Forum Title: Proper Subfloor Preparation For Tile
I'm putting down 12 tile on a 3/4 plywood over 16OC joists and would like to know if using Ditra means the additional layer of 1/2 is not needed. I use to use an additional 1/2 plywood topped with a layer of Kerdi, but that was a number of years ago before Ditra hit our market-I've been out of the loop for a few years. Looking for a solid install-thanks!
Category: Tile Post By: RHONDA GILBERT (Oakland, CA), 02/05/2019

No. Additional plywood not required if I remember correctly.

- LONNIE ZIMMERMAN (Vineland, NJ), 04/27/2019

Whats the joist size and span? Figure your deflection and go from there. Its all in the instructions.

- FREDERICK LYNCH (Harrisburg, PA), 05/14/2019

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