What Should You Know Before Remodeling a Tile Shower?
Remodeling a tile shower is one of the most rewarding home improvements — but it is also one of the most complex. A tile shower is a system, not just tile on a wall. After decades of building tile showers in Oklahoma homes, we share what homeowners need to know before starting.
A Tile Shower Is a System
The most important concept: a tile shower is a system of components working together to keep water inside and protect the structure. The components include:
- Waterproof membrane — the primary water barrier behind the tile.
- Substrate — the backing material for walls and floor.
- Drainage — the shower pan, preslope, and drain.
- Tile and grout — the visible surface.
- Fixtures and penetrations — shower head, valves, and handles.
- Ventilation — exhaust fan to remove moisture.
Each component must be installed correctly for the system to function. Failure of any component can lead to water damage, mold, and structural issues.
Waterproofing Is Critical
Tile and grout are not waterproof — water penetrates through grout and tile pores. A proper waterproof system is essential:
- Membrane type — choose sheet, liquid, or foam backer system.
- Membrane coverage — walls, floor, curb, niche, and all penetrations.
- Proper installation — seams sealed, corners reinforced, penetrations flashed.
- Inspection — flood test before tiling to verify waterproofing.
Never skip or compromise on waterproofing — it is the most important part of a shower.
Choosing the Right Tile
Tile selection affects both appearance and performance:
- Wall tile — ceramic or porcelain; larger formats reduce grout lines.
- Floor tile — must have slip resistance; small format mosaics provide grip and accommodate slope.
- Ceiling tile — if tiling the ceiling, use moisture-resistant materials.
- Niche tile — coordinate with wall tile; ensure proper waterproofing.
- Trim and transitions — bullnose, schluter strips, or other edge treatments.
Choose tile rated for wet areas; some natural stones are not suitable for showers.
Grout Selection
Grout choice affects maintenance and performance:
- Epoxy grout — best for showers; waterproof, stain-proof, mold-resistant.
- Urethane grout — flexible, crack-resistant; good for Oklahoma homes with movement.
- Cement grout — porous; requires sealing; not ideal for showers.
- Grout color — medium colors balance appearance and maintenance.
- Grout joint width — depends on tile type; rectified tile for narrow joints.
Shower Base Options
- Custom mortar pan — built on-site with preslope, liner, and mortar bed; fully customizable.
- Foam shower pan — pre-sloped foam pan; waterproof; integrates with membrane system.
- Pre-fabricated pan — acrylic or fiberglass; quick to install; limited sizes and styles.
- Linear drain pan — modern design with linear drain; requires large format tile.
Shower Features to Consider
- Niche — built-in shelf for shampoo and soap; must be waterproofed.
- Bench — built-in or floating seat; must be waterproofed and structurally sound.
- Grab bars — safety feature; must be anchored to blocking in the wall.
- Multiple shower heads — rainfall, handheld, and body sprays; require proper plumbing.
- Steam shower — sealed enclosure with steam generator; requires full waterproofing and vapor barrier.
- Lighting — waterproof shower lighting; must be rated for wet locations.
Plumbing Considerations
- Relocate fixtures — moving shower head or valves requires plumbing changes.
- Valve replacement — consider replacing old valves with modern pressure-balanced valves.
- Drain location — ensure the drain is properly positioned and sized.
- Water supply — ensure adequate water pressure and flow.
- Hire a licensed plumber — plumbing work requires a licensed professional.
Ventilation
Proper ventilation removes moisture and prevents mold:
- Exhaust fan — sized for the bathroom; vented to the exterior, not the attic.
- Fan timer — run the fan for 20-30 minutes after showering.
- Window — if the bathroom has a window, it can supplement ventilation but is not a substitute for a fan.
Timeline and Process
- Demolition — remove old shower, tile, and damaged materials.
- Plumbing rough-in — relocate or replace plumbing as needed.
- Substrate installation — install backer board or foam panels.
- Waterproofing — install membrane and seal all penetrations.
- Flood test — test the waterproofing before tiling.
- Tile installation — install wall tile, floor tile, and trim.
- Grouting — apply grout and clean.
- Sealing — seal grout and natural stone if needed.
- Fixture installation — install shower head, valves, and trim.
- Final inspection — verify all components function properly.
Allow 1-2 weeks for a typical shower remodel, depending on complexity.
Oklahoma Considerations
Oklahoma homes with expansive clay soils and foundation movement benefit from flexible waterproof membranes and flexible grout (urethane or epoxy). Oklahoma's humid climate makes ventilation and mold resistance especially important. Always install a properly sized exhaust fan vented to the exterior.
Key Takeaways
- A tile shower is a system — waterproofing, substrate, drainage, and tile must work together.
- Waterproofing is the most critical component — tile and grout are not waterproof.
- Choose epoxy or urethane grout for showers; avoid cement grout.
- Plan features like niches, benches, and grab bars before construction begins.
- Hire experienced professionals for plumbing, waterproofing, and tile installation.
Common Mistakes to Avoid
- Skiping the waterproof membrane.
- Using drywall or greenboard behind shower tile.
- Using cement grout in the shower.
- Not installing a proper exhaust fan.
- Hiring an installer without shower experience.
- Not flood-testing the waterproofing before tiling.
Questions to Ask Before You Buy
- What waterproof system will be used in my shower?
- What tile and grout are best for showers?
- What features do I want — niche, bench, grab bars?
- What is the timeline for the remodel?
- Is the installer experienced with waterproof shower systems?
Maintenance Tips
- Squeegee the shower after each use to remove water.
- Run the exhaust fan for 20-30 minutes after showering.
- Clean with pH-neutral cleaners; avoid harsh chemicals.
- Seal cement grout annually (if used).
- Inspect grout and caulk annually for cracks.
- Address any signs of water damage immediately.
When to Speak with a Flooring Professional
A tile professional experienced with shower systems can design and build a shower that will last for decades. They can recommend the right waterproof system, tile, grout, and features, and coordinate with plumbers and electricians for a complete installation.
Bottom Line
A tile shower is a complex system — waterproofing, substrate, drainage, tile, and grout must work together. Waterproofing is the most critical component. Choose epoxy or urethane grout, plan features before construction, and hire experienced professionals. For Oklahoma homes, flexible membranes and grout accommodate foundation movement. A properly built shower provides decades of trouble-free service.
Related Articles
- What Is a Waterproof Shower System?
- What Is the Best Grout for a Shower?
- Does Shower Tile Need to Be Sealed?
- Why Does Shower Grout Crack?
Still have questions? Visit your nearest Premier Carpet & Tile showroom to speak with an experienced flooring professional who can help you plan your project with confidence.
Key considerations
- A tile shower is a system — waterproofing, substrate, drainage, and tile must work together
- Waterproofing is the most critical component — tile and grout are not waterproof
- Choose epoxy or urethane grout for showers; avoid cement grout
- Plan features like niches, benches, and grab bars before construction begins
- Hire experienced professionals for plumbing, waterproofing, and tile installation
A common misconception
Many homeowners approach a shower remodel thinking it's just replacing tile. In reality, a tile shower is a complex system involving waterproofing, proper substrate, drainage, and precise installation. Skipping any step leads to water damage and costly repairs.
Ask an Expert