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Alternative to Polystyrene - as an internal insulant

  • 24-11-2020 10:29pm
    #1
    adrian92
    Registered Users, Registered Users 2 Posts: 566 ✭✭✭


    HI all,

    Any idea what I can use to insulate internal concrete?

    (I removed the polystyrene sheets, which were great - because I was told that not good if a fire)

    Is there a safe equivalent of the polystyrene sheets?


Comments

  • #2
    listermint
    Registered Users, Registered Users 2 Posts: 34,106 ✭✭✭✭listermint


    adrian92 wrote: »
    HI all,

    Any idea what I can use to insulate internal concrete?

    (I removed the polystyrene sheets, which were great - because I was told that not good if a fire)

    Is there a safe equivalent of the polystyrene sheets?

    Internal as in where. Cavity ? Or internal wall ?


  • #3
    Calahonda52
    Registered Users, Registered Users 2 Posts: 12,593 ✭✭✭✭Calahonda52


    was it not covered with plasterboard?

    “I can’t pay my staff or mortgage with instagram likes”.



  • #4
    _Brian
    Registered Users, Registered Users 2 Posts: 18,625 ✭✭✭✭_Brian


    High density insulated boards are a very safe certified product to use in Ireland.

    In the event of a fire they are separated from the fire by the plaster board and a layer of skim coat. If your in the fire long enough for it to burn through these and get to the insulation your already dead from the fumes of burning furniture etc.


  • #5
    adrian92
    Registered Users, Registered Users 2 Posts: 566 ✭✭✭adrian92


    listermint wrote: »
    Internal as in where. Cavity ? Or internal wall ?

    Sorry. I was not clear. The sheets were glued to a concrete roof , on the inside


  • #6
    adrian92
    Registered Users, Registered Users 2 Posts: 566 ✭✭✭adrian92


    _Brian wrote: »
    High density insulated boards are a very safe certified product to use in Ireland.

    In the event of a fire they are separated from the fire by the plaster board and a layer of skim coat. If your in the fire long enough for it to burn through these and get to the insulation your already dead from the fumes of burning furniture etc.

    Thanks, Brian.
    I shall follow up on your advice


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  • #7
    10-10-20
    Registered Users, Registered Users 2 Posts: 7,547 ✭✭✭10-10-20


    These, for example.
    https://brooksonline.ie/quinn-therm-2400mmx1200mm-floor-roof-insulation-40mm-um6323

    You need to decide on how to afix the product. Low-expansion foam might be easiest.


  • #8
    WildCardDoW
    Registered Users, Registered Users 2 Posts: 847 ✭✭✭WildCardDoW


    10-10-20 wrote: »
    These, for example.
    https://brooksonline.ie/quinn-therm-2400mmx1200mm-floor-roof-insulation-40mm-um6323

    You need to decide on how to afix the product. Low-expansion foam might be easiest.

    What about securing to batons, some plasterboard fixings to be safe.

    Or else in between the studs.


  • #9
    GreeBo
    Registered Users, Registered Users 2 Posts: 27,253 ✭✭✭✭GreeBo


    If they are on a concrete roof you need mechanical fixing so they dont fall on your head during a fire (or at any other time!)


  • #10
    sunnib
    Registered Users Posts: 30 ✭sunnib


    Hi,
    just a note to consider - rolls of sheep wool (as kind of a fleece, not felted) are best to insulate according to a list of any insulating materials available (can't remember where I read this, sorry -) probably a bit more costly, but definetly eco friendly :)


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