Although it is better not to tile over tile you can as long as you use good materials. Buy a GOOD modified thinset and either:
1. sand the surface of the old tile and lay the tile being sure to really "burn in" the thinset before you lay it with the flat side of thetrowel...in other words, make sure you get the thinset really well adhered onto the old tile, then "comb" a layer in with the notched side of the trowel. and then be sure to "backbutter" the tile before you set it.... 2. "Skim coat" the original tile with thinset, let it cure, and then thinset and tile over that after...the point is to level off the surface for the tile.
Please do not use pre-mixed thinset, take the time to mix it yourself, you will be glad you did.
at 12:58:57 AM
One thing you could consider for a quick easy fix is the metallic-like sheeting that you can buy at a lot of home improvement stores. They can be glued right on top of pretty much anything as long as the adhesive you select is appropriate for the application.
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