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Increasing insulation over existing dry lining

  • 26-01-2011 10:00pm
    #1
    Merch
    Closed Accounts Posts: 3,327 ✭✭✭


    I have drylined walls, not sure if there is any insulation in behind them, I plan on drilling a few sample holes to see the depth and whats in there (I think nothing)
    Just wondering, rather than ripping the whole lot down can I build up a new frame over the existing plaster put something like kingspan in and re cover in plasterboard/foil backed plaster board?

    Any ideas where I can get the U-value of blocks and other materials so I can calculate how much my existing structure has and how much I would have to add to bring it up to an acceptable standard.

    I only plan on doing outside walls/not those adjoining the attached house/neighbours.

    (I actually posted this in DIY and got a reply re dew point and temp gradient across the wall but was recommended to post in C+P)
    If I but some kind of vapour barrier over the insulation before putting the plaster board up would this help?


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