Hire the best Home Extension Experts

Adjustable collar ties

Results 1 to 4 of 4
  1. #1
    Senior Member
    Join Date
    Sep 2007
    Location
    Country West Oz
    Age
    75
    Posts
    316

    Default Adjustable collar ties

    My daughter's house as a problem with the walls spreading apart due to the weight of the solar hot water system on the roof.
    I have checked in the roof space and there are no collar ties in that section of the pitched roof.
    I don't think that this can be easily reversed, but what I am proposing to do is fit some steel adjustable collar ties and wind them up as tight as possible, and hopefully this would stop the problem from getting any worse. As there are no internal walls in this area to support the roof, my idea seems to be the only reasonable fix.
    My problem is that I have been unable to source these adjustable collar ties.
    Is anyone able to advise where they might be available in Perth.
    Thanks in advance
    Regards Bradford

  2. #2
    Resigned SilentButDeadly's Avatar
    Join Date
    Sep 2006
    Location
    Not here...
    Posts
    5,155

    Default

    Bradford...why not use some strapping steel (or cable) and some turnbuckles to make some up? I'm thinking something like 40x2 flat bolted across with a turnbuckle at one end. Wind it up incrementally and lock it off...
    Joined RF in 2006...Resigned in 2020.

  3. #3
    3K Club Member
    Join Date
    Jun 2012
    Location
    Sunshine Coast
    Posts
    3,725

    Default

    I have done this before, here is what I did.

    I used 50x8 flat plate to form a u section approx 400mm long with 15mm holes drilled 50 from the end and a 15mm hole in the u section to take the 15mm threaded rod.

    After bolting the plates to the rafter as low as possible to the top plate with 15mm hitensile hex bolts and nuts, I used a comealong, chainblock type of lifter/puller to pull the rafters together as far as possible then bolted the

    15mm threaded rod through both plates and tightened until firm, then I released the comealong.

    I fitted these to 8 rafter which for memory were spaced at 900 centres and I also fitted timber packers under the threaded rods just in case someone decided to stand on them while in the ceiling space.

    Please understand this was in the days pre red and green sheds, pre almost anything, when you had to make do with what you had, so was it over engineered, probably, who knows, but I do know very little ever failed due to

    over engineering.

    If you are not in a position to manufacture the brackets yourself, I am sure an engineering/steel fabrication shop would be able to.

    Hope this helps.

  4. #4
    Senior Member
    Join Date
    Sep 2007
    Location
    Country West Oz
    Age
    75
    Posts
    316

    Default

    Thanks for the input it gives me a couple of other ideas to think about.
    There is no doubt about it fresh minds look at things from a different angle and can come up with ideas
    I would have never thought of.
    Regards Bradford


Similar Threads

  1. Collar Ties
    By Grayum in forum Structural Renovation
    Replies: 3
    Last Post: 4th Nov 2009, 06:31 AM
  2. collar ties
    By bilrob in forum Roofing
    Replies: 3
    Last Post: 3rd Jul 2009, 10:20 PM
  3. Removing Collar Ties
    By LindaC in forum Roofing
    Replies: 14
    Last Post: 29th Jun 2008, 01:01 PM
  4. Collar Ties Revisited
    By Mcblurter in forum Structural Renovation
    Replies: 4
    Last Post: 17th Aug 2006, 12:23 PM
  5. Moving collar ties
    By Mcblurter in forum Structural Renovation
    Replies: 5
    Last Post: 14th Aug 2006, 02:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •