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    Best thickness for loft insulation

    Loft Specialists

    What is the ideal thickness for a loft insulation? Does it depend on your home?

    Asked by Christian on 25th Aug 2021
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    Best Answer

    AliRay construction

    "170mm is good enough to lay in your loft. If you put more it won't really be much better but don't put less"

    Answered on 6th Sep 2021 - Member since Jul 2019 - report
    Nasri construction Ltd

    "The recommended depth of blanket style insulation (glass or mineral wool) for a loft is 250 to 270 mm"

    Answered on 6th Sep 2021 - Member since Jul 2019 - report
    Bison Roofing

    "270mm glass Wool is the best thickness for good installation for Loft installation"

    Answered on 6th Sep 2021 - Member since Nov 2019 - report
    Visual Homes Ltd

    "Hi

    You need a minimum depth of 270mm insulation especially if it’s fibreglass. Thanks"

    Answered on 6th Sep 2021 - Member since Jul 2020 - report
    Yorkshire Loft Boarding

    "Hi Christian,

    The current minimum standard is 270mm. A lot of newbuild properties we install our boarding into have as much as 400mm but 270mm is the standard.

    Kind regards

    Gavin"

    Answered on 6th Sep 2021 - Member since Jul 2021 - report

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