You would be better of removing the plywood floor completely - and tiling over the original surface.
No, plywood alone is not strong enough for ceramic tile. These floors require a very sturdy subfloor at least 1 1/4" thick before the tile. This requires either using cement board or a pored mudbed.
If you are installing a floating laminate floor, you can easily put it right over the tile.
Remove the laminate floor first
You would be putting a permanent floor over a temporary floor & that would not be wise. Might work but if it doesn't you lose it all...
You would be better of removing the plywood floor completely - and tiling over the original surface.
Improper installation. You must install cement board over the sub floor before you tile. If the tile was glued to plywood which is not waterproof, the plywood will absorb moisture which will cause the grout to crack and deteriorate
you have to pull the linoleum up to lay tile. . .i would suggest a cement backer board over the existing plywood also
No, plywood alone is not strong enough for ceramic tile. These floors require a very sturdy subfloor at least 1 1/4" thick before the tile. This requires either using cement board or a pored mudbed.
If you want to raise a sagging floor, you can put a piece of plywood on the floor. You can then add new flooring over the piece of plywood.
I don't recommend it. The plywood is flexible and bends over time. Cover the plywood with Hardi Backer board first. Available in the tile department at Lowe's and Home Depot. Get the right screws for it. It's easy to install, comes in manageable size of 3 feet by 5 feet. Well worth the time, effort and money to make sure your tile job lasts.
no
If you are installing a floating laminate floor, you can easily put it right over the tile.
no, you would have a messy lumpy floor
Remove the laminate floor first
You would be putting a permanent floor over a temporary floor & that would not be wise. Might work but if it doesn't you lose it all...
How much? what kind of plywood floor? Why do you need to do this??