limitations of wood epoxy?

Discussion in 'Remodel Forum & Blog' started by LiamM, May 23, 2008.

  1. LiamM

    LiamM New Member

    Dec 13, 2006

    I have 3 windowsills that are rotten. One of them has a hole, about the size of 2 silver dollars, that goes through to the stud cavity. The rest of this windowsill, along with the 2 others, is soft enough to sink in a putty knife about one inch.

    As far as I can tell, the rot was due to letting the paint flake and chip (rather than a water leak). Once I have the repair done, they'll be properly primed and painted.

    Would those wood epoxy hardener/filler kits work in a situation like this, or would I be better off replacing the entire sills? Do the kits strengthen soft wood, or do I have to dig out to solid wood (which in this case, would be digging out most of the sill)? I'm not sure if trying to use an epoxy would just be slapping on a patch and covering up the problem, without actually fixing it.

    Thanks for any feedback
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    I think you have other problems...either the sill wasn't sloped properly or there is a leak in the flashing allowing moisture to get in behind. My guess is that there is more damage there than you can see. It doesn't sound like there is enough left to do a decent repair.
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  4. peter030205

    peter030205 New Member

    May 21, 2008
    I agree with j... There is some other issue to cause that much damage unless these sills are 100+ years old and haven't ever been sealed. With the epoxy you have to dig out to solid wood, the soft wood won't give you a strong enough bond. Probably easier and a better fix to replace all of the sills.
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