Timber frame second storey on cavity wall

Discussion in 'Builders' Talk' started by Scott Amos, Apr 7, 2021.

  1. Scott Amos

    Scott Amos New Member

    Hi,

    I am planning on converting our bungalow into a 2 storey house and would like to do it out of timber panels I will construct on site.
    So my concern is the cavity and thermal bridging. My original plan was to fix a ring beam around the inner leaf, strap it down, fix my floor joists to it then build the new walls off the floor joists. However iam realising I can't breach the cavity with the joists.
    So can i close the cavity with an insulated cavity fire sock, dpm on top then my ring beam plate 225mm over the 2 walls, then I can build the new walls in line with the external walls, and the joists can sit on the inner leaf??
    Has anyone else done this? Any suggestions??

    Cheers
     

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