How To Make A Shower Base On A Concrete Floor Guide 2022

3 min read 23-11-2024

How To Make A Shower Base On A Concrete Floor Guide 2022

Creating a custom shower base directly on a concrete floor offers significant cost savings and design flexibility compared to pre-fabricated options. This comprehensive guide provides a step-by-step process for building a durable and watertight shower base, perfect for DIY enthusiasts and experienced renovators alike. This project requires some DIY skills and tools, but the result is a beautiful and long-lasting shower.

Planning Your Shower Base

Before you begin, careful planning is crucial for a successful outcome.

1. Determine Size and Location

Measure your desired shower dimensions precisely. Consider the available space and plumbing access. Ensure the location allows for proper ventilation to prevent mold and mildew growth.

2. Gather Materials

You'll need the following materials:

Concrete: A high-strength mix is recommended for durability. Consider using a waterproof additive for extra protection.
Waterproof Membrane: A crucial component for preventing water damage. Common options include PVC or rubberized membranes.
Curing Compound: This helps prevent rapid drying and cracking in the concrete.
Mortar: For setting the tile.
Tile: Choose a waterproof tile suitable for shower environments.
Grout: Waterproof grout is essential for a lasting seal.
Slope Gauge: Ensures proper drainage.
Tools: Level, trowels, mixing buckets, measuring tape, etc.

3. Check for Existing Floor Issues

Inspect the concrete floor for any cracks, damage, or unevenness. Repair any issues before proceeding. Unevenness can cause problems with water drainage.

Building the Shower Base

This section details the construction process.

1. Prepare the Concrete Subfloor

Clean the concrete thoroughly to remove dirt, debris, and any existing coatings. This ensures proper adhesion. Use a concrete cleaner and allow ample drying time.

2. Create a Slope for Drainage

Use a slope gauge to establish a consistent slope towards your drain location. A slope of approximately 1/4 inch per foot is recommended. You can achieve this by adding more concrete to one side of the base.

3. Install the Waterproof Membrane

Lay the waterproof membrane over the sloped concrete. Overlap seams and seal them carefully with waterproof tape. Ensure the membrane extends up the shower walls.

4. Pour and Level the Concrete

Mix the concrete according to the manufacturer's instructions. Pour the concrete onto the membrane, ensuring it reaches the desired thickness and slope. Use a screed to level the surface.

5. Cure the Concrete

Allow the concrete to cure completely according to the manufacturer’s instructions. This usually involves keeping it moist for several days to prevent cracking.

6. Install the Drain

Once the concrete has cured, install the shower drain according to the manufacturer’s instructions. Ensure it is level and securely fastened. A pre-slope is recommended under the drain for improved water removal.

Finishing the Shower Base

This completes the shower base construction.

1. Install Tile

Apply mortar to the concrete base and install the shower tiles according to the manufacturer’s instructions. Use spacers for consistent grout lines.

2. Apply Grout

Once the mortar has cured, apply waterproof grout to the spaces between the tiles. Clean excess grout immediately.

3. Seal the Grout

Use a grout sealer to enhance water resistance and prevent staining.

4. Caulk the Edges

Caulk the edges of the shower base where it meets the walls to create a watertight seal.

Troubleshooting

Cracks in the concrete: These are often caused by rapid drying. Ensure proper curing and consider using a crack-resistant concrete mix.
Uneven surface: Use a level and screed to ensure a perfectly smooth surface before tiling.
Leaks: Thoroughly check the waterproof membrane for any gaps or tears before pouring the concrete.

This guide provides a comprehensive overview of creating a shower base on a concrete floor. Remember, meticulous planning and execution are essential for a successful outcome. If you are unsure about any step, consult with a professional. A well-built shower base can significantly improve your bathroom and its value. Remember to always prioritize safety by wearing proper safety gear throughout the project.