Can all tiles be used on walls and floors?

Tiles can be applied to a variety of surfaces, as long as they are clean, dry, and structurally sound. Here are some common surfaces that tiles can be applied to:

1. Concrete: Concrete is a suitable surface for tiling, as long as it is smooth, level, and free of cracks and debris. If the concrete is rough or uneven, it may need to be leveled with a self-leveling compound before tiling.

2. Cement backer board: Cement backer board is a popular substrate for tiling, especially in wet areas such as bathrooms and kitchens. It is resistant to moisture and provides a stable and flat surface for tile installation.

3. Plywood: Plywood can be used as a substrate for tiling, but it must be exterior grade and have a minimum thickness of ¾ inch. The plywood should also be firmly attached to the subfloor and free of any warping or deflection.

4. Existing tiles: In some cases, new tiles can be installed directly over existing tiles as long as they are firmly attached to the substrate and free of any cracks or damage. However, it is important to consider the additional weight and thickness of the new tiles, as this may affect the height of the finished surface.

5. Drywall: Drywall is not a suitable surface for tiling, as it is not strong enough to support the weight of the tiles. If tiling over drywall is necessary, a cement backer board should be installed first to provide a stable and flat surface.

It is important to ensure that the surface is suitable for tiling and that any necessary preparation work is done before installing tiles. Consult with a professional or refer to the manufacturer's installation guidelines for specific recommendations for your project.