Underlayment before ceramic tile


Old 02-16-02, 08:39 AM
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Underlayment before ceramic tile

Im planning to put ceramic tile in myself. I tore up all the old flooring and underlayment that was there previously. What's left is the wood floor plank's. I asked the tile man that helped me with my material's if I needed to put down clean plywood underlayment or could I tile over the plywood plank's. The plank's arent very clean they have a coating of some sort on them that was left by the old hard lenolium that look's like it's been here since the house was built which was in the late 40's. So therefore I thought I would get a second opinionfrom one of these great expert's on DIY.com. Oh yeah the plywood plank's are very squeeky. Would that make my tile crack when walked over.
Old 02-16-02, 03:35 PM
Join Date: Aug 2000
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Installing ceramic tiles

Go to www.doityourself.com/ceramic for helpful info. Subfloor problems should be addressed. A concrete underlayment is the preferred underlayment beneath ceramic tile. Any movement in subfloor or underlayment will cause grout failure and possibly cracked tiles.

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