PIR insulation + VCL + OSB3?

Discussion in 'Getting Started FAQ' started by NickTC, Dec 9, 2020.

  1. NickTC

    NickTC New Member

    Hi all

    I'm building a garden room/office inside a single skin building with concrete floor.

    As well as appropriate work on the walls (battens + breather membrane), I have put down DPM + suspended floor joists.

    I've insulated with PIR between the joists (100mm Kingspan), and foamed any gaps—but now I'm stuck.

    I've got 18mm OSB3 T&G to put down.
    • After I tape joints on insulation with alu tape, do I still need a VCL? Or does OSB3 act as VCL?
    • How do I glue the OSB3 to the VCL? (I've got D4 glue)
    • How do I screw the OSB3 to the joists without compromising the VCL? (I've got floortite screws)
    Thanks for any/all help!
     

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