You can tile over existing tiles if the following conditions are met: The existing tiles are firmly attached to the surface and in good condition (no cracks or loose tiles). The surface is clean and free from dust, grease, and other contaminants. You use a suitable adhesive specifically designed for tiling over tiles. However, it's essential to consider the added weight and thickness of the new tiles and ensure that the underlying structure can support them. If you're unsure, consult a professional tiler for advice.
The drying time for tile adhesive and grout depends on the product used and factors such as temperature, humidity, and air circulation. Generally, tile adhesive takes around 24 hours to dry before grouting can begin. Grout typically takes 24-48 hours to cure fully. Check the manufacturer's instructions for the recommended drying times for your specific products.
Ceramic and porcelain tiles are ceramic tiles but have different properties due to their manufacturing process. Ceramic tiles are made from natural clay, fired at a lower temperature, and for a shorter time than porcelain tiles. As a result, ceramic tiles are less dense, more porous, and generally less durable than porcelain tiles. Porcelain tiles are made from finer clay and fired at higher temperatures, making them denser, less porous, and more resistant to moisture, stains, and wear. Porcelain tiles are often more suitable for high-traffic areas and outdoor applications due to their durability and low water absorption rate.
Sealing tiles and grout depends on the type of material used and the specific application. Porous tiles, such as natural stone or unglazed ceramics, usually require sealing to protect them from staining and moisture damage. Glazed ceramic and porcelain tiles generally do not need sealing, as their surface is already resistant to moisture and stains. Grout, particularly cement-based grout, is porous and may need sealing to prevent staining and water absorption. Epoxy grout is less porous and typically does not require sealing. Always follow the manufacturer's recommendations for sealing your tiles and grout.