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warm floor ( like a warm flat roof )

  • 26-04-2020 4:58pm
    #1
    RobAMerc
    Registered Users, Registered Users 2 Posts: 5,863 ✭✭✭


    all - I was wondering if there is a reason no one builds a "warm floor" construction similar but exact inverse of a warm roof.

    Basically, what I am talking about is strapping the PIR insulation to the underside of the floor frame

    Is this as stupid an idea as it sounds ? I am sure there are 10 good reasons no one does this, but I'd like to know what they are.


Comments

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


    On a new build?

    Because you'd have cold bridges at the base of all the internal walls, so it's better to use an insulated slab.


  • #3
    RobAMerc
    Registered Users, Registered Users 2 Posts: 5,863 ✭✭✭RobAMerc


    sorry no, I mean on a wooden frame for a wooden room/shed

    I was thinking, if a warm roof stops cold bridges through the roof joists - wouldnt it do similar for the floors joists ?


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


    The same logic applies to a shed as it does to a house.

    You can insulate a slab or a suspended floor, but the perimeter details and threshold heights will vary depending on your choices and how far you want to go.


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