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Wall insulation

  • 29-10-2006 5:04pm
    #1
    alred
    Closed Accounts Posts: 16 ✭


    I will be starting to build a new house early next year and have been presented with 3 options for isulating the walls:

    1. Block, 150mm cavity full filled, block

    2. Block, 100mm cavity, full filled , block with 50mm insulated plasterboard on the interior.

    3. Block, 100mm cavity, full filled, 300mm Quinn-Lite blocks on the inner leaf and plasterboard.

    Insulation will more than likely be ecobead platinum.

    Any advice on these options would be appreciated from a cost & insulation point of view.


Comments

  • #2
    Mellor
    Registered Users, Registered Users 2 Posts: 39,902 ✭✭✭✭Mellor


    In option 3, is the plaster board going to be 50m insulation backed.
    And what is your thinking behind the 300mm inner leaf


  • #3
    Viking House
    Registered Users, Registered Users 2 Posts: 551 ✭✭✭Viking House


    alred wrote:
    I will be starting to build a new house early next year and have been presented with 3 options for isulating the walls:

    1. Block, 150mm cavity full filled, block

    2. Block, 100mm cavity, full filled , block with 50mm insulated plasterboard on the interior.

    3. Block, 100mm cavity, full filled, 300mm Quinn-Lite blocks on the inner leaf and plasterboard.

    Insulation will more than likely be ecobead platinum.

    Any advice on these options would be appreciated from a cost & insulation point of view.

    With each of these systems the major heatloss area is where the walls meet the floor.
    The heatloss is about 25% less for the same U-value when you use denser insulation than polysterene.
    Did you consider plastering directly onto external insulation like they do in most of Europe and Scandinavia?


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