ClearPath Curbless Shower Pan System Installation Manual
Professional Step-by-Step Curbless Shower Installation Guide
The ClearPath Curbless Shower Pan System is designed to create modern barrier-free shower installations with proper drainage, waterproofing, and structural support for residential and commercial bathroom remodeling projects.
This installation manual provides step-by-step guidance for properly preparing, assembling, waterproofing, and tiling the ClearPath shower system.
Pre-Installation Planning
Before beginning installation, verify all materials, tools, plumbing components, and structural framing requirements are ready and compliant with local building codes and Tile Council of North America (TCNA) guidelines.
Recommended Installation Tools
- Circular or reciprocating saw
- Wet saw
- Impact driver or cordless drill
- 3/16" V-notch trowel
- Float and screed tools
- Hammer
- Utility knife or heavy-duty shears
- Hack saw
Required Installation Materials
- Sand and mortar mix
- Modified thinset mortar
- PVC or ABS pipe cleaner
- PVC or ABS cement
- 2" x 4" blocking lumber
- Joist hangers
- Drain grate assembly
Subfloor Requirements
The subfloor assembly must comply with local building codes and TCNA installation standards. Proper framing and support are critical for long-term shower performance and tile durability.
Step 1: Determine Shower Layout
Plan the shower layout and drain location carefully. Maximum distance from the drain should not exceed 4 feet when using a 1-1/4" subfloor assembly to maintain proper drainage slope.
Step 2: Remove Existing Subfloor
Remove the subfloor as needed, ideally along joist centerlines. Subfloor reveal from the sill plate should not exceed 3/4".
Step 3: Install Blocking for Drain Plate
Install 2" x 4" blocking around the drain location. The top of the blocking should sit approximately 1/4" below the joists to properly align the drain flange.
Blocking should be spaced approximately 12-3/16" on center.
Step 4: Connect Drain Plumbing
Connect 2" Schedule 40 PVC or ABS piping to the drain assembly. Clean and glue all plumbing joints using the appropriate primer and cement.
Step 5: Install the Drain Plate
Secure the drain plate to the blocking using four 1-5/8" screws.
Step 6: Install Additional Blocking Support
Ensure all TI-ProBoard edges are fully supported by joists or blocking.
Step 7: Install Perimeter Support Pieces
Install perimeter support pieces to contain the mortar bed during installation. These components are not structural supports.
Step 8: Dry Fit TI-ProBoard Panels
Install TI-ProBoard panels perpendicular to the joists while ensuring each panel spans a minimum of three joists or blocking sections.
Step 9: Fasten TI-ProBoard Panels
Fasten panels beginning at the drain area and working outward. Install screws along the marked fastening channels at each joist location.
Step 10: Install Perimeter Backer Board
Install ProTEC® or ProPanel® perimeter backer boards to match the finished floor height.
Step 11: Prepare Mortar Bed
Prepare a 4:1 sand-to-cement mortar mix according to ANSI A108.1B standards. Fully pack mortar into the dovetail ribs for maximum structural strength.
Step 12: Create Shower Slope
Screed the mortar bed to create proper slope toward the drain assembly. Keep the drain membrane clean and allow the mortar bed to cure fully before continuing.
Step 13: Clean the Surface
Remove dust, debris, and contaminants before waterproofing installation.
Step 14: Install Waterproofing Membrane
Apply thinset mortar using a 3/16" V-notch trowel and install the AQUA SHIELD waterproofing membrane with proper overlap and full adhesion.
Step 15-16: Wall Integration and Waterproofing
Install wall backer boards and waterproofing systems according to TCNA guidelines while maintaining proper membrane overlap and waterproof transitions.
Step 17: Tile Installation
Install tile using ANSI A118.4 compliant thinset mortar while following TCNA tile installation standards and manufacturer installation guidelines.
Benefits of the ClearPath Curbless Shower System
- Barrier-free shower entry
- Modern low-profile appearance
- Improved accessibility
- Ideal for aging-in-place bathroom designs
- Suitable for residential and commercial projects
- Compatible with modern tile shower systems
Made in the USA
Installation and Helpful Resources
- Step-by-Step ClearPath Shower Installation Guide
- ClearPath Curbless Shower Installation Manual
- TI-ProBoard Installation Instruction Guide
- TI-ProBoard Installation Video
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