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21
Soundproofing your Condo, Townhouse or Bed & Breakfast / Re: CEILING SOUNDPROOFING
« Last post by guarddog on January 06, 2019, 11:30:01 AM »
you must leave the perimeter free from hard connections and only use non hardening caulk so you do not create a drum effect.

I see this always mentioned, it is also visually covered on this page or your site.

I would assume this means you can't finish the drywall connection point between the ceiling and the wall in the normal way, as it would create a hard connection (and crack the drywall mud I would assume).

So my question is how are you supposed to finish the ceiling drywall edge?  If you leave a small gap of 1/8th or something which you then fill with acoustical caulk you would still have a funny looking ceiling edge.

Is there some type of trim you can butt the ceiling drywall up against to make a straight finished edge?
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Soundproofing Windows and Doors / Re: best solution for large sliding glass door?
« Last post by Randy S on January 02, 2019, 04:43:04 PM »
I can not give you an idea of cost but you are correct about the double sliders back to back.
That has been the only solution I have seen with the exception of a high 40+ STC rated slider replacement.

Randy S.
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you would get some value of reduction, the real question is it enough reduction.

Since you already know about doubling the mass to achieve a better value, you can start with your idea but build the frame to hold more mass if needed.

Randy S.

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Soundproofing Windows and Doors / best solution for large sliding glass door?
« Last post by slidingglass on December 29, 2018, 06:27:55 PM »
I have a large sliding glass door, approx 120" x 78", which unfortunately faces a school playground. playground's a good distance away but children are extremely loud so it's a problem anyways.


I'm wondering what the best solution for this is. most solutions I've seen for windows involves adding another "window" on the interior to create an air gap, which seems like it's going to be...slightly more difficult for a sliding glass door.


I'm wondering how effective replacing the door with an impact glass door would be since I live on the east coast in a hurricane-prone area anyways. I've also considered just replacing the door with a fixed window and then maybe the double-window thing would work, it already remains closed about 99% of the time anyways, it's a door out to the front of the house, not the back, about 10 feet from the front door.


anyone have any suggestions, ideas of how much this might end up costing, etc.?
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Hello everyone, and Merry Christmas Eve.

In the past I have been able to mitigate sound very well with two layers of dry wall. It's cheap, easy to work with, and if more is needed you just add to what you already have. However, now I am renting, and my renter's lease reads "Resident shall do no remodeling and shall make no alterations of any kind to the Premises of any kind without the written consent of Owner". I like how they capitalized owner and premises.... makes it more official I suppose :)

The sound I am having trouble with is him tromping around up there now and then, and also what sounds like someone dropping a plastic cup or something on the floor. That one is unsettling, as it is always unexpected when it occurs. Thankfully I have no booming stereo up there.

I'm not a lawyer, but to me the words premises and remodeling mean I cannot make any changes to "the structure" of the apt. No painting, no carpeting, and of course, no dry wall screwed to the ceiling. So I was thinking of building 2 sound boxes around my computer desk and bed that do not attach to the walls or ceiling in any way. Frame them up w/ 2x4's, screw 2 layers of dry wall to that, and the end of noise. Does this sound like it would work? I could hinge the sides of the boxes like doors to allow walking in and out, then shut them for when I am in them. There is a wall a/c near the desk, and I was going to buy a small one for the bed area, then vent things at the bottom with slots. It sounds sorta odd I suppose, but the cost would be small and the boxes would be easy to build. 
26
Use our 1/4" mass loaded vinyl and a layer of 1/2" cement board (hardie backer) not duroc.
seal this thing like a fish tank with acoustic caulking.
insulated the cavities.
and most important , make sure the door weights the same as the walls.
7-8 lbs sqft.

http://www.supersoundproofingsales.com/Mass-Loaded-Vinyl-2-lb-sqft-48-W-per-foot/productinfo/09-00005-48-2F/

Randy S.
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Soundproofing Windows and Doors / Re: Soundproofing large windows against 70dB?
« Last post by Randy S on December 17, 2018, 04:06:24 PM »
Yes it would especially for lower frequencies.
The only thing that would alter my statement would be cost vs reduction.
The gains for another inch would be estimated at 6 STC additional points so as long as the cost of moving the existing window out further was not double the cost go for it.

Randy S.
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Soundproofing Generators, Pool pumps, Engine and Dyno rooms / Soundproof Generator Shed
« Last post by slyly on December 16, 2018, 02:14:17 AM »
I am going to be adding a small "generator room" to a detached outdoor shed.  This addition will be built from wood and match the design of the shed and house.  What is the most cost-effective way to insulate this new addition to reduce the sound as much as possible?

Thanks
29
Soundproofing Windows and Doors / Re: Soundproofing large windows against 70dB?
« Last post by MicahZoltu on December 15, 2018, 04:24:12 AM »
The way the current windows are installed, I can probably get ~3" of space between the current window and the second window.  Do you think that will that be enough to give me the necessary sound reduction, particularly of low-frequency noise?  I could probably get another 1" if I un-mount the windows and push them out a bit (at the moment there is a lip outside the window as well as inside due to mounting the windows in the middle-ish of the frame).  If I could get 4", do you think that will be effective at stopping low-frequency noise?
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Soundproofing Windows and Doors / Re: Soundproofing large windows against 70dB?
« Last post by Randy S on December 14, 2018, 04:59:00 PM »
install a second window with the greatest air gap you can acquire, since your walls are concrete you should be able to achieve 2-3" of air space between the existing window and a new window.

Randy S.
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