ROK-ON™ Structural Insulated Sheathing combines strength, fire resistance and insulation efficiency all in one panel making it a code compliant, budget friendly choice for Architects and designers to specify. ROK-ON™ is made using non-combustible, structural surface on the outside face as well as on the inside face of the panel which encapsultes the insulation making it superior in strength and fire resistance  .  For more information on ROK-ON™ SIS please call or email us or visit the ROK-ON™ website