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  • FIRST POST
    • cubegame
    • By cubegame 12th Aug 18, 8:09 PM
    • 1,636Posts
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    cubegame
    Anyone know the lift insulation equivalent depth of celotex?
    • #1
    • 12th Aug 18, 8:09 PM
    Anyone know the lift insulation equivalent depth of celotex? 12th Aug 18 at 8:09 PM
    I'm looking at getting an Epc for our house and hopefully it will make it to the E level despite a G rated boiler.

    We have 12cm thick foam celotex as loft insulation. How much "normal" depth does thus equate to?
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  • archived user
    • #2
    • 12th Aug 18, 8:17 PM
    • #2
    • 12th Aug 18, 8:17 PM
    celotex have a uvalue calculator on their website where you can put all your construction in and get an accurate calc
    • ComicGeek
    • By ComicGeek 13th Aug 18, 12:04 PM
    • 353 Posts
    • 288 Thanks
    ComicGeek
    • #3
    • 13th Aug 18, 12:04 PM
    • #3
    • 13th Aug 18, 12:04 PM
    From memory, rigid insulation thickness is multiplied by 2 to give an equivalent insulation quilt thickness for entering into the EPC software - at least for England anyway, might be different rules for other areas. So 240mm quilt equivalent.

    This doesn't equate directly to an EPC rating though, it's only part of the overall calculation.
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