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Attic insulation

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  • 18-08-2009 9:02am
    #1
    niallo32
    Registered Users Posts: 620 ✭✭✭


    I'm about to start insulating my attic before the cold weather.

    B&Q are selling 2 for 1 on Knauf Space blankets @ €40 each - has anyone used these before?

    Has anyone put the reflective foil behind their radiators and if so was it difficult and worth it?

    Thanks..


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    #2
    40701085
    Registered Users Posts: 219 ✭✭40701085


    FWIW - My plumber told me the reflective foils behind the rads were a waste of time, the modern radiators are convective so draw the air up the centre & heat it - v little heat escaping to the back & if you've drylined external walls then the slabbing is foil-backed anyway.icon14.gif


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    #3
    irelandhouse
    Registered Users Posts: 139 ✭✭irelandhouse


    niall are you insulating in the rafters, joists ?

    are you converting ?


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    #4
    niallo32
    Registered Users Posts: 620 ✭✭✭niallo32


    irelandhouse wrote: »
    niall are you insulating in the rafters, joists ?

    are you converting ?

    Laying insulation between the joists on the attic floor - not converting.


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    #5
    BERmad
    Registered Users Posts: 71 ✭✭BERmad


    How much of an area does the quilt cover? what thickness is it? what is the thermal conductivity of it?
    For 2 rolls of fiberglass 150mm it is about €17 a roll. They cover 7m2 each and they have a thermal conductivity of 0.044 so that is something for you to compare your price on the attic insulation to.


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