Porcelain Tile Question & Help Needed

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Old 01-13-14, 04:36 PM
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Porcelain Tile Question & Help Needed

Live in SC and bought a home that is on a concrete slab. Dining area and kitchen area have a floating wood floor that I want to take up and replace with porcelain tile. After pulling up the floating floor in the Dining area, I found it was covered with plastic sheeting. Under the sheeting is a brown colored adhesive. I think this area was carpeted at some point and this is a carpet adhesive. The rest of the kitchen is concrete slab. QUestions I have: Can I put down a backerboard over the adhesive area and if so, what type of adhesive would I use? Or, do I need to remove the adhesive before laying the tile?? Thank you for your help.
 
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Old 01-13-14, 04:58 PM
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You will need to get as much of that adhesive up as possible. Is the adhesive still pliable or is it stiff as a rock? It may be safe to go with a decoupling membrane like ditra which will at least spread out any questionable areas over a larger footprint. Adjoining tiles will help steady any tiles over subject areas and the layers of mortar in the ditra will lend rigidity to the install.
 
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Old 01-14-14, 05:24 AM
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Thanks czizzi. The adhesive is pretty stiff. So I figured I was going to have to get it off the concrete. Thinking of renting a tool from HD to grind it off. I appreciate your reply.
 
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