What Kind of Tiles Can Be Used on Top of Concrete?

Vinyl

• Vinyl tile is easy to install and available in a variety of grades and textures. Peel-and-stick tiles come pre-glued so that all you have to do is stick them down, or you may prefer tiles that require adhesive. These can be applied over concrete, although they aren't ideal over concrete where moisture is a problem. With vinyl tiles it's also best to prime the concrete with a latex primer before installing. Holes, bumps and other irregularities in the concrete will show through the tile and can result in rips or buckling after installation. For this reason, before installing vinyl tiles, fill holes and cracks in your concrete surface and level out areas where the floor may dip or heave.

Cork

• Cork tiles can be installed over concrete that is smooth and level. The concrete must also be free of dust, dirt and grease or oils. Irregularities in the concrete will show in your tiles, so cracks, holes, and joints should be patched and properly sealed. Cork will absorb moisture, which can cause the tiles to expand after installation, so before installation, place a moisture barrier, such as 6 millimeter polyethylene film, between the tiles and the concrete to prevent moisture from seeping into your tiles. If you are gluing the tiles, then a plywood sub-floor over the moisture barrier is required.

Ceramic

• Ceramic tiles are an affordable option for homeowners looking for hard, durable flooring. The tiles are made from natural materials like clay and quartz and can be installed over concrete surfaces that are clean and dry before installation, with any dips or bumps levelled using a Portland cement-based levelling compound. Do not install ceramic tile over painted, sealed or chemically treated concrete. Occasionally a curing compound is used on concrete to aid the curing process, and this will prevent bonding between the concrete and the adhesive used to install the ceramic tiles. Pour a few drops of water on the surface of your concrete. If it beads, then a curing compound was likely used and the surface is unsuitable for ceramic tiles.

Natural Stone

• For many natural stone tiles such as travertine, terrazzo, granite and slate, a concrete subfloor is recommended. Although natural stone is durable, it can crack and lift if there are gaps in the substrate. For this reason, irregularities in the concrete such as cracks and holes must be patched and the surface made even and level before installation of the tiles. If the concrete has bumps or large dips, apply a levelling compound as well before you lay the tiles.