TI ProBoard Installation Guide
Save time and money with TI ProBoard – Made in the USA.
Installation Instructions
Step 1: Place TI ProBoard panels directly on the joists.
Step 2: Start with the first board (with slot) at the edge. Make sure it is straight and square.
Step 3: Use a chalk line to keep alignment accurate.
Step 4: Interlock each board and fasten to every joist.
Existing Decks
Existing decks can be tiled over if structurally sound. Ensure proper slope for water runoff.
Fastening Methods
Plywood / Backer Board: Use screws, nails, or staples.
Concrete / Slabs: Use spray adhesive (such as 3M Type 90). Masonry screws may be added to hold in place while curing.
Joining Boards
Place joints centered on joists.
Important: Do not run seams continuously on the same joist. All seams must be staggered.
Each board must span at least 3 joists.
Mortar Application
Mix mortar per manufacturer instructions and trowel level with the tops of the ribs, ensuring full coverage.
Recommended: Mer-Krete Underlayment C or equivalent.
Cutting Tip: Use a wet saw when cutting TI ProBoard.
Edging
Install TI Edging while the thinset is still wet. Press firmly against the deck edge for a clean finish.
Note: Panels are also available in black.
Installation Tips
Screw placement: every 4 ribs.
Joists should be 16" on center.
Use one coated deck screw per joist per panel.
Important Guidelines
Maintain slope of 1/4" per foot away from the structure.
Install between 40°F and 95°F.
Use exterior-rated porcelain tile.
Thinset coverage should be at least 98% (back butter recommended).
Use thinset meeting ANSI A118.4 or higher.
System Components
Mortar bed: Mer-Krete Underlayment C or equivalent.
Thinset: Modified (ANSI A118.4+).
Screws: 1-1/4" coated deck screws.
Grout: Exterior-rated.
Optional Waterproofing
Apply a waterproof membrane (such as Hydro-Guard 2000) after the underlayment cures.
Material Composition
Advanced composite ribs bonded to fiberglass matting.
Performance & Testing
Deflection Test: ASTM C627 rated “Extra Heavy”.
Freeze/Thaw: No damage observed.
Temperature Range: -30°F to 130°F with no deformation.
Benefits
No plywood or additional backer board required.
Creates a dry area below the deck.
Long-lasting, low-maintenance system.
Suitable for residential and commercial use.
Warranty
10-year limited warranty against rotting, cracking, or breaking (excluding improper installation).
2-year coverage on all other claims.
Final Notes
When installed correctly with proper materials, TI ProBoard provides a durable, maintenance-free tiled deck system for many years.
Installation Resources
Helpful guides and video instructions for TI ProBoard: