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Sound proofing a door

Discussion in 'Home Cinema Building DIY' started by Operandi, Oct 16, 2003.

  1. Operandi

    Operandi
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    Hi

    Whats the best way to sound proof a bedroom panel door in a dedicated HC room?

    The walls of the room are all brick so there is not much sound > 120Hz passing through those, however the door is the problem.

    I recognise that frequencies < 120 Hz will not be attenuated, however any helpful advice is much appreciated.

    Thanks
     
  2. severnsource

    severnsource
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    You need to seal all the gaps round the door. P shaped self adhesive draught excluders will probably work at the sides and top, but you need to do the threshhold as well.

    If the door is the usual two sheets of cardboard on a paper core, then adding mass after you have sealed the gaps will help. The cheapest way is to stick plasterboard to the faces, the thicker the better.

    Bill
     
  3. Operandi

    Operandi
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    Hi Bill

    Thanks for the good advice. I'll find the draught excluder and some plasterboard and give it a go :)
     
  4. Gazkicka54

    Gazkicka54
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    Hi, buy a Fire Door from B&Q (enviromentally friendly, ie not made from chunks of Rainforest) for £35.

    Regards
    Gar
     
  5. Gary Lightfoot

    Gary Lightfoot
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    I was going to suggest a solid door as the mass helps reduce sound transmission, but the Fire door sounds interesting - what's it actualy made from?

    You can use beading or chamfered skirting to give the door something to but up against on the floor, but this may make a trip hazard. Not sure how proper cinemas do it (other than two doors), but they may use some kind of flexible strip that fixes to the door and acts like a draught excluder.

    Gary.
     
  6. fufna

    fufna
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    Most places use a soft rubber "bump strip"
     
  7. Operandi

    Operandi
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    Have you any idea where you can get one of these from. I've just noticed that there is a half inch gap at the bottom of the door.

    I also looked in Homebase for "P shaped" draught excluder but all they had were the strips of self adhesive foam. Do you think this would work?
     
  8. pemberto

    pemberto
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    If you are interested in fire doors and or Acoustic doors have a look at http://www.shadbolt.co.uk

    They are based in North London and can make a door to any size and any finish.
     
  9. fufna

    fufna
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    I got mine from a shop called NU-Line just off the Portobello road

    I can heartily recommend "Shadbolt" for door making duties also.
     
  10. Gazkicka54

    Gazkicka54
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    I like fire doors, they're strong, soundproof, kickproof...

    @gary:-
    http://www.shadbolt.co.uk/b/doorc.htm

    Cannot understand why peeps buy these, cardboard flimsy doors for £15...

    Regards
    Gar
     
  11. Gary Lightfoot

    Gary Lightfoot
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    Cost? :)

    Gary.
     
  12. Operandi

    Operandi
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    I found the P shaped self adhesive insulation yesterday at a different store so I'll put that around the door frame asap. :)

    The trouble with fire doors seems to be that they are difficult to hang as they are so heavy - I reckon I'd have to get a pro to hang it
     

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