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Old 04-18-2007, 01:58 PM   #1
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vinyl backing stuck to plywood


Greetings from shotdown!
Plan: replace existing 5'X9' split-entry flooring with tile.
currently, vinyl is up but backing stuck to subfloor.
?? What are my options to get the backing off the subfloor?
I'm using a scraper until I hear otherwise...this could be tedious.
Thanks for all helpful tips!
Shotdown

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Old 04-18-2007, 02:23 PM   #2
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vinyl backing stuck to plywood


You pretty well have it figured out. Use a scraper or pull up the plywood subfloor and replace it.

You could (in theory) tile over whats left as long as it's fairly flat, using the thinset (NOT mastic) to fill in minimal low spots...and it could (in theory) last a very long time like this, but it would be better to get all the way down to plywood if you can.

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Old 04-18-2007, 02:38 PM   #3
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vinyl backing stuck to plywood


Thanks for the response. JP In addition, I'm looking carefully at the plywood thickness. Initially the subfloor appeared to be two layers of plywood however It now appears to be a single 1/2" plywood with possibly only a 3/4" stop gap "Piece" below. The 3/4" "piece" is located above the top riser leading from the lower floor to the split-entry landing. If this is the case, I may likely not have enough structural strength for tile and may have to rip the 1/2" out and replace with a new 3/4" piece. Not forgeting to adjust if possible for the difference in thickness. Any thoughts about this?
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Old 04-18-2007, 04:14 PM   #4
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vinyl backing stuck to plywood


Sounds like you're well on your way .

If the 1/2" ply is in good shape, you can just put another layer of marine grade 1/2" plywood over it, then durock or ditra, then tile.

The rock should be layed in thinset and screwed to the plywood only, not the joists, if at all possible.

Good luck. Come back with any problems along the way.

Last edited by jproffer; 04-18-2007 at 04:17 PM.
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Old 04-18-2007, 04:58 PM   #5
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vinyl backing stuck to plywood


Decisions, decisions,
It's looking more likely that I have two layers of plywood. 1/2" over 3/4". I posted another question along the way see: 5X9 entry tile job.
Anywho, I have to keep careful track of all these different layers and their respective cumulative total height. I'm talking a split-entry landing/foyer-meaning I don't want to be raising doors, cutting off door bottoms, shortening risers....etc too much. It could get ugly real fast. That's why I wrote the other post.
Thanks for the help!
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Old 04-18-2007, 06:17 PM   #6
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vinyl backing stuck to plywood


No need for marine grade plywood and shouldn't be used if using a membrane that needs to be adhered to the floor, you should have Ext. grade AC or BC plywood for a subfloor for tile.
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Old 04-18-2007, 07:05 PM   #7
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vinyl backing stuck to plywood


Quote:
Originally Posted by R&D Tile View Post
No need for marine grade plywood and shouldn't be used if using a membrane that needs to be adhered to the floor, you should have Ext. grade AC or BC plywood for a subfloor for tile.
R&D - Glad to see you answering all these tile questions on the forum....
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Old 04-18-2007, 07:11 PM   #8
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vinyl backing stuck to plywood


No problem, got borred.

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