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100mm insulation

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  • 11-08-2020 6:49pm
    #1
    jasushaw
    Registered Users Posts: 151 ✭✭


    Hi
    I have insulated my house with 100mm cavity insulation in a timber frame house and made air tight. Should I just slab with 12mm board or will I need 50mm insulated board. I know the new standard is 150mm of insulation but I don't like stuffy temperatures in houses.

    Will a 100mm be ok?


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    #2
    Calahonda52
    Registered Users Posts: 12,346 ✭✭✭✭Calahonda52


    whats your ventilation strategy which is the key to stuffiness?
    .
    airtightness and insulation are two different issues

    How do you know it is airtight?

    Is this a self build?

    “I can’t pay my staff or mortgage with instagram likes”.



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    #3
    sydthebeat
    Subscribers Posts: 41,383 ✭✭✭✭sydthebeat


    jasushaw wrote: »
    Hi
    I have insulated my house with 100mm cavity insulation in a timber frame house and made air tight. Should I just slab with 12mm board or will I need 50mm insulated board. I know the new standard is 150mm of insulation but I don't like stuffy temperatures in houses.

    Will a 100mm be ok?

    Do you know what u value you need to meet to be building reg compliant??


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