STYROFOAM™ Brand CAVITYMATE™ Ultra Insulation

An extruded polystyrene foam board that uses patented carbon black materials for enhanced thermal performance.

Used in:

  • For commercial applications
  • Special 16' (400 mm) width to easily fit between brick ties in cavity wall applications


  • Highest R-value/RSI per inch/mm of all STYROFOAM™ Brand XPS Foam Insulation products
  • Absorbs infrared radiation, slowing transmission through foam and lowering heat flow
  • High moisture resistance
  • Durable