Best soundproofing solution for floorboards?

Discussion in 'Wood' started by Andy Green, Apr 26, 2020.

  1. Andy Green

    Andy Green Member

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    My girlfriend and I have recently bought a house, but the floorboards upstairs are incredibly squeaky, it's all chipboard.

    We're planning on having a couple of lodgers living downstairs, but I'm aware that unless we sort the floor out first, it'll drive them insane whenever we're walking around upstairs.

    We'd really appreciate some advice on what the best flooring solution would be to eliminate both impact noise (from walking around) and airborne noise (we're planning on having a child at some point in the future).

    We'd ideally want to have proper floorboards fitted rather than chipboard due to better durability and ease of access in case parts of the floor need pulling up in future (accessing pipes etc.)

    I was thinking that we could put soundproof underlay directly on top of the floorboards and then carpet over the top (to help cancel out the airborne noise).
    I've also seen some joist caps that fit between each joist and the subfloor above which apparently helps further reduce footfall noise, however apparently these aren't compatible with normal floorboards. Is there a similar solution that can be used with floorboards?

    Can anyone advise on which flooring solution we'd be best going for please?

    Thanks a lot :)
     
  2. tarkett85

    tarkett85 Well-Known Member

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    The “best” to go for would be to change the chipboard to floorboards or ply, use Regupol then a quality carpet underlay.


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  3. Andy Green

    Andy Green Member

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    Thanks a lot for your advice.
    Is there no point putting joist caps on then?
     
  4. tarkett85

    tarkett85 Well-Known Member

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    I really don’t like chipboard and that’s what they’re made for so I would personally give them a swerve. The ideal option is expensive and would raise the floor by 20+cm and unless someone is playing drums upstairs the other option will keep the height down and give the best acoustic performance other than creating a room within a room.


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  5. Andy Green

    Andy Green Member

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    Ok perfect, I know what we should be doing now.
    Thanks again for your help, it's much appreciated!
     
  6. tarkett85

    tarkett85 Well-Known Member

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    No worries


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  7. Distinctive Adam

    Distinctive Adam Well-Known Member

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    A decent pu carpet underlay will give you 44db, usually anything above 18db is classed as passable
     
  8. tarkett85

    tarkett85 Well-Known Member

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    Depends on the audio frequencies mate, they don’t deal with high-mids and high frequencies the same as low-mids and lows.


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  9. Distinctive Adam

    Distinctive Adam Well-Known Member

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    Yeah good point pal,
     
  10. tarkett85

    tarkett85 Well-Known Member

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    That’s why I mentioned regupol too, it’s extra layers that’ll help without creating a false floor.


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