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jformanlam

Hairline crack on new marble floor

jformanlam
last month

We recently renovated our primary bath. we installed 12x24 calacatta gold tile about 2 months ago. a few days ago i noticed what looks like a hairline crack exteending along 3 tiles. there is a similar line forming on the opposite side of the room at the same location. i suspect it is along a seam? im concerned about improper installation. the subfloor is 3/4” plywood and schluter membrame. the builder is saying its a scratch.


will this get worse?

does the entire floor need to be ripped up?

how do i convince builder this is a crack?



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