The JI Shield Built-up System Roof 3 gives a warranted metal roofing system which features a 0,70 mm outer and 0,70 mm liner. The assembly provides a highly cost-effective roof system that is ideal for all types of commercial constructions. The full build-up results into an outstanding thermal, fire and acoustic system performance. The JI Shield Built-up System Roof 3 provides a robust JIC 32-200-1000 outer sheet with strength and aesthetically enhancing swages.