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Old 03-12-2014, 09:06 PM   #1
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Tile on plywood flooring


Do I need to treat the wood before I add the tile mortar?

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Old 03-12-2014, 09:59 PM   #2
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Tile on plywood flooring


No, you don't.

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Old 03-12-2014, 10:16 PM   #3
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Tile on plywood flooring


OH boy, Tile on plywood? Ceramic tile? How many layers of ply? What type of room, how large?

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Old 03-13-2014, 06:51 AM   #4
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Tile on plywood flooring


Many tile jobs have been laid directly on plywood, and survived fine. But then, some have not survived. It's not the optimal way. Wood expands and contracts with changing humidity, which is not good for the tile setting.

Whether you're applying thinset for tile or for an underlayment such as cement board or Ditra, the "treatment" should be vacuuming, then wiping down with a damp sponge. Not only does this clean out the microscopic nooks and crannies, but also reduces the amount of moisture the wood will wick out of the thinset , which would weaken it.
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Old 03-14-2014, 11:31 AM   #5
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Tile on plywood flooring


It is a 6x10 room that had that one piece of vinyl flooring that I scrapped up. I sanded down to the wood and that is where it sits. I have very nice tiles I want to put down and I want to treat the wood properly but am not sure how. What is the optimal way to do this?
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Old 03-14-2014, 11:58 AM   #6
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Tile on plywood flooring


Can you please answer how many layers of plywood you have and how thick each is? It's very important.

How old is the house, where is it, age of the flooring. Is there a basement or a crawl space? What specific type of tile and size? What type of adhesive were you considering? That's it for now.

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Old 03-15-2014, 12:44 PM   #7
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Tile on plywood flooring


I believe two layers of plywood, there is a crawl space, 1"x2" ceramic tiles, thinset,
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Old 03-15-2014, 02:18 PM   #8
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Tile on plywood flooring


Can you answer the questions that I asked you?

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Old 03-16-2014, 12:44 PM   #9
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Tile on plywood flooring


I am laying down a layer of mold block and then thinset. They are porcelain tiles with a 1/8 grout size. Thank you everyone for your help.
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Old 03-16-2014, 12:56 PM   #10
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Tile on plywood flooring


I understand that porcelain is ceramic, but most DIYers don't, so this sounds strangely inconsistent to me. 1" x 2" tiles? Really? Mosaic maybe?
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Old 03-16-2014, 01:07 PM   #11
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Tile on plywood flooring


Sorry 1' x 2'
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Old 03-16-2014, 01:33 PM   #12
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Tile on plywood flooring


That is a very long tile, and so your floor should be flat.

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