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Post by keymod on Jul 8, 2014 18:19:29 GMT -6
Has anyone heard of/used a product called "QuietRock" ?
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Post by tonycamphd on Jul 8, 2014 18:57:04 GMT -6
Has anyone heard of/used a product called "QuietRock" ? i have, they carry it at lowes, it looks like 2= 1/4" sheets of drywall with some quietqlue between?, cost is about $60 a sheet! |
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Post by tonycamphd on Jul 8, 2014 19:30:19 GMT -6
Several clients of mine, for whom I have wired their home theaters - both power and audio - have asked me over the years what they can do to help isolate their rooms without any major remodeling. Many have been very pleased with the results of this: Get rubberized roll roofing material, the thicker the better ( some come with waffle pattern embossed ) and staple it over your existing drywall. Then install another layer of drywall over that, preferably of a different thickness than what's already on the wall. The rubber acts as a vibration dampener and the waffle pattern gives a slight amount of dead-airspace. The different drywall thickness won't vibrate the same as the original layer and might even help cancel out vibration transmissions. I have no scientific data to back this up, only that I seem to remember reading about this technique somewhere, perhaps in a book by Alton Everest. The big tubes of GG are $20 each at markertek!! GG suggests using 3 tubes @$60 per sheet!!!! I'm going to give this a go, www.gaf.com/Roofing/Commercial/Products/Modified_Bitumen_Roofing/Self_Adhered/Liberty_SBS_Base_Sheet i already have a roll of it, and keymods suggestion got me thinking, it's butyl based, and it behaves exactly like dynamat(vibration damping material for auto's, which is what GG is, a damping material), it smells very little, but will be completely covered with sheet rock, so it shouldn't be a problem. The advantages i see are 1. 100% coverage 2. 225 sq ft for $100 3. self sticking 4. no tools to buy 5. Totally air tight seal(like any roofing material, and at least way closer to that than GG) It shouldn't gass off anymore than any other rubber based synthetic, plus, like i said, it'll be encapsulated. anyone think of a good reason not to use it? (other than no testing data), i'm confident it will work very well, and of course, i will report back, as a mater of fact, i think i'll shoot a little before and aft vid?? |
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Post by keymod on Jul 9, 2014 4:15:22 GMT -6
There is a lot of seemingly good info on Quietrock's website. Makes for some interesting reading...............They have several more products than what is offered at Lowe's. The stuff appears to be sandwiched layers of whatever they use, even one with a metal layer for RF.
Tony, the stuff I have suggested to people is GAF Tri-ply TP4. Saw it at the local Home Center yesterday for $83.00 per roll, worked out to be about 78 cents per square foot. Can be had cheaper in bulk.
As a DIY solution for improving an existing wall, as I mentioned, I have had several electrical clients who have been very happy with the results. They knew ahead of time that I am not an acoustician and was not trying to sell them anything. I imagine this technique would work even better when doing a purpose-built room from scratch.
Don't forget to overlap the layers a couple inches and wrap it around the room corners.
Of course there will be nay-sayers, especially those people who have spent waaay more on something like Auralex Sheetblock. JMO, YMMV
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Post by gouge on Jul 9, 2014 5:34:08 GMT -6
What is the weight of GAF Tri-ply TP4?
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Post by Ward on Jul 9, 2014 6:21:54 GMT -6
Two words: Quiet Rock[/color][/url] Not just incredibly dense sheetrock, but also caulking and drywall compound (synthetic plaster substitute) to go with it. |
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Post by tonycamphd on Jul 9, 2014 9:46:50 GMT -6
Quiet rock is $60 a sheet, that's completely out of hand IMO, I'm going to the roofing supplier today, I'm going to check out the Tri ply TP4 in person. Liberty, due to it's high butyl content, and self adhering design( almost identical to dynamat, which is very proven), im probably going the liberty route, $100 for 225 sq ft, vs $60 for 32 sq ft quiet rock or GG, and that doesn't include sealant! Vs $84 for 106 sq ft of Tri ply, also about 1lb per ft.(same as liberty), plus I already have a roll of liberty.
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Post by tonycamphd on Jul 9, 2014 12:48:18 GMT -6
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Post by gouge on Jul 9, 2014 14:36:01 GMT -6
None of the mat products listed so far are designed to be sandwiched between layers of gyprock. They are limp systems. Other than improve airtightness you would need to add more than one layer to get anywhere near the mass increase of 1 sheet of generic gyprock let alone comparisons with high density board.
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Post by tonycamphd on Jul 9, 2014 14:36:49 GMT -6
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Post by gouge on Jul 9, 2014 14:39:01 GMT -6
Quiet rock 545 is the studio version and it is $120 a sheet.
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Post by tonycamphd on Jul 9, 2014 14:39:09 GMT -6
None of the mat products listed so far are designed to be sandwiched between layers of gyprock. They are limp systems. Other than improve airtightness you would need to add more than one layer to get anywhere near the mass increase of 1 sheet of generic gyprock let alone comparisons with high density board. What about damping? it's huge when it comes to sound control no? |
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Post by tonycamphd on Jul 9, 2014 14:42:44 GMT -6
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Post by keymod on Jul 9, 2014 14:43:26 GMT -6
Tony, the TP4G is granular. The regular TP4 is better for this application, IMO
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Post by gouge on Jul 9, 2014 14:46:57 GMT -6
Not in the freq a studio needs isolation with. It is thought that adding flexible layers between sheets actually reduces low freq attenuation.
dampening is most effective at reducing impact noise which is why these mat products get used in floors.
you issue could be impact related, flanking noise related or just the outcome of not enough mass.
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Post by gouge on Jul 9, 2014 15:41:03 GMT -6
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Post by gouge on Jul 9, 2014 16:00:14 GMT -6
Compare to Canadian results for wall makeups using fire rated board.
]http://archive.nrc-cnrc.gc.ca/obj/irc/doc/pubs/ir/ir761/ir761.pdf
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Post by tonycamphd on Jul 9, 2014 17:21:09 GMT -6
Tony, the TP4G is granular. The regular TP4 is better for this application, IMO why? |
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Post by tonycamphd on Jul 9, 2014 17:32:30 GMT -6
Not in the freq a studio needs isolation with. It is thought that adding flexible layers between sheets actually reduces low freq attenuation.dampening is most effective at reducing impact noise which is why these mat products get used in floors.you issue could be impact related, flanking noise related or just the outcome of not enough mass. |
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Post by keymod on Jul 9, 2014 17:32:50 GMT -6
Tony, the TP4G is granular. The regular TP4 is better for this application, IMO why? Less mess? No granules getting all over the place while you work with it? AFAIK, the regular TP4 is simply the rubber material, probably a bit more elastic. |
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Post by tonycamphd on Jul 9, 2014 17:37:16 GMT -6
thats what i was looking for, it is pretty impressive, but at $80-4 huge tubes of GG to cover 32 sq ft, there killing me! |
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Post by tonycamphd on Jul 9, 2014 17:41:29 GMT -6
Less mess? No granules getting all over the place while you work with it? AFAIK, the regular TP4 is simply the rubber material, probably a bit more elastic. bro, the pic of the granules IS the TP4? Also, its a torchdown, and asphalt content is higher by virtue of smelling it with my big italian nose lol, the liberty is softer, and smells virtually not. Plus liberty gives you 200 sq ft for $99.00 vs 100 sq ft of Tp4 for $80.00 It's going down this weekend, i'll letchya all know the results. |
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Post by tonycamphd on Jul 9, 2014 17:52:06 GMT -6
Less mess? No granules getting all over the place while you work with it? AFAIK, the regular TP4 is simply the rubber material, probably a bit more elastic. bro, the pic of the granules IS the TP4? Also, its a torchdown, and asphalt content is higher by virtue of smelling it with my big italian nose lol, the liberty is softer, and smells virtually not. Plus liberty gives you 200 sq ft for $99.00 vs 100 sq ft of Tp4 for $80.00 It's going down this weekend, i'll letchya all know the results. If i was a rich man, i'd pay for testing to see the diff between GG/butyl, but even without testing, and based on my construction experience, i would bet a few $'s that in testing, the soft butyl vs green glue, the butyl would out perform, even if it didn't, it would be negligible in difference. Of course this is speculation, but not of the ignorant ilk, my deductions are as follows butyl sheet has more mass, it's heavier. its 100% coverage 100% air tight seal if installed properly guaranteed to stay soft, provide vibration damping and attenuation. |
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Post by keymod on Jul 9, 2014 18:01:19 GMT -6
I thought there were two different types - TP4G and TP4. I am looking forward to hearing of your results.
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Post by tonycamphd on Jul 9, 2014 18:07:12 GMT -6
I thought there were two different types - TP4G and TP4. I am looking forward to hearing of your results. you could well be right? I will let you know how it does, and thanx for putting that idea in my head bromee, i'm sure it's gonna work, i'm just curious to what extent...stay tuned. |
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