Soundproofing a SIPS house??
Last Post 07 Jul 2019 09:31 PM by California. 35 Replies.
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goodytUser is Offline
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14 Sep 2011 08:09 AM
Alton,

Thank you for the quick response. I plan to use the OSB-PU-OSB panels from a company in Colorado. I am truly a neophyte is this subject, but the research I have done on the internet leads me to choose the PU over the EPS because of increased R-factor. It is my hope that achieving the greatest possible R-factor will allow me to have a comfortable interior environment with no other heating source but a hot water radiant heat system.

However, my question regarding the ice shield material was due to the thread on sound transfer. While this house will be "in the woods" of Angel Fire Village, I still would like to have a reasonably sound-proof house. Therefore, it just occurred to me that the rubber material between the SIP wall panels and the "shake-cut" Hardi siding panels might serve the same sound-deadening effect of the Green Glue mentioned in the thread for interior use.

Finally, not sure what you mean by "drainage plane or rain screen between the SIP and facade?"
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14 Sep 2011 03:16 PM
You might want to Google drainage plane and rain screen for a good definition.  In your case, it would basically be an air space between the SIP and the exterior finish that allows the airflow to lower the moisture content of the exterior finish.  Hardie board and wood products may last longer if the moisture content is low.
Residential Designer & Construction Technology Consultant -- E-mail: Alton at Auburn dot Edu Use email format with @ and period . 334 826-3979
cmkavalaUser is Offline
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23 Sep 2011 03:38 AM
goodyt; when choosing PU over EPS , you should also be aware that PU continues to off gas for about a year, shrinks with age and looses R value, while EPS remains inert and R value increases as it gets colder
Chris Kavala
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1-877-321-SIPS
DilettanteUser is Offline
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12 Aug 2018 10:56 AM
If you're going to go with an additional insulation setup for sound deadening, possibly look at Rockwool, rather than fiberglass.
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12 Aug 2018 11:09 AM
Thicker walls and roofs with a furred out air space between sip and drywall aids greatly
Chris Kavala
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bennybestinUser is Offline
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12 Nov 2018 04:08 PM
Use soundproofing exterior walls. These are engineered system designed for high reduction of outdoor noise. The exterior acoustic panels are typically used outdoors to control industrial/mechanical noise, HVAC noise, transportation noise and other disturbing noises produced by chillers, air handling equipment, fans, transformers, compressors etc.
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16 Nov 2018 10:34 AM
Posted By pbrane on 28 Jul 2011 11:37 AM
Thanks for all the swell replies...

I spoke to the Green Glue company yesterday regarding SIPS, and they had done some testing. The naked SIP performed poorly (STC 22), which is less than a standard 2 x 4 wall. Then they added drywall (1 sheet, no GG) and it went to 31. They added a 2nd sheet of drywall, and it was 33, which is still not so good. And oddly (and odd that they'd admit it), they added GG in between the drywall layers, and it didn't add much if any improvement(!) Then they tried adding GG and a sheet of drywall to the EXTERIOR of the SIP, and it shot up to 61! Of course you wouldn't do this in real life, but you could probably get a decent result with another layer of OSB and GG instead of the drywall.

They also tested using an interior metal stud wall, 24" on ctr, with fiberglass batts and an air gap of 1" and 2 layers of drywall and GG in between, and got STC of 54. This might be the best way to go, as you then have a nice chase for wiring etc, and even higher R-value on the wall assembly. The next question I'd have is how it would perform as far as moisture goes. I'm no expert, but I don't see a big problem. Any comments on using a poly vapor barrier over the studs/batts?

Thanks again!

Actually you CAN add drywall to the exterior.  This is what fiber-faced gypsum systems are:

http://www.securockexoair.com/en.html

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16 Nov 2018 12:16 PM
Dilettante,
correct , I have used exterior grade drywall to attain a fire rating on a zero lot line SIPs build
but even without drywall there would usually be an exterior cladding of siding, stucco, etc. that would benefit the STC
we always furred the interior side only of the panels with 1-1/2" hi hat furring that benefits sound control and make wiring easier and provides future wiring access that would not be there if using interior SIP chases
Chris Kavala
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1-877-321-SIPS
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16 Nov 2018 12:22 PM
An earlier Post:
27 Jul 2011 06:08 PM
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Alton,

SIP's seem to do a good job stopping high frequency noise, but don’t seem to do as well with low frequency noise. High mass walls do a better job stopping sound than low mass walls. If you had an extruded polystyrene wall that was the same thickness as an expanded polystyrene panel, the extruded panel would be quieter. Would a steel SIP panel be quieter than an OSB panel? I think so, but I can’t prove it. I think the difference would be minimal. Sound is vibration, and if the interfering material transfers the vibration, it’s noisy, but if the material subdues the vibrations, it’s quieter. Concrete (high density, high mass) does a good job of sound reduction. The more mass you can add to your wall (concrete siding, Quiet- Rock, and an air gap to stop vibration transmission) the quieter the house.

Steve
GrandCountySIPs.com

Steve Etten
Chris Kavala
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1-877-321-SIPS
DilettanteUser is Offline
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17 Nov 2018 12:35 AM
I'd wonder on that.
Remember, metal sips are normally using a fairly thin skin, compared to an OSB SIP.
And there are some metal sip systems that aren't actually skinned.  They're essentially "foam in a frame".
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17 Nov 2018 02:21 PM
Posted By Dilettante on 17 Nov 2018 12:35 AM
I'd wonder on that.
Remember, metal sips are normally using a fairly thin skin, compared to an OSB SIP.
And there are some metal sip systems that aren't actually skinned.  They're essentially "foam in a frame".




yes I don't consider metal studs with insulation a "SIP", they are a panelized wall system , there is a HUGE difference
when I talk about SIPs I am talking about 2 skins and a laminated foam core at the structural component ,
anything else - IS something else
Chris Kavala
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1-877-321-SIPS
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17 Nov 2018 05:51 PM
Agreed.
CaliforniaUser is Offline
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07 Jul 2019 06:41 PM
Chris, what kind of clamps would you recommend for the electric wiring? On your photo, they are using some kind of black plastic strips or hooks: what is this product?
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07 Jul 2019 07:08 PM
Posted By California on 07 Jul 2019 06:41 PM
Chris, what kind of clamps would you recommend for the electric wiring? On your photo, they are using some kind of black plastic strips or hooks: what is this product?



California,
arlington cable support (need to get at an electrical supply house)
also zip ties with a screw eyelet are readily available at Home Depot or Lowes
Chris Kavala
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1-877-321-SIPS
CaliforniaUser is Offline
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07 Jul 2019 09:24 PM
I found this product for wire attachment:
https://www.amazon.com/dp/B07F5X543P/ref=sspa_dk_detail_4?psc=1&pd_rd_i=B07F5X543P&pd_rd_w=mliiH&pf_rd_p=8a8f3917-7900-4ce8-ad90-adf0d53c0985&pd_rd_wg=6piGc&pf_rd_r=4H2PB5TVHGW9Z0Y0STQ0&pd_rd_r=343fb116-a0fd-11e9-9106-717796e01640

Would that work or is there a preference for something true and tried?
CaliforniaUser is Offline
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07 Jul 2019 09:31 PM
Thanks, Chris! I'll look for that.
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