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Cold bridging / insulation

  • 19-03-2024 11:12AM
    #1
    wersal gummage
    Registered Users, Registered Users 2 Posts: 1,663 ✭✭✭


    Hi folks,

    Possibly over thinking this but have seen this concept of cold bridging etc and can't really say I understand it and whether I need to take it into account here.


    I've removed an external vent cover and removed an old fkexi ducting pipe. I'm replacing with rigid ducting. All fine. Only query I have is that basically the "hole in the wall" is massive, a good square foot, and inside that hole there's a lot of empty space before I hit a dedicated ducting tunnel, when I install the new duct I'm left with a massive kind of empty space inside the external wall. So this was always like this I just didn't know about it. Just wondering before I close up a new vent, should I shove a bit of earthwool or the like into the hole? Not sure if I'm then causing issues with hot or cold bridge or I even need to look into this?


    Thanks for any suggestions



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