Tiling Over Marble Floor
Then if you use the proper mastic the tiles should stick.
Tiling over marble floor. Standing water can penetrate the stone and discolor it. Tiling over an uneven surface will give you less than stellar results so level out any globs of dried grout with a sander and secure loose tiles with fresh. If you want a long lasting durable floor then install a porcelain tile over your existing marble floor. Buy a latex modified thin set one brand is flexbond and mix it in small batches to keep it from skinning over.
However it may be worth noting that you may need to wait a little longer between laying the tile and grouting to allow the thin set to properly cure. Also consider that doors cabinets and other hardware might need to be reworked or replaced with new ones to compensate for the higher floor. Only spread a small area at first until you have set a few tiles in order to ensure that you do not spread too far ahead of yourself and allow the adhesive time to set up. Or larger and even more important when you re tiling over tile.
If you want to tile over a marble fireplace you have to address the problem of tile adhesion. The modified mortar creates a stronger bond between the surfaces. Remove any moldy or loose grout with a rotary tool or carbide scraper. One strategy is to clean the marble with tsp and water then sand it with coarse sandpaper to etch it.
This is a mixture of cement fine grain sand and water that will adhere the new tile to the old. Yes it s possible to go over a stable tile with a good substrate. You can also install cement backer board. As for tiling over it.
President wrightworks llc. Use a thin set product to install ceramic tile over existing tiles. However unlike ceramic tile marble is fairly porous so you shouldn t allow water to puddle and stand on the surface. You will have to clean and scarify the marble before you installed the tile over it.
Vacuum the tiles and clean with detergent and water to remove dirt sealers and wax. Using your notched trowel apply an even layer of thinset or mastic to the cultured marble. Once installed routine maintenance of a marble tile floor is relatively easy it requires the same kind of sweeping and damp mopping you would do with a ceramic tile floor. The marble floor has to be structurally stable because your new floor will only be as good as the existing floor.
Rinse the surface with clear water and let it dry. Try an area for three to four tiles to start and go from there. When laying tile over tile it is best to use a modified thin set. Complete adhesive coverage is critical on large tiles 12 in.
Prepare the surface for installation.