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  1. #1
    Join Date
    Jul 2012
    Posts
    1

    Default removing old cantilevered deck joists.

    Just bought a 25 yr old house with a deck that needs replacing. The old deck joists which need to be removed go through the houses brick facade and are presumably attached to the rim joist.

    How do I remove/treat these old deck joists? Do I need to chisel them out and fill the void with mortar or can I cut them off flush and use flashing to prevent water and critter infiltration? My concern with the second method is that eventually the cut off joist will rot away under the flashing providing large accesses to the inner structure that bugs and possibly rodents may use to get inside.

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,736

    Default Re: removing old cantilevered deck joists.

    Go with option 1, but use some house wrap, install some metal mesh (which you can nail into the wood) to hold the mortar, 1 layer of mortar, waterproof and a 2nd layer of mortar, flash with the bricks.

    This way you'll have no water getting inside.

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