Chip out any loose grout and then vacuum the floor.
Installing porcelain tile over vinyl floor.
The best candidate is fully adhered glued down sheet vinyl flooring.
This isn t possible with every flooring material but it s often possible to install ceramic porcelain or stone tile over resilient flooring including standard sheet vinyl vinyl tile or linoleum.
Consider this sample procedure for leveling a ceramic tile floor prior to installing glue down or floating vinyl.
Before you start see if any tile is broken or damaged.
However if you can t remove the old surface or otherwise decide to install over it lay a backer board with thin set over the old surface to serve as your new subfloor material.
Apply thin set adhesive to the vinyl flooring with a notched trowel.
Ron and armen tavy demonstrate one such surface in this project as they install ceramic tile over vinyl flooring.
Apply thin set adhesive to any joints in the backer board.
Mix a cementitious floor leveling compound such as henry 555 level pro or levelquik self leveling underlayment with water in a bucket until the mixture is pourable.
Your greatest concerns when installing a vinyl floor over the existing tile are the tile s joints and the floor s height.
Once you ve removed lose or broken pieces patch the empty sections with a liquid cement or mortar letting it settle level with the tile floor.
Laying tile over vinyl flooring on a plywood subfloor.
Not every form of resilient flooring is suitable for receiving tile directly.
When bonding vinyl tiles in place or when bonding new tile to old vinyl tile there are some considerations you must make before determining whether you can use thinset in the application.