Best backsplash installation pros near Iowa Falls, IA

You can use sanded or unsanded grout for a shower pan, but sanded grout isn’t the best option for shower walls. For those areas, you’ll want to use unsanded grout, which works well on vertical surfaces and is less likely to slump than sanded grout. Alternatively, you can use epoxy grout for shower walls.

The difference between floor and wall tiles is that floor tiles generally have higher strength and porosity ratings than wall tiles. Wall tiles are typically weaker and more likely to crack or become damaged under sustained pressure like high foot traffic. 

For this reason, avoid using wall tiles on floors and vice versa.

Yes, it would be best if you waterproofed your shower walls before tiling. The cement backing board behind the tile is not waterproof; it’s only water-resistant. On top of your tile backing board, be sure to use a waterproof shower membrane before you start installing your shower tiles.

You can technically install tile over tile, but we don’t suggest it. Installing tile over any surface that isn’t a completely flat and prepared subfloor will result in a shoddy overall job, uneven flooring, tiles that don’t adhere, extra weight, gaps, cracks, and room for moisture and dirt to enter. For the best results, only install new tile on a flat, sanded surface like subflooring or concrete that is prepared for tile.

If you have asbestos tile and would rather tile over it than remove it, or if your existing tile is completely flat and bonded tightly to the floor, you may be able to tile over existing tile. But experts recommend thinking twice before you do.