ROK-ON™ Structural Insulated Sheathing

ROK-ON™ is an innovative structural insulated sheathing system for the building envelope that exceeds code requirements for energy and fire performance. Installation is quick and eliminates many of the steps and complexity required in common code-mandated assemblies.

ROK-ON™ is made by bonding our proprietary fiberglass-reinforced ceramic cement sheathing (FRCC) to expanded polystyrene foam in a thin structural panel. The EPS core is surrounded by a 6mm sheet next to the framing and a 12mm sheet to the exterior. The result is a 2 ¾” all-in-one structural sheathing with superior performance compared to common substrates for the building envelope.

Meets over 63 ASTM standards for fire, energy, and structural performance.

ROK-ON™ has been tested to NFPA 285 and has both 1-hour and 2-hour rated fire assemblies.

ROK-ON™ has an R-Value of up to R14.5, exceeding the code mandates for continuous insulation.

ROK-ON™ can take weeks or months off the construction cycle leading to earlier occupancy. The increased revenue helps offset the cost of the envelope leading to a lower overall cost and better ROI for the client.

ROK-ON™ SIS is fire, water, mold, termite, and impact resistant. It has a non-combustible, impact and water-resistant structural board on the exterior of a thermal barrier allowing for direct application of finishes or cladding without expensive attachment systems.