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Decking to waterproofed area.

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  1. #1
    1K Club Member Spottiswoode's Avatar
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    Default Decking to waterproofed area.

    Hi all, or upstairs deck of treated pine has had it. Replacing with mod wood as it’s shaded most of the winter and open to the rain. I’m also not a fan of oiling decks annually. Putting the boards on is the easy bit.

    In stripping off the old boards it was nailed to TP battens glued to the waterproofing. I’ll be replacing the battens as well. They are probably 20yo and half have come unstuck from the waterproof layer and aren’t in great condition.

    Not sure, but there appears to be enough fall on the deck to not pool water, but might put the hose on to see what happens.
    43d829e2-41d2-441c-9613-9060a0a72fb9.jpg

    Picture of the battens with decking removed.

    Couple of questions:
    should I redo the waterproofing, it doesn’t leak AFAIK?
    what would I stick new battens on with? Liquid nails or a sikka product
    should I wrap the waterproofing up the sides of the battens or will that trap moisture in the battens rather than allowing it to dry out?
    Measure twice, cut once, trim some off the end, trim some more. Too short. Rinse, Repeat.

  2. #2
    Golden Member havabeer's Avatar
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    Default

    you might not have to.... but you're probably not going to have access to the area again for a while so i would 100% consider doing some new water proofing. consider using gal box section if you're concerned about rot or sealing moisture in.


    if it where me (and this may be wrong) i would:
    remove the old decking.
    clean the whole thing with a pressure washer
    fill any old holes with silicon
    water proof the whole thing with an exterior grade membrane
    screw down some gal box section (angle brackets or top hats)
    water proof over any screws/brackets used into the floor
    attach what ever new decking material you like.
    Remember if you don't sin, then Jesus died for nothing

  3. #3
    1K Club Member Spottiswoode's Avatar
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    Thanks Hava,

    after giving the space a bit of a sweep it still appears in good condition, but definitely going to give it another coat of waterproofing. You are right, it should last another 20y that way.

    Will have to look into gal battens. Being upwind of a saltwater lake, corrosion is a concern so might be better to stick with treated pine. Still considering.
    Measure twice, cut once, trim some off the end, trim some more. Too short. Rinse, Repeat.

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