Author Topic: Reducing Airborne Noise from Room Below  (Read 6833 times)

Pete76

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Reducing Airborne Noise from Room Below
« on: October 27, 2012, 09:47:10 PM »
I have two bedrooms on top of each other in my house.

Would adding a heavy carpet + 20 lb rubber slab carpet pad on the 2nd floor bedroom help reduce airborne noise (ie talking etc) ? I'm not too worried about impact noise.

I know mlv + foam is an option as a underlayment but it looks pretty expensive.

Thanks!


Randy S

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Re: Reducing Airborne Noise from Room Below
« Reply #1 on: October 29, 2012, 05:49:40 PM »
does the rubber slab have an STC rating?? if not it will not block sound.
Randy Sieg

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Pete76

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Re: Reducing Airborne Noise from Room Below
« Reply #2 on: October 30, 2012, 02:38:49 AM »
It's from home depot. I don't see any advertised STC on it ..

http://www.homedepot.com/h_d1/N-5yc1v/R-202561367/h_d2/ProductDisplay?catalogId=10053&langId=-1&keyword=carpet%20pad&storeId=10051#.UI8qrXXA9i0

Would the 1 lb mlv work as a underlayment under the pad + carpet? or cork?

I was also looking at Privacy Ultimate Carpet Underlay from a competitor too and wondered how MLV compares against the recycled rubber..

Thanks


Randy S

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Re: Reducing Airborne Noise from Room Below
« Reply #3 on: October 30, 2012, 03:40:08 PM »
both products you are referring to address impact noise issues...not airborne sound...

MLV is a sound blocker STC 26
Randy Sieg

Super Soundproofing Co
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888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

Pete76

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Re: Reducing Airborne Noise from Room Below
« Reply #4 on: October 30, 2012, 04:09:07 PM »
ok just confusing as the privacy folks datasheet say theirs has a stc of 27 at the low end to 32 at the other end.

The only issue I had with that product is that it's twice as thick.

Can I put it directly on the hardwood?

<hardwood floors> <1/8 mlv> <carpet pad> <carpet>

Can I just use double sided tape between the hardwood floors and 1/8th mlv ?  also tape between the 1/8 mlv and carpet pad?

Randy S

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Re: Reducing Airborne Noise from Room Below
« Reply #5 on: October 30, 2012, 04:28:56 PM »
The privacy performance underlay, the premium carpet underlay and the privacy plus carpet, have MLV in them ...we have samples here of those lines...the ultimate is one i am unsure of....as it appears to be recycled rubber not mass loaded vinyl.
Yes you can put MLV directly to the wood floor. it would be better to have a layer between the floor and the barrier for maximum performance.
when it comes to MLV 1lb. 1/8" STC 26  --- 2lb 1/4" =STC 32
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

 

anything