Loose lay perimeter bond sheet vinyl can shift beneath the tile installation making it unsuitable as a base for ceramic tile.
Ceramic tile over pressboard and vinyl.
To install ceramic tile over wood the wood surface must be structurally sound enough to support the weight of the tile.
The main caveat is that all vinyl formats call for a smooth subfloor including sheet vinyl vinyl tile and luxury vinyl planks and tiles.
The ceramic tile institute of america recommends against using particleboard as a foundation for ceramic tile in flooring.
If the grout lines in the ceramic tile are deep you ll see and feel them under sheet flooring and if you choose to install preglued vinyl tiles they won t stick.
Over time the vinyl will sink or be pressed down into the contour of these depressions telescoping the grout joints from the ceramic tile installation all the way up through the vinyl tiles.
Next if the tile s joints are deep you ll want regrout them to bring them flush with the tile so that the lines won t telegraph show through the vinyl floor.
While standard sheet vinyl that is well bonded usually makes an acceptable base for ceramic tile that s not true of all forms of resilient flooring.
Chipboard cushioned vinyl flooring particle boards of any type oriented strand board osb interior grade plywood tongue and groove planking and hardwood floors are unsuitable substrates for direct installation of ceramic tile.
Installing over wood.