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  1. C

    Attic loft floor insulation U value

    Based on the warm roof scenario, can i still use 150mm pir to insulate the roof space?
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    Attic loft floor insulation U value

    Ok thanks and clear now. For the floor area, I'll go forth with 150mm PIR board. Some earth wool making sure a slither of gap is available for air flow, with 22mm caber board flooring ontop.
  3. C

    Attic loft floor insulation U value

    I have to say it's confusing because if you look at the regs for loft floors it indicates a minimum 270mm depth is needed for say earthwool or 150mm for PIR board. Why do the regs look for such thicknesses if it's not a physical requirement in reality ?
  4. C

    Attic loft floor insulation U value

    Are you saying the roof insulated properly would be more than sufficient and heat all the loft space and no need to worry on heat transfer from the room below? Thanks G
  5. C

    Attic loft floor insulation U value

    It's a heated room (bungalow ground floor)
  6. C

    Attic loft floor insulation U value

    Hey Derek, the job at hand is to insulate the attic space as a whole e.g the floor which is what i will do first and followed by the roof space as step 2.
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    Attic loft floor insulation U value

    Apologies for the typo on the measurements Robin, and this sounds like logical advice for me to take onboard and Thank you!
  8. C

    Attic loft floor insulation U value

    I recently changed the floor joists in my new attic from 3 inch to 8 (200mm) and would like to insulate it to current regs standard for insulation. If i search online it states the minimum requirement is 750mm of insulation, which i assume to be earthwool. As i cannot increase the height of...
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