On Sunday, April 16, 2017 at 11:08:50 PM UTC-5, -MIKE- wrote:
On 4/16/17 10:42 AM, Michael wrote:


My first use is to help me take out the OSB from under the linoleum
in the bathroom before I install 3/4 plywood, backer board, and
tile. After much consultation,I've decided not to take out the vanity
and to install tile around it. I'd be curious what others think
about that. That vanity is in there pretty good.


Nothing wrong with that. No need to create extra work by removing and
reinstalling the same vanity just so you can say you tiled under it.

Is there a reason you're taking out the OSB? If it's sound, there's no
reason to. As for backer board, you may want to look into Schluter
products. It's now carried at most home Depots.


Next I'm going to take out the carpet and OSB in the front room and
install 3/4 plywood, backer board, and tile. I assume the
oscillating tool will be very helpful there as well.

Front room? Is this a living room or part of the bathroom. There's no
need for cement board under tile that won't be subjected to constant
moisture. All you need is to decouple the mortar from the wood
subfloor. That can be done old-school with simple tar-paper, or using
more modern sheet products.

Mike,

I've asked the tile store people and others about using OSB and a backer board. They all insisted that I take out the OSB and put in 3/4 plywood. I would prefer to put cement board over the OSB, of course, but if it will prevent failure, then I'll replace the OSB.

The front room is the living room. It's currently has carpet over OSB. I had plan to take out the OSB and replace it with plywood and backer board, then tile. Again, that's because I'm told that's how to do it.

Thanks,

Mike