Can You Put Tile Over Tile in a Shower Floor?
It's a common question among homeowners: Can you put tile over tile in a shower floor? The short answer is sometimes, but it's not always the best option.
Here's a breakdown of the factors you need to consider:
Pros of Tiling Over Tile
- Cost-Effective: Tiling over existing tile can save you money compared to removing the old tile and starting from scratch.
- Less Mess: This option minimizes demolition and dust, making it a more attractive choice for some homeowners.
- Faster Installation: Since you're not removing the existing tile, the installation process is typically quicker.
Cons of Tiling Over Tile
- Adhesion Issues: If the existing tile is loose, cracked, or uneven, the new tile might not adhere properly, leading to problems like cracking and delamination.
- Increased Thickness: Adding a new layer of tile will increase the thickness of the shower floor, which can affect drainage and create a tripping hazard.
- Potential for Moisture Issues: If the existing tile isn't properly sealed, moisture can seep in and cause problems with the new tile layer, especially in a shower environment.
When Tiling Over Tile is a Good Option
- Strong, Secure Existing Tile: If the existing tile is in good condition and well-adhered to the subfloor, it can be a viable option.
- Limited Height Increase: Ensure that adding a layer of tile won't significantly affect the height of the shower floor or create drainage problems.
- Professional Installation: It's crucial to hire a qualified and experienced tile installer who can properly assess the existing tile and ensure a successful installation.
When Tiling Over Tile is Not a Good Option
- Loose, Cracked, or Uneven Existing Tile: If the existing tile is damaged or unstable, it's best to remove it and start with a fresh subfloor.
- Significant Height Increase: Avoid tiling over existing tile if it would create a substantial height difference that could affect drainage or create a tripping hazard.
- Moisture Issues: If you suspect moisture problems beneath the existing tile, address them before considering tiling over it.
Important Considerations
- Subfloor Condition: Assess the subfloor beneath the existing tile. If it's damaged or uneven, it needs to be repaired or replaced before adding a new tile layer.
- Proper Preparation: Thoroughly clean and prepare the existing tile surface to ensure proper adhesion of the new tile.
- Specialized Mortar: Use a mortar specifically designed for tiling over existing tile.
- Grout: Choose a grout that is waterproof and durable enough to withstand the conditions in a shower environment.
Ultimately, the decision to tile over tile in a shower floor depends on the specific circumstances and the condition of the existing tile. Consult with a qualified tile installer to determine if it's a suitable option for your project.
