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replacing sills on sash windows

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  1. #1
    Apprentice (new member)
    Join Date
    Jul 2007
    Location
    Bayswater WA
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    7

    Default replacing sills on sash windows

    help.

    We have an old weatherboard (1904) with double hung sash windows. two of these windows at the front of the house have rotten window sills on the outside.

    someone has covered them with sheetmetal in the past but they need replaced.

    Can anyone out there thell me how best to do this???

  2. #2
    Novice
    Join Date
    Jul 2006
    Location
    Raymond Terrace
    Posts
    30

    Default

    Quote Originally Posted by bit stressed View Post

    Can anyone out there thell me how best to do this???
    The window sills are the foundation on which the frames are built.Thus they really cannot be replaced without rebuilding the frames. Chances are that if the sills are rotted you will have problems with the sashes as well. So in short ..... New windows !!!!
    Every hour, every day I'm learning more
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  3. #3
    Senior Member
    Join Date
    May 2007
    Location
    Darwin NT
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    116

    Default

    Hi
    As and apprentice carpenter in the early 60's I must have done dozens.

    We had in those days the benefit of a heck of a lot of stock mouldings for sills etc. Also we had a machine shop where we could easily make up new sections, that is the thing, if you have to buy or pay someone to make your sections then maybe Tool-Horder is right.

    Never came across one that needed supporting in place once the sill was removed, they just held themselves up.

    Usually we cut the last few inches off the jambs as well as they were rotten too. Cut out the old stuff with beveled cuts that angle down from the inside to the outside, both ways, so the new is weathered. (that is the water runs off the joint not into it.

    Use oil base paint (we used red lead primer) and putty to make the joints.

    I have a small page about repairing doors the same way, not got round to windows yet.
    http://www.builderbill-diy-help.com/...pair.html#toc2

    Cheers
    Bill.

  4. #4
    Apprentice (new member)
    Join Date
    Jul 2007
    Location
    Bayswater WA
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    7

    Default

    thanks for your help .

    I think I'll pull the windows out and have a crack at trying to repair them

    Cheers

  5. #5
    Novice
    Join Date
    Jan 2008
    Location
    Melbourne
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    22

    Default

    Thank you for the site. More interesting information.

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