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sound proofing internal wall

  • 27-08-2014 10:09PM
    #1
    burly
    Registered Users, Registered Users 2 Posts: 314 ✭✭


    Hi all, I'm looking to soundproof an internal wall in a 2 storey house. The wall is between two rooms on the first floor.

    Wall is 4 inch stud partition with 12mm plasterboard each side.

    My plan was to strip off plasterboard on one side. Fit Rockwool in between the vertical studs, and then fit new plasterboards, tape and joint and paint.

    Is this the best way to go? And anyone any experience of how effective it will be?

    Thanks


Comments

  • #2
    analfolklorest
    Registered Users, Registered Users 2 Posts: 5 ✭analfolklorest


    How did you get on with this in the end?.... At a similar point myself?..


  • #3
    baby fish
    Registered Users, Registered Users 2 Posts: 269 ✭✭baby fish


    analfolklorest wrote: »
    How did you get on with this in the end?.... At a similar point myself?..

    I've no experience of actually doing this other than reading about it in books, the method described should help if there was a void between the studs in the existing wall. The insulation between the studs will ABSORB the sound travelling through the voids and reduce the sound

    This next thing might help you if you haven't come across it - >As you have to put drywall back on the side you have removed, another simple step you could do is to increase the MASS of the wall, an easy method to do this is to add a second or third layer of dry wall to the side that was removed or you could go a bit further and do other side too, so now the wall is thicker and this will also reduce the movement of sound from one room to the next. This is known as increasing the mass.

    The final method if I remember correctly is called isolation, it involves building a second wall beside the existing wall that is not connected to the original wall in any way, and fill the cavity between them with sound absorbing material e.g. rock wool(obvious disadvantage is 1 room will get smaller). You could also put on a double layer of drywall too on both sides and you would then have all 3 methods to reduce sound -> Mass, Isolation, and Absorption


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