I had some water compromise a vanity, leading to its removal. There was a void in the floor where it was originally tiled around, so the entire floor will be retiled.

Upon demolition, I noticed some mold under the old vapor barrier. Having some kilz remaining from another job, I’m considering sealing the floor before putting down the first layer. Is this a good idea or a bad one?

I have already thoroughly sprayed the floor and mold with bleach to kill it.

Pictures for reference, the white area was sealed when I removed the vanity...


one section

section two

  • In the future try not to use bleach. Instead use an actual modicide/fungicide – Matthew Feb 25 '18 at 21:35
  • It certainly won't hurt anything if you "seal" (i.e. paint) it. – Jimmy Fix-it Feb 26 '18 at 0:34

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