Author Topic: floating floor butted to skirting or wall  (Read 1177 times)

Pickleton

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floating floor butted to skirting or wall
« on: November 13, 2015, 06:47:12 PM »
I understand that it would be preferable to install a floating floor butted up to the wall, and under the skirting. But the skirting has already been installed. Is it such a bad idea to butt the new floating floor (with it's isolating perimeter foam) up against the skirting instead? or would I be losing out significantly on the acoustic performance?

My situation is roughly as follows:
The floorboards don't quite meet the (solid, non cavity) wall, and the plasterboard (or whatever old fashioned render it is) behind the skirting doesn't quite meet the floor. Should I maybe place wood under the ends of the floorboards to fill the gap?  Flanking sound is an issue. But how should it be dealt with here?



I will certainly be filling the gap between the final joist and the wall with insulation, and sealing the floorboards etc. But should I also be doing something more substantial? and if so, any suggestions?








Thanks

Randy S

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Re: floating floor butted to skirting or wall
« Reply #1 on: November 16, 2015, 06:10:20 PM »
Normally we use mass loaded vinyl on the floor before a floated floor is installed to increase the mass of the system to reduce airborne noise.

as long as you are able to create the air tight seal you should be fine.

Randy S.
Randy Sieg

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www.soundproofing.org
888-942-7723
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Fax.760-752-3040

Pickleton

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Re: floating floor butted to skirting or wall
« Reply #2 on: November 17, 2015, 02:37:05 PM »
thanks. We are going ahead and installing inside the skirting.

As for mass loaded vinyl, the floating floor in question is already very heavy (26kg/square meter).
We do have old carpet tiles which we could use. They are bitumen based I think, and would add another 5kg/ square meter. A reasonable idea? Pointless? Bad idea?

Randy S

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Re: floating floor butted to skirting or wall
« Reply #3 on: November 17, 2015, 04:20:20 PM »
what is the floating floor system you are going to be using?

link please

Randy S.



Randy Sieg

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


Randy S

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    • Super Soundproofing Co
Re: floating floor butted to skirting or wall
« Reply #5 on: November 17, 2015, 05:53:29 PM »
Ok since I have not used this product and have not seen the field value, what I would suggest is to make sure it will do what they say.

It does look like it has some decent mass value however I am unsure of the IIC (impact isolation coefficient). Give them a call and ask then for the impact test and the assembly they tested on.

If your floor system and test assembly match then good but if they only tested on 6-8" concrete you might find out that it does not perform as they say.

Normally for good impact reduction systems we try to decouple 50% or greater of the surface area from the new subfloor from the existing subfloor.. reducing the amount of pathways for impact to travel.

Randy S.


Randy Sieg

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