We are putting a new slate floor in our kitchen. We have looked into subflooring, but before I buy anything I wanted to know if what we have is sufficient. We have 2 layers of subfloor and linoleum. Is that going to be strong enough to support the tile? Also if not can we just lay the appropriate subfloor on top of what we have, or should we try to remove some of it?
I think what you really have is one subfloor and one underlayment that is associated with the vinyl. It should all be removed down to the subfloor and start over. It is never a good idea to heap floor covering over floor covering and when it comes to installaing a stone floor tile it could be disasterous.