Installing Tile on Concrete floor


Old 01-02-02, 06:56 AM
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Question Installing Tile on Concrete floor

If installing tile in my basement (no moisture, new home) on the floor of my wetbar area, would I need to put down the concrete backer?

I haven't gotten too involved with this yet but from first appearances the floor is free from cracks and "looks" level.

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Old 01-02-02, 10:36 AM
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Hey Tim,
On concrete, no need for Backer units. If it is relatively "flat" (not too many undulations in the slab) You should be able to get out the 3/8" trowel and go to town. I always wash concrete with good clean water and let it dry, before I start. (you will be amazed at how much fine dust you wash away, and thin-set does not like dusty concrete!) If you come across a crack in the slab you should cover it with some crack isolation membrane before setting tile over it. (the crack will transfer to the tile, especially new homes that have not done all there settling.)Come back and some one should be able to explain how to install membrane. (if I'm here I will)
Rich Gately (Tileman1)

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