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    crazzywak's Avatar
    crazzywak Posts: 1, Reputation: 1
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    #1

    May 22, 2017, 10:15 PM
    Impact noise from floor below me
    Hi, My name is Yakir.

    I live in the 4th and last floor of a building, and I never had any problems with noise from the neighbor below me.

    A few months ago I removed a 10cm block interior wall (the building is made of cement + regular blocks), since then I can hear impact noises from below! If they move a furniture inside the house, close the kitchen cabinets, or jump/run in their apartment, I can hear it.

    Why did this happen? Is this due to the loss of mass (I don't think so because the wall weighed about 1.5 tons and I just tiled with 1.5 tons of tiles and the noise is still there)? Did the wall somehow insulate impact noise by being attached to the floor, walls and ceiling? I would really be happy to hear any ideas.

    Thanks.
    joypulv's Avatar
    joypulv Posts: 21,591, Reputation: 2941
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    #2

    May 23, 2017, 03:32 AM
    I live in the US, which doesn't generally build with block interior walls. I would guess that the sound is coming up through the floor where it attached at the floor. Sound has to be insulated against the same way as cold - with 100% coverage, with not one gap. Also the blocks, if the hollow kind, absorbed sound in those spaces.
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