travertine floors flaking up?

Discussion in 'Misc DIY' started by Tom, Dec 21, 2003.

  1. Tom

    Tom Guest

    Hi, I recently noticed that in some spots my travertine floor
    (exterior and interior) has a white flakey build up in certain spots.
    If I broom it off, it comes back after a few days. Someone told me
    that this is a natural occurence of oxidation in the natural stone. Is
    there anything I can do about it and is it a problem? Thanks.
    Tom, Dec 21, 2003
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  2. Tom

    Roger Guest

    I don't believe it is natural oxidation.
    You might check for moisture under the tiles that show this buildup,
    especially if the rock is installed over a slab base. Travertine is an
    extremely porous and sometimes permeable limestone rock that when in contact
    with a moisture source will wick up the moisture along with dissolved
    sulphate or carbonate salts from the rock itself or from the mortar
    underneath. Efflorescence - look this up! - occurs when these wicked
    solutions hit the air at the surface of the floor, and the evaporation
    causes oversaturation, and the salts precipitate out . One test for
    moisture might be to put a piece of newspaper on the freshly cleaned tile,
    then cover the paper with a weighted piece of glass, then check the paper
    after a week or so. If wet, then you have a seepage problem.
    Roger, Dec 22, 2003
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