Beautiful tile does not make a shower waterproof. Waterproofing happens behind the tile, at the corners, around penetrations, at the curb, and at the drain.
Tile and grout are not the waterproof layer
Tile and grout shed water, but they should not be treated as the only water protection. A shower needs a waterproofing method behind or directly under the tile surface.
Ask what waterproofing system will be used and where it will be applied. The answer should be specific.
Slope and drain details matter
Water needs a path to the drain. Poor slope can leave standing water, dark grout lines, odor, and long-term maintenance problems.
Linear drains, center drains, curbless entries, and shower benches all need planning before tile starts.
Ventilation protects the room
A bathroom fan that is weak, loud, disconnected, or rarely used can shorten the life of paint, trim, cabinetry, and grout.
Ventilation should be part of the remodel discussion, especially in bathrooms with heavy shower use or no operable window.
Blocking should be planned before walls close
Grab bars, glass panels, niches, benches, towel bars, and heavy accessories may need framing support. It is easier to add blocking while the walls are open.
Even if grab bars are not installed immediately, future blocking can make the bathroom more adaptable.
Checklist
- Waterproofing system
- Drain location
- Curb or curbless plan
- Niche placement
- Glass attachment points
- Fan capacity
- Accessory blocking
- Tile layout