Ceramic over floor with old vinyl floor backing

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Old 08-14-05, 01:37 PM
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Ceramic over floor with old vinyl floor backing

Just moved into a new house and want to remodel the bathroom. The 16 year old Vinyl floor was starting to peal up and I have removed it. Unfortunately, the glue and backing did not come up with the vinyl.

What is my best course of action? Can the tile go onto of the backing material or should I replace the sub-floor? Can I install a new sub-floor or tile backer board on top of the existing sub-floor?

If I install a new backer board on top of the existing, will I have to rework the existing toilet rough-ins?

Thanks for the assistance. It is greatly appreciated.

Scott
 
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Old 08-14-05, 06:24 PM
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If there is a 1/4" sheet of wood that the vinyl was stuck to that has to come out also, it will present many problems and no benefitts to a tile installation. Best way is to cut it into 2' squares with a circular saw and then lift with a prybar. What is left after you take that up? Can you tell what the size and spacing of the floor joists are and what their unsupported span is? Need to know to see if floor is stable enough for tile.

There are flange extenders and double wax rings that you can use.
 
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Old 08-15-05, 10:36 AM
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On the bathroom I'm about to take on, I haven't seen the subfloor yet but I'm guessing it looks like the kitchen did. 1/4" SF with about 10 nails per sq ft. With all the nails, I doubt I could use a circular saw. What problems are created if I just put cement board over the SF? (Other than the height of the floor)
 
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Old 08-15-05, 04:39 PM
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What's SF?
 
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Old 08-16-05, 06:34 PM
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Well, I have a 1/4" subfloor on 2x10 joints at 16" OC. Only had one layer of vinyl.. (thankfully)

Area is approx. 3'x6.5' ... small bathroom.

Thanks for the assistance!!
Scott
 
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Old 08-17-05, 05:33 PM
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NO way you have just a 1/4" subfloor, and if you do have any 1/4" layers of wood, it has to go.
 
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Old 08-17-05, 05:44 PM
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well, i guess the subfloor is more like 1/8".. it is the standard thickness for just about every subfloor I've seen. there is one layer, nothing else. The house is a standard, two story, builder spec house built 16 years ago.

the problem with this subfloor is the backing of the vinyl tile is still glued onto it.

thanks!
 
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Old 08-18-05, 06:14 PM
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I would remove the 1/8" wood and replace with Cardboard, should be stronger, what do ya think?
 
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Old 08-18-05, 06:49 PM
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Cardboard???

mmm, no
 
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