How to Tile Over Brick

1. Clean the Brick: Remove any dirt, debris, or loose mortar from the brick surface using a wire brush or a pressure washer. Let it dry completely.

2. Test for Stability: Ensure that the brick surface is stable and well-bonded. If any loose bricks or mortar joints are found, repair or replace them before tiling.

Step 2: Apply a Bonding Agent

3. Apply Bonding Agent: Use a bonding agent specifically formulated for adhering tiles to brick surfaces. Follow the manufacturer's instructions for mixing and applying the bonding agent.

Step 3: Install Cement Board (Backer Board)

4. Install Cement Board: Attach cement boards (backer boards) over the brick surface using screws or nails. Make sure the boards are secured tightly and there are no gaps between them.

Step 4: Install Cement Board Mesh (Optional)

5. Apply Mesh: Some tilers recommend applying cement board mesh over the backer board for extra support. This step is optional but can provide added strength to the tile installation.

Step 5: Apply Thin-set Mortar

6. Mix Thin-set: Prepare thin-set mortar according to the manufacturer's instructions.

7. Trowel Application: Use a trowel to apply the mortar onto the backer board. Spread it evenly, creating a thin layer that covers the entire surface.

Step 6: Lay the Tiles

8. Start Tiling: Begin laying the tiles from a corner or an inconspicuous location. Press each tile firmly into the thin-set mortar, ensuring that they are level and evenly spaced.

9. Spacers: Use tile spacers to maintain consistent joints between the tiles.

10. Grouting: Once the tiles are set, allow the thin-set mortar to dry completely according to the manufacturer's recommendations. Then, apply grout to the joints between the tiles, making sure to fill them completely.

11. Cleaning: Clean off any excess grout from the tile surfaces with a damp sponge. Avoid using harsh chemicals that could damage the tiles or grout.

12. Seal the Grout: After the grout has cured, apply a grout sealer to protect it from water and stains.

13. Allow Curing: Let the tiles and grout cure for the specified time before walking on them or placing heavy objects on them.

Tips:

- Check the manufacturer's guidelines and recommendations for the type of thin-set mortar and grout that are suitable for your specific tile and surface.

- If the brick surface is uneven, you may need to use a self-leveling compound to create an even base before installing the cement board.

- Always check the flatness of the surface using a level to ensure a proper installation.