Tile will almost always last longer than laminate flooring, regardless of the type of tile installed. Porcelain tile can last for 75 years or more with proper care, and even less durable ceramic tile will last for 60 years or more, provided they’re installed by a tile professional. On the other hand, laminate flooring has an average lifespan of around 20 years, and you might only get 10 to 15 years out of low-cost laminate flooring. As such, tile will add far more value to your home than laminate.

The reasons not to install flooring underneath a bathtub outweigh the benefits. A properly installed bathtub will keep water from reaching the unprotected subfloor underneath. Installing a tub on top of finished flooring can lead to damage and scratches to the new floor. Also, a small leak from a tub drain may be more difficult to notice if finished flooring impedes water drips.

If you’re looking for a durable tile for a shower floor, consider porcelain, stone, or vinyl tiles. Each of these options, when installed correctly, will stand up well to everything from water and moisture to the impact from a dropped bottle of body wash. These materials are also easy to clean and maintain, making them popular options for shower floors.

No, you don’t need to remove the old grout before installing new tile over existing tile. In fact, the old grout helps fill in gaps between tiles, creating a more even surface for the new layer. However, it's important to ensure that the grout is clean, solid, and free of cracks or crumbling areas. Damaged grout should be repaired or replaced before proceeding. Cleaning the surface thoroughly and filling any low spots will help the new adhesive bond properly and ensure a smooth, stable installation.