Workshop Soundproofing - Page 2 - Woodworking Talk - Woodworkers Forum
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post #21 of 26 Old 04-03-2016, 10:08 PM Thread Starter
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It is amazing how many options are available.

Searching for foam and stonewool I also came across this thing which is too good to be true, but I think it is worth mentioning.

Yes, a Google search revealed many local foam companies. However, I wonder how this foam compares to the other materials available.

I prefer the choice of salvaging materials and reusing them myself because this will keep the costs down a bit and that bit can be invested in tools.
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post #22 of 26 Old 04-04-2016, 01:05 PM
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I prefer the choice of salvaging materials and reusing them myself because this will keep the costs down a bit and that bit can be invested in tools.
Yes salvage and repurposed materials can work but YOU then must have the means to test them. Building are expensive and you need to engineer them to meet your requirements so then you know before you spend the money. You you'd need to measure the sound attenuation properties of an salvaged material before you go to the trouble of installing a literal truck load of the stuff. And YES, even for the small space you are taking about, you are going to need a good size truck to haul it all. Just work out the required cubic volume.

Again the best is to have zero physical connection between inner and outer surface AND to seal every space where air might flow. You will then need ventilation ducts with baffles.

The lowest cost material you will find is normal fiber glass insulation, It works as well as the expensive stuff and is cheap.

Finally DO NOT GUESS. The data for sound attenuation is available. Pick one of the published designs.
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post #23 of 26 Old 04-04-2016, 08:46 PM Thread Starter
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No problem with testing, I just need to get a db meter first.

I am aware of the volume of the matterial. This however would be trouble only if I salvage them, because I will need someone with a truck to help. Otherwise, 50 shipping and most companies dispatch a truckload. add another 20 for the transporter guys and we are fine.

Does the "Room Within A Room" method not require vacuum between the walls?

In any case, it is probably a little too extreme. My biggest concern is that the gap will be crawling with cockroaches within a few months...
not to mention that the space will be reduced significantly.
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post #24 of 26 Old 04-04-2016, 08:59 PM
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In any case, it is probably a little too extreme. My biggest concern is that the gap will be crawling with cockroaches within a few months...
not to mention that the space will be reduced significantly.


If you use spray foam in between the walls there won't be anything in there. Rodents and insects do not like it. The same can not be said for fiber glass, rock wool or cellulose.

The loss of space I wouldn't call significant. You could literally be an inch away from the existing walls/ceiling and lose less than a foot all around.
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post #25 of 26 Old 04-05-2016, 10:06 PM
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If you use spray foam in between the walls there won't be anything in there. Rodents and insects do not like it. The same can not be said for fiber glass, rock wool or cellulose.

The loss of space I wouldn't call significant. You could literally be an inch away from the existing walls/ceiling and lose less than a foot all around.
Rigid foam would delete the purpose by mechanically connecting the two walls. Plus have you checked out the price of spray foam? Almost all of these just have air between the walls

Who asked about vacuum? Yes that would be perfect but the structural requirements would be horrifically expensive. The force on the walls from both sides would be just over 10,000 kilograms per square meter. from each side. The empty space would be crushed. Air works almost as well, use spray foam for sealing cracks and air for filling the larger spaces.

You need to read the link below then simply pick one of the STC levels.
https://en.wikipedia.org/wiki/Sound_transmission_class

Here is another one
http://www.audimutesoundproofing.com...alculated.aspx

Just follow one of the well tested methods so you can predict the result with some level of confidence.
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post #26 of 26 Old 11-03-2016, 10:19 AM
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in such a situation , best solution is to have a temporary sound proof wall, but for effective sound proof it is better to go for layer by layer tempory wall, or curtain for example, i recomment to go through this article http://www.soundbarrierfence.com//u...nsulation.html and http://www.soundbarrierfence.com//f...roduction.html
look how 4 layer sound reduction is used to make a sound proof fence. and better part is its easy to remove and transport. i hope it is helpful for all
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