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Thermal looping in "full fill" cavity walls

  • 23-10-2018 12:29pm
    #1
    Lumen
    Registered Users, Registered Users 2 Posts: 31,220 ✭✭✭✭


    Stolen from a thread about closing cavities on Facebook, and starting this thread just cos I'm curious.

    Isn't that yawning gap either side of the insulation a bit of an issue? Or is the idea that you can close it off tight at the top to prevent thermal looping?

    44536547-10156080274174403-7889882466377269248-o.jpg


Comments

  • #2
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    that looks like 100mm partial fill insulation in 100mm cavity

    the gaps on both sides of the insulation will be the least of their worries.


  • #3
    Gumbo
    Moderators, Society & Culture Moderators Posts: 40,346 Mod ✭✭✭✭Gumbo


    Party wall construction?
    What’s happening with the block work on the right side? Looks to be piers in places but nothing tiring it together?


  • #4
    Lumen
    Registered Users, Registered Users 2 Posts: 31,220 ✭✭✭✭Lumen


    Oh yeah, I missed the fact that it was a party wall.

    The use of a wiggly bit of mortar to "straighten" the line of a pitched block wall, is that normal too?

    I find looking at pictures of houses being built fascinating. I should get out more. :pac:


  • #5
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    its a party wall??


  • #6
    kieran.
    Registered Users, Registered Users 2 Posts: 1,175 ✭✭✭kieran.


    sydthebeat wrote: »
    its a party wall??

    Shouldn't be with the ridge board and wall plate carrying throught it??


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  • #7
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    It looks like it might be a separating wall with an attached garage


  • #8
    beauf
    Closed Accounts Posts: 22,648 ✭✭✭✭beauf


    sydthebeat wrote: »
    ...
    the gaps on both sides of the insulation will be the least of their worries.

    What the heck does that mean?


  • #9
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    beauf wrote: »
    What the heck does that mean?

    It looks like 100mm Partial fill insulation in a 100mm cavity.... With no residual cavity retained.


  • #10
    gctest50
    Registered Users, Registered Users 2 Posts: 9,605 ✭✭✭gctest50


    sydthebeat wrote: »
    its a party wall??

    it's a post-party wall


  • #11
    _Brian
    Registered Users, Registered Users 2 Posts: 18,718 ✭✭✭✭_Brian


    The stack of blocks in the external wall to the right of the division is a bit worrying


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  • #12
    beauf
    Closed Accounts Posts: 22,648 ✭✭✭✭beauf


    sydthebeat wrote: »
    It looks like 100mm Partial fill insulation in a 100mm cavity.... With no residual cavity retained.

    Do you mean an air gap or something entirely different.


  • #13
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    beauf wrote: »
    Do you mean an air gap or something entirely different.

    I mean that it appears the product is being used in a manner its not certified for.... But I can't be certain as I don't know the context.


  • #14
    Lumen
    Registered Users, Registered Users 2 Posts: 31,220 ✭✭✭✭Lumen


    sydthebeat wrote: »
    I mean that it appears the product is being used in a manner its not certified for.... But I can't be certain as I don't know the context.
    Yeah, sorry about that. Not the most useful start to a thread. :rolleyes:


  • #15
    beauf
    Closed Accounts Posts: 22,648 ✭✭✭✭beauf


    Any chance of a link to picture of its correct use and installation.

    Perhaps I'm the only one but I'm always interested in hearing the right way to do things, by someone with experience of it.


  • #16
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    beauf wrote: »
    Any chance of a link to picture of its correct use and installation.

    Perhaps I'm the only one but I'm always interested in hearing the right way to do things, by someone with experience of it.


    https://www.xtratherm.com/app/uploads/2018/04/BBA_084613_Thin-R-_XT_CW-XT_CWP-31.01.2018.pdf

    section 4.8
    The residual cavity width to be maintained during construction is 50 mm


  • #17
    beauf
    Closed Accounts Posts: 22,648 ✭✭✭✭beauf


    Perfect. Thanks


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