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Bedroom-over-garage floor insulation

  • 25-08-2012 10:56am
    #1
    Registered Users, Registered Users 2 Posts: 4


    Hello,

    I would like to insulate the floorspace between a bedroom and the garage beneath, but have some concerns:

    Is Quintherm as/more effective than Kingspan, and can I use the type with foiled sides? Or is a net filled with Rockwool a better option? (I'm trying to keep the drafts down too)

    And do I need a lining above or below either of these?

    Need to do this soon, as global warming is making the winters a lot colder now.


Comments

  • Closed Accounts Posts: 5,433 ✭✭✭sinnerboy


    Personally I would opt to rockwool (not fibreglass) pack the floor as that material has excellent fire resisting properties. I assume that their is a plasterboard ceiling over the garage - if not their must be for fire resistance.

    Ideally it would be best to lift the floorboards of the bedroom to apply a polythene layer below the floorboards.


  • Registered Users, Registered Users 2 Posts: 4 Tsarina


    Thank-you Sinnerboy for a speedy reply,

    Would I use that in a net (there is plasterboard beneath, by the way) or just fill the entire void without any support? Also what sort of polythene lining do you suggest between it and the bedroom floorboards?


    thanks in advance,


    Tsarina :)


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