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  1. O

    Inverted Warm Roof

    A bit of on old thread, but I'm about to build the roof, does anyone know of anyone who as tried this approach ? I know @^woody^ says its common, but are there any statistics?
  2. O

    Hidden Gutter with ventilation

    I cant find construction details on site - https://www.dupont.com/ ? Would you have a direct link pls ?
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    Hidden Gutter with ventilation

    Hi, I'm working on a vaulted ceiling. Currently I was considering, what I think is a cold roof (air gap above insulation), though I like the idea of a warm roof as it mostly eliminates the need for venting. If I stick to the original plan (cold roof) then I'm proposing to build as this...
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    Hidden Gutter with ventilation

    Hi, The wall is built against the boundary and I should not be overhanging the gutter, hence require gutter flush to the wall. Unfortunately I'm unsure how its done. I know sometimes square gutters made from ply and lined with lead are used or use of an aluminium square gutter. I was wondering...
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    Rafters in Ridge Steel beam help

    The Structural Engineer designed the above steel. Collars should not be needed because the steel can support the weight of the load and is fixed on both ends. I haven't drawn the diagram accurately, in reality, I'm putting in 7x2 rafters the rafter length either side is 2m. The bottom of the...
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    Rafters in Ridge Steel beam help

    Thanks for a rapid response! I noticed there's several ways in how these are connected. My preferred option is rafter in the web (as per drawing). The carpenter had a look at it and said its wrong, hence was confused. I dont want the inspector to fail it
  7. O

    Rafters in Ridge Steel beam help

    Hi, I'm having a vaulted ceiling and a Ridge Steel has been fitted. Internally, I want a triangular ceiling. I was wondering how the rafters should be fitted on the steel. I've attached an image with two options. 1. where the rafter fits into web of steel with noggins 2. add a bolted timber...
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    Inverted Warm Roof

    I'm assuming timber is relatively a low thermal conductor, especially a joist which is 150mm ? Not sure how to verify this though - https://www.australply.com.au/technical/thermal-properties
  9. O

    Inverted Warm Roof

    Thanks for your help. What should be the roof called if not an 'inverted warm deck'?
  10. O

    Inverted Warm Roof

    Can I make a few small holes for light fittings in the vapour barrier ?
  11. O

    Inverted Warm Roof

    Hi, I want to keep the roof height to a minimum and thus planned to install a cold roof rather than a warm roof. Because this requires venting, which can be problematic, the inspector suggested an 'inverted warm deck' / hybrid. The cold roof plan was to put in 100mm of insulation between...
  12. O

    Structure for Gable window

    Thanks for the above, appreciated. There is no details other than what the OP. I wil try to find a SE today.
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    Structure for Gable window

    Hi Notch7, I agree on the two options, either a cranked steel or steel post between ridge and patio doors. I'm favouring cranked steel option. I've updated image, is this what you mean by a crank steel (in red) - The Orange line indicates a thinner steel section to preserve sight lines. The...
  14. O

    Structure for Gable window

    The architect designed the entire extension which is almost built, including the flat roof section. Unfortunately, not much detail was provided for the gable. I know, its not good though I have asked for the detail I think the architect cannot deliver :(
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    Structure for Gable window

    Yes a vaulted ceiling. The plans have a 75mm x 225mm ridge beam. (I've added plan drawing to my post, though it lacks the details)
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    Structure for Gable window

    I’m having a single storey extension built and have query about the structure required for a gable window. There are two glazed areas, triangular piece of glass for gable and doors below. I would like to keep the horizontal bar between the top glazed section and the doors to a minimum height for...
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    Rafters meeting flat roof section, how to fix.

    @tony1851 - Hi Tony, just wondering if you could help me out on the above query and if the 2No 6x2 is adequate. I dont know the load but the tiled section area is 2700 x 1740
  18. O

    Rafters meeting flat roof section, how to fix.

    @noseall Do you think the 2No 6x2 provides adequate support or should the size be changed (its a 2.7m span)?
  19. O

    Rafters meeting flat roof section, how to fix.

    The flat roof is supported by several timbers at 450 centres running parallel to the 2No 2 x 6. So there shouldn't be much weight from the flat roof?
  20. O

    Rafters meeting flat roof section, how to fix.

    Do you mean like this new image (it still has offset though)
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