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Insulation/Soundproofing for Internal Studs

  • 14-01-2011 2:18pm
    #1
    Wolfhound14
    Registered Users, Registered Users 2 Posts: 100 ✭✭


    I am looking for some advice on what goes between the studs of internal walls.

    This has kinda crept up on me. The boys are onsite slabbing the ceilings and they can slab one side of the internal walls before we do our first blower door test.
    But I really need to be ordering the insulation for the studs:
    I assume that thermals properties are not that critical and I am more concerned about sound transfer.
    Is this correct? and what is typically used.

    Thanks


Comments

  • #2
    studioguest
    Closed Accounts Posts: 23 ✭studioguest


    Wolfhound I think the best would be Moy Acoustic Insulation. Its available in 25,50,70 & 100mm. I think 50mm would be enough..


  • #3
    Wolfhound14
    Registered Users, Registered Users 2 Posts: 100 ✭✭Wolfhound14


    Thanks for the info:

    One other query:
    I went with a TF House and I just looked at my contract. It states

    Supply only of 100mm [12kg/m3] fibreglass insulation to all internal partitions
    300mm [12kg/m3] fibreglass to roofspace

    To me this implies the same insulation is being used in attic and studs.
    Should this be the case?

    I would like some thoughts before I ring the company and ask about. I'm assuming they will say all of the insulation has been delivered, therefore I have enough for internal studs.
    Are there pro's and con's to fitting attic insulation in studs (more interested in cons)


  • #4
    brendankelly
    Banned (with Prison Access) Posts: 318 ✭✭brendankelly


    The spec states 100 mm of insulation and you should go with 100 mm. You will not get a second chance so go 100mm. I would go for either sheep's wool or Hemp but I believe in sustainability. They will use fibreglass everywhere if you let them because it is cheap.


  • #5
    writhen
    Registered Users, Registered Users 2 Posts: 209 ✭✭writhen


    I would use 100mm of a mineral wool with a minimum density of 40kg/m3 - preferably 60kg/m3. But one thing, mineral wool is a good sound absorber, it is not a good sound insulator. The mineral wool in the stud is minimising reflection/reverberation of sound within the stud and should be seen as only part of the overall soundproofing build-up of the stud wall.


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