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  1. Bagheera

    Proper Tyvek housewrap & flex wrap installation

    Thanks. I cut them out today, wrapped round and stapled on the internal side. Photos on my project thread: https://www.diynot.com/diy/threads/insulated-timber-framed-garden-room.474157/page-3#post-4000414
  2. Bagheera

    Insulated timber-framed Garden Room

    Sub deck on with vapour barrier which keeps the roof reasonably watertight Cut out windows with reciprocating saw, tyvek house wrapped, taped and windows cut out internal:
  3. Bagheera

    Proper Tyvek housewrap & flex wrap installation

    I suspected as much. Do you use the tyvek flexwrap on the bottom? Anything else I should know?
  4. Bagheera

    Proper Tyvek housewrap & flex wrap installation

    Hi all, My timber framed garden room now has tyvek house wrap on the exterior and I need to cut out the window holes and flash them properly. The way to do it in the US seems to be to cut the house wrap flush with the edges of the window holes and use flex wrap on the bottom cill wrapping 6...
  5. Bagheera

    What soffit material will accept external downlights

    Ah, I'd not though of the heat aspect with uvpc. Thanks.
  6. Bagheera

    What soffit material will accept external downlights

    Hi all, I'm building a garden room with a 60cm or so overhang at the front which I want to have a few downlights set in the soffit. Please could someone tell me what materials would suit having holes cut in and be strong enough to have downlights installed. Is 10mm hollow uvpc soffit okay for...
  7. Bagheera

    Insulated timber-framed Garden Room

    Few more pics taken with wide angle lens
  8. Bagheera

    Flat warm roof- VCL needed with celotex?

    Thanks everyone. Super fast! I'd forgotten about my downlights which would go through a VCL below joists so making it a bit useless. Great shout to mark out my top 11mm with joist positions and number them and their position before I put insulation on. Not thought of that either. Already got...
  9. Bagheera

    Flat warm roof- VCL needed with celotex?

    Thanks for the reply Notch7. It's detached from the house and I'd not thought about how it may be cooler inside than out, though I doubt cool enough for warm water vapour to condense? That said I'm sure the EPDm is vapour proof so that wouldn't be an issue though I take your point about taping...
  10. Bagheera

    Flat warm roof- VCL needed with celotex?

    Hi all, I'm building a timber framed garden room with a flat warm roof. my build up for the roof will be: joists 18mm OSB3 sub-deck vapour control layer 100mm foil backed celotex GA4100 or similar 11mm OSB3 top deck EPDM My questions are: 1. Do I need a VCL considering the foil on the...
  11. Bagheera

    Insulated timber-framed Garden Room

    A few more pics on progress. I went for 225 x 47mm for roof joists. Getting on with the warm flat roof now...
  12. Bagheera

    Insulated timber-framed Garden Room

    Well, the gf's nigh on at midget status but I'm sure she'll want to use a full sized door nonetheless. That's my access point to get in and cut out the doors and windows when all squared up Also it would have served no structural role unlike the board above it so I decided to cut the last bit to...
  13. Bagheera

    Insulated timber-framed Garden Room

    First two walls are up. After framing them on the floor, I screwed them down through the ply when they were squared up and then sheathed them with 11mm OSB3 so they were rigid. Studs etc made from 100 x 47 (95 x 44mm) and headers made from 2x6/150 x 47 (145 x 44) though added an extra bit to the...
  14. Bagheera

    Insulated timber-framed Garden Room

    Some more progress to report. I went back a step and removed the frame from the blocks and mortared the blocks together and built a retaining wall on the rear side where the earth was higher. I placed DPC on the blocks, put the frame back on, squared it up and screwed it together and added all...
  15. Bagheera

    Insulated timber-framed Garden Room

    First video, as promised. Just over 6 minutes long, the second half is the most entertaining:
  16. Bagheera

    Insulated timber-framed Garden Room

    Planning permission now granted! I can now go to 3m in height. Here are the drawings I submitted:
  17. Bagheera

    Insulated timber-framed Garden Room

    That could work, I'm a bit scared of splitting/cracking the blocks, though I suppose I do have spares. May go back and use construction adhesive between the blocks too.
  18. Bagheera

    Insulated timber-framed Garden Room

    Yeh, I got a housmemate or two to help get them in position they just need screwing together and the whole thing squared. Not sure!-I'd like to attach them but no sure how the best way would be, suggestions?
  19. Bagheera

    Insulated timber-framed Garden Room

    Hello, it's been a while I know, I was away for a couple of weeks and it was too hot to do anything a couple of weeks back but the project is still alive and kicking. I did however have a big change of heart regarding the foundations. The expense, difficulty and coordination involved with...
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