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  1. #1
    Join Date
    Mar 2008
    Location
    Willunga
    Posts
    3

    Default Cathedral ridgebeam support

    Hi guys,
    long time looker first time poster. Does anyone know how to support a ridge beam at the gable end of a cathedral roof ? I am coming from a traditional roof to cathedral, which i imagine i can fishplate together, but does the other end of the ridgebeam need supporting?
    Someone has suggested a 90mm RHS running inside the wall and the framing can be built around it. You wont see it because it's covered by plasterboard. Oh and this is on a 2 storey house!
    cheers guys

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  3. #2
    Join Date
    May 2003
    Location
    Kuranda, paradise, North Qld
    Age
    62
    Posts
    5,639

    Default

    90mm RHS would probably work but you'll need to consult an engineer for wall thickness and fastening details for top and bottom connections.

    Mick
    "If you need a machine today and don't buy it,

    tomorrow you will have paid for it and not have it."

    - Henry Ford 1938

  4. #3
    Join Date
    Mar 2007
    Location
    Adelaide South Australia
    Posts
    544

    Default

    Don't force it, use a bigger hammer.

    Timber is what you use. Wood is what you burn.

  5. #4
    Join Date
    Jan 2006
    Location
    Melbourne
    Posts
    722

    Default

    My engineer specified RHS for the gable end. Then I attached 90 x 45 to each side so that I could connect the frame work and covered in plaster as you suggested.

  6. #5
    Join Date
    Feb 2003
    Location
    Garvoc VIC AUSTRALIA
    Posts
    11,464

    Default

    depends on whether its a loadbearing ridge or not.
    Regards, Bob Thomas

    www.wombatsawmill.com

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