Modern rock wool production simulates the natural process of a volcanic eruption. Using raw materials such as basalt and dolomite, the substance is melted at temperatures exceeding 1450°C, then processed through centrifugal fiberization, the application of a binding agent, and subsequent curing. Rock wool sandwich panels-a type of composite building material that has seen rapid development over the past five to ten years-are now widely used due to their low cost, economical investment requirements, lightweight nature, ease of installation, and reusability.
The production process for color-coated steel rock wool sandwich panels involves integrating rock wool and steel sheets into a single unit using automated factory equipment; this replaces the older method, which required the components to be assembled on-site. However, as these composite panels have evolved, some have been found to have low fire-resistance ratings and high smoke-generation potential, leading to their inclusion as a key focus area for fire hazard inspections.