Installing Concrete Overlays over Tile
Is it possible to install a decorative cement-based overlay right over ceramic tile? Yes, says Harris, but only if the tile is sound and in good condition. He explains how to determine this by conducting a chain-drag test for tile adherence. Other factors to consider:
- If the tile is glazed, it must be scuffed up first to ensure a good bond.
- Before applying the overlay, you must preseal the grout joints so they won't absorb moisture from the overlay. This can result in differential curing and ghosting of the joints through the overlay.
- Ask your contractor if the overlay to be installed is suitable for going over ceramic.
Read more about decorative concrete overlays.
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