TI ProBoard® Structural Ribbed Self-Supporting Board

TI-PROBOARD is a Structural Ribbed Self-Supporting Board (SRSB), which is a sustainable, durable and virtually maintenance-free underlayment for exterior deck porcelain tile installations. TI-PROBOARD is a composite panel that is unaffected by expansion, contraction or exterior weather conditions.


  • Structural – no need for deck boards or plywood substrate
  • Easy to install
  • Superior freeze/thaw performance
  • Low expansion/contraction coefficient
  • Extra-heavy floor rating
  • In 8′ and 12′ lengths.


  • Won’t expand or contract
  • Won’t warp
  • No flame spread
  • Won’t mold or mildew
  • Commercially approved rating