I have seen this in travertine floor tile.
Too much water coming up through the floor. There is something in the fill
that reacts with the water and the one I saw looked the mushrooms growing in
in the floor. I don't think they installed a vapor barrier.
This is a good one for Fred.
[mailto:email@example.com] On Behalf Of Tony
Sent: Thursday, August 18, 2016 12:22 PM
To: Stone And Tile Pros Link <firstname.lastname@example.org>
Subject: Limestone Spalling
Hey pros, does anyone know what causes the type of Spalling. It's only on
the floor at the shower wall tiles are all fine.
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