Tim Healey

Q: I’m retrofitting a curbless shower with a linear drain in an existing home with an I-joist floor. What’s the best way to drop the floor for the mortar bed?

A: Michael Byrne, veteran tile installer and consultant, and moderator of JLC’s ceramic tile online forum, responds: Retrofitting the slope for a tile shower is a common problem for builders. Curbless showers, which have been growing in popularity, present an even greater challenge because of space limitations. A curb allows the slope to be...

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