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Insulating small attic above bay window

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  • 20-02-2019 12:19am
    #1
    ravendude
    Registered Users Posts: 584 ✭✭✭


    Insulating small attic above bay window..
    Is this an easy enough job go get done and not too costly? Presuming the plaster board would need to be pulled off. Would replacing the plaster ceiling be messy?

    Is mineral wool the right things to pack in here (how to retain it if packing from below)? Or even fill it with spray foam??


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    #2
    JimmyMW
    Registered Users Posts: 695 ✭✭✭JimmyMW


    ravendude wrote: »
    Insulating small attic above bay window..
    Is this an easy enough job go get done and not too costly? Presuming the plaster board would need to be pulled off. Would replacing the plaster ceiling be messy?

    Is mineral wool the right things to pack in here (how to retain it if packing from below)? Or even fill it with spray foam??

    Is the roof of the bay a slate or tile roof?


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    #3
    ravendude
    Registered Users Posts: 584 ✭✭✭ravendude


    JimmyMW wrote: »
    Is the roof of the bay a slate or tile roof?

    It would be concrete tiles, like a small/mini pitched roof. Tiles are flat like slates if that matters


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    #4
    JimmyMW
    Registered Users Posts: 695 ✭✭✭JimmyMW


    ravendude wrote: »
    It would be flat concrete tiles, like a small/mini pitched roof

    Probably easiest to remove a few of the concrete tiles, cut the felt and blow in insulation from the outside, repair and re-seal the felt and reposition the concrete tiles again.


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    #5
    ravendude
    Registered Users Posts: 584 ✭✭✭ravendude


    JimmyMW wrote: »
    Probably easiest to remove a few of the concrete tiles, cut the felt and blow in insulation from the outside, repair and re-seal the felt and reposition the concrete tiles again.

    Sounds like a good plan, thanks!


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    #6
    sydthebeat
    Subscribers Posts: 41,071 ✭✭✭✭sydthebeat


    JimmyMW wrote: »
    Probably easiest to remove a few of the concrete tiles, cut the felt and blow in insulation from the outside, repair and re-seal the felt and reposition the concrete tiles again.

    what do you do with the condensation and moisture ?


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    #7
    JimmyMW
    Registered Users Posts: 695 ✭✭✭JimmyMW


    sydthebeat wrote: »
    what do you do with the condensation and moisture ?

    I'm assuming the space is already vented at the soffit as usual, also I'm not suggesting to fill the space with insulation.


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    #8
    sydthebeat
    Subscribers Posts: 41,071 ✭✭✭✭sydthebeat


    JimmyMW wrote: »
    I'm assuming the space is already vented at the soffit as usual, also I'm not suggesting to fill the space with insulation.

    you will have to ensure the blow in insulation does not cover the vents and / or prevent cross ventilation.


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    #9
    antiskeptic
    Registered Users Posts: 9,555 ✭✭✭antiskeptic


    ravendude wrote: »
    Insulating small attic above bay window..
    Is this an easy enough job go get done and not too costly? Presuming the plaster board would need to be pulled off. Would replacing the plaster ceiling be messy?

    Is mineral wool the right things to pack in here (how to retain it if packing from below)? Or even fill it with spray foam??

    Sometimes the bay ceiling is higher than the main ceiling in the room. In that case you could screw some insulated plasterboard onto the current ceiling (through the existing plasterboard and into the bay joisting.

    Skim to finish. A days work without too much mess for someone, roundabouts?


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    #10
    MicktheMan
    Registered Users Posts: 2,825 ✭✭✭MicktheMan


    ravendude wrote: »
    Insulating small attic above bay window..

    Why you doing this?


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