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BaseTherm Liquid Insulation System

Comments

  • #2
    DOCARCH
    Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 19,939 Mod ✭✭✭✭DOCARCH


    I think you may need more depth of it, compared to rigid PIR, to get the right/comparable u-value?

    Used it before in a house retrofit to build up a deep sub-floor space.



  • #3
    sydthebeat
    Subscribers, Paid Member Posts: 44,924 ✭✭✭✭sydthebeat


    https://www.boards.ie/discussion/comment/123473560#Comment_123473560

    looking at the NSAI cert for it, it suggests a u value of 0.15 (min for UFH) for a depth of 200mm with an average perimeter to area ratio.

    That would be similar enough for a 150mm PIR board with 75mm screed which gives a u value on average of about 0.13

    it appears to be a valid choice in that regard.

    still have to pour a subfloor and screed over though, so youre probably looking at an increase in floor construction depth of approx 50mm



  • #4
    DOCARCH
    Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 19,939 Mod ✭✭✭✭DOCARCH


    I also insisted on putting a thin layer of foil-faced PIR on top (like 25mm).

    Absolutely no technical or scientific back up for this, but I felt the underfloor heating might work better, with a layer of foil-faced insulation on top, to reflect heat up!



  • #5
    DOCARCH
    Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 19,939 Mod ✭✭✭✭DOCARCH


    still have to pour a subfloor and screed over though, so youre probably looking at an increase in floor construction depth of approx 50mm

    Yes, slightly more depth required, so if you want to use, depth/finished sub-floor level needs to be considered in advance.



  • #6
    ray o
    Registered Users, Registered Users 2 Posts: 720 ✭✭✭ray o


    https://www.boards.ie/discussion/comment/123475271#Comment_123475271

    The is a concrete slab under the now removed suspended floor that seems suitable for use. Just need to ensure that they can get the required volume/depth of material in there without impacting the finished floor level.

    Fastfloor screed will do a survey with the builder next week

    Thanks for the replies.



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