Denray Posted December 11, 2015 Report Share Posted December 11, 2015 My son has put 5/8 plywood down on top of solid decking in his kitchen. Finish floor will be wood like tile. We're wondering if he needs to put cement board down or Red Guard, or nothing at all? Would Red Guard just around the plumbing areas be of any benefit? I have an entry way with tile on plywood and an area upstairs in front of our shower the same way that has held up for 20+ years. What'cha think? Quote Link to comment Share on other sites More sharing options...
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