soundproofing


Hi,
If anyone has succesfully managed to soundproof a ceiling from the noise from the upstairs flat, I'd be glad to hear from them. I am thinking of doing same and would welcome any helpful pointers. Thanks alex
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I tried to do this and had some success. You have to think about it in different frequencies. Low frequency noise i.e. upto 1kHZ is difficult to get rid of. This mainly consists of things like heavy footed people, general thuds etc. 1Khz to 4Khz is about 80% of all voices this is quite easy to get some initial results but hard to eliminate all together. The higher stuff above 4 Khz to 40Khz is easier still. You also have to consider the type of noise, i.e. Impact or constant emission. The constant emission is quite easy to reduce.
Firstly check to see it you have any noise paths between you and the other flat(s). Hot air ducting is a common one as is wiring/pipe voids. Where possible you can filter this noise with good thick insulation or expanding foam. (not so easy in heating ducts). Things like installing draught excluders helps, especially the air tight ones (As sound is transmitted be the transference of the compression of air) Next your ceiling and floor. The floor is easiest. Fill it full of loft insulation (taking care of the building regs). The ceiling: You could use anything from thick wall paper, polystrerene tiles to fitting a false ceiling void and filling that also with insulation.
If you read any books on noise, it will tell you to reduce the noise at source first!
Hope this helps.
Regards G

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called resilient bars. you screw these metal bars (cost about 4 each for 2.4 mtr lengths) to the existing celing joists, and then screw a double layer of plaster plaster board to these bars, creating a new ceiling that is not screwed directly to the ceiling joists. You could also put some rubber matting underneath the upstairs carpet if this is practical. Whichever way you go, to be effective is going to be costly. Cheers Stuart
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