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Pump insulation verses building it in

  • 17-09-2013 8:25pm
    #1
    LR88!
    Registered Users, Registered Users 2 Posts: 2 ✭


    I am in the process of building a new house,trying to decide what is better,building the insulation in or pump the cavity?


Comments

  • #2
    Zaph
    Registered Users, Subscribers, Registered Users 2 Posts: 47,352 ✭✭✭✭Zaph


    Moved from Forum Requests


  • #3
    MicktheMan
    Registered Users, Registered Users 2 Posts: 2,880 ✭✭✭MicktheMan


    LR88! wrote: »
    I am in the process of building a new house,trying to decide what is better,building the insulation in or pump the cavity?

    Depends.

    What does your architect / engineer recommend?

    There have been many discussions here on this. Searching the forum would be a good start.:)


  • #4
    LR88!
    Registered Users, Registered Users 2 Posts: 2 ✭LR88!


    Our architect is leaving it up to us,
    we have had so many conversations with many people in the industry and they all give us a different opinion. We spoke to kingspan,they give a 10year guarantee with the Eco bead,he had no answer for us as to what happens after the 10years of it isn't efficient enough were as xtratherm are giving us a life time guarantee.


  • #5
    fclauson
    Registered Users, Registered Users 2 Posts: 1,691 ✭✭✭fclauson


    Unless VERY well fitted sheet insulation is useless - you can get thermal looping and thermal leakage between joins

    Fitted to manufacturers spec then it's ok but to get the detailing around junctions is hard

    I would suggest 250mm full fill is the best option with

    Make sure the walls are thermally broken from the ground with an airated row or two of blocks

    Get the junctions thermally modelled to make sure they perform


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