, that is highly recommended but unfortunately, often optional depending on local codes and it is apparently within your rights in some places of the world to accidentally burn down your house. www.bulldogadjusters.com/unexpected-causes-of-house-fires/
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Post by paulcross on Jan 29, 2021 9:40:54 GMT
Yes, as long as it isn't reflective at upper freqs, like wax cloth for example. You can use cotton layer between the insulation and cloth. Don't know what those are called in english, but found those rolls that you usually buy them, just google cotton roll, there appears some picture of what I mean.. This material is widely used in professional studio builds(between insulation and cloth). Is this the kind of stuff you mean..? www.finest-filters.co.uk/10-metre-roll-of-filter-wool-5-8mm-thick?gclid=EAIaIQobChMI256WrOvA7gIVC-rtCh1SwQAfEAQYAyABEgKsNvD_BwEDecided to wrap the bass traps in a bed sheet as was breathable as recommended. So you think a layer of this stuff at the front between the fabric and the insulation is recommended or will the bed sheet be ok and also keep out the fibres on its own?
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Post by Deleted on Jan 29, 2021 10:30:03 GMT
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Post by paulcross on Jan 29, 2021 13:56:36 GMT
That AJT upholstery you put the link for is literally 20mins from where I live which is a crazy coincidence!? I gave them a ring as on the website it’s all in ounces rather than thickness. They said the 2oz one is probably quite close to 6mm but is very thin and they said you can almost see through it. You think I’d be safer going with the 4oz or would that be too thick??? Thank god for forums as this is a mind field haha.
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Post by Deleted on Jan 29, 2021 14:17:55 GMT
That AJT upholstery you put the link for is literally 20mins from where I live which is a crazy coincidence!? I gave them a ring as on the website it’s all in ounces rather than thickness. They said the 2oz one is probably quite close to 6mm but is very thin and they said you can almost see through it. You think I’d be safer going with the 4oz or would that be too thick??? Thank god for forums as this is a mind field haha. WoW! Nice coincidence, I just typed "Uk" afterwards! But thats good news ain't it!? Yeah 6mm is pretty thin. JH Brandt have recommended it, but I think you will be fine with the 4oz, don't know how much is equal in millimetres.
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Post by Hexspa on Jan 30, 2021 5:28:55 GMT
Ya, the fluffy stuff is called batting. I used it on my super chunks' frames. The fabric I used is muslin; it's cheap. It's not fire rated but I quit smoking so hopefully I'm safe. The fibers haven't killed me yet either.
They won't take me that easy.
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