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Imported timber VS Native Timber for house roof

  • 17-05-2007 9:31am
    #1
    thekooman
    Registered Users, Registered Users 2 Posts: 1,221 ✭✭✭


    hi all,
    currently in the process of getting quotes for our self build roof.

    am seeing that some providers deal with imported timber and others native timber. some people say that we should go with imported but my roofer sees no difference between the 2. there is a price difference of about 800 euro between the 2; imported been more expensive obviously.

    any advice would be good? should we spend the couple of hundred extra euro on the imported?


Comments

  • #2
    thekooman
    Registered Users, Registered Users 2 Posts: 1,221 ✭✭✭thekooman


    can be moved to the Self build forum if need be!


  • #3
    galwaytt
    Registered Users, Registered Users 2 Posts: 12,822 ✭✭✭✭galwaytt


    in my experience, the majority of native timber (non-structural) is C16, which is 'sufficient' for your roof construction. Most timber C18 or higher, is imported. The main difference on-site, is that imported timber is usually drier, straighter and has less knots, and can have a nicer finish - good to handle.

    My own preference is for pressure-treated timbers too, and wall plates and eave details need to be properly treated to prevent damp issues.

    In either case, make sure your timber is dried - and kept dry on site.

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  • #4
    Mellor
    Registered Users, Registered Users 2 Posts: 39,901 ✭✭✭✭Mellor


    Your roofer said there was no difference?
    Most people working with structural timbers should be aware of the grading system.
    Imported timber gets a higher grade, from visual inspection.

    It may be more expensive, but bear in mind that because it is a higher strength grade, it might be possible to use smaller sections or further spacings when using imported wood. So over-all it might be cheaper? as the wood could be smaller or less of them, the latter would also reduce labour costs


  • #5
    kadman
    Moderators, Home & Garden Moderators Posts: 5,126 Mod ✭✭✭✭kadman


    Just for your roofers benefit, here is the link to timber design tables, showing all the structural timber grades from c14,s upwards, both gs and ss.

    http://www.woodspec.ie/woodspec/ieindex.htm

    kadman


  • #6
    newhouse87
    Registered Users, Registered Users 2 Posts: 2,747 ✭✭✭newhouse87


    bump, anybody done this recently?


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