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Attic Insulation

  • 25-03-2011 6:01pm
    #1
    antlyn
    Registered Users Posts: 102 ✭✭


    Thinking of renewing the attic insulation in my parent's bungalow as the existing is fairly shot. What's best to put in the floor of the attic? Rockwool or fiberglass batt? Or is there another one. I presume to use rigid in between the rafters. Any help appreciated, thanks


Comments

  • #2
    DoneDL
    Closed Accounts Posts: 902 ✭✭✭DoneDL


    put the old insulation between the rafters as its most probably only 4 inch, then crosslay another 8 or 10 inches.


  • #3
    Carlow52
    Closed Accounts Posts: 2,389 ✭✭✭Carlow52


    antlyn wrote: »
    Thinking of renewing the attic insulation in my parent's bungalow as the existing is fairly shot. What's best to put in the floor of the attic? Rockwool or fiberglass batt? Or is there another one. I presume to use rigid in between the rafters. Any help appreciated, thanks

    is the existing attic floored?

    I have just finished a job where I lifted the floored attic and raised the rafters by 6 inches using 3 layers of 2 by 2 rough with 5mm by 100mm screws at 300mm centres.
    i then used a loose cellulose type insulation which u just break up and spread between the rafters and then relaid the floor leaving 5mm gaps for floor to breath. I left the glass fibre.

    All wires were put in conduits and all pipes fully insulated

    There is now about 12 to 14 inches of insulation in total.

    pm if u need a link on the stuff I used


  • #4
    JCFROG
    Closed Accounts Posts: 1 ✭JCFROG


    Hi Everyone, I am a newbie to the forum and interested in Attic insulation (DIY). My attic is already insulated at floor/ceiling level. Is it necessary to to insulate the roof panels? Any response most appreciated.


  • #5
    Quiet you
    Registered Users Posts: 393 ✭✭Quiet you


    JCFROG wrote: »
    Hi Everyone, I am a newbie to the forum and interested in Attic insulation (DIY). My attic is already insulated at floor/ceiling level. Is it necessary to to insulate the roof panels? Any response most appreciated.

    It won't hurt you any but unless it's a habital room there's no point really. The insulation between your joists is doing the work of retaining the heat so any insulation between the rafters will have little to no impact.


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