Subfloor?underlayment for tile floor

king2756 · #1 Nov 13, 2006, 09:23 AM

I'm remodeling a bathroom and have replaced some rotten subflooring (1 x 12 planks). Now I want to install a tile floor. Should I affix cementboard directly to my subfloor or do I need a layer of plywood? Should I use mortar to attach the cementboard to the subfloor/plywood? Thanks!

skiberger · Nov 13, 2006, 09:48 AM

Install 1/2 cement board and use the thinset and trowel that you will use to adhere the tile with. Attatch with the appropriate cement board screws.



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