Rock wool sandwich panels fully leverage the excellent conventional performance of the rock wool core material, demonstrating significant effects in fire prevention, thermal insulation, sound absorption, and sound insulation. Their specifications, models, and styles are also rich and diverse, providing users with a wide range of choices. When purchasing and using them, users should closely combine their actual engineering needs and specific application scenarios to carefully select the most suitable dimensions and parameters. We provide the following parameters as a reference for material selection.

Steel sheet specifications: As the skeleton of the panel, the outer sheet thickness is usually between 0.5 millimeters and 0.8 millimeters, while the inner sheet thickness is generally within the range of 0.4 millimeters to 0.6 millimeters. Steel sheet surfaces are usually treated with galvanizing or aluminum-zinc coating to enhance their corrosion resistance, and their yield strength is generally required to be greater than 300 megapascals to ensure structural stability.

When rock wool sandwich panels are used for building exterior walls, to ensure their long-term safety and durability, the thickness of the outer steel sheet should not be less than 0.5 millimeters, and the total thickness of the finished panel should not be less than 50 millimeters. Steel sheets that are too thin may cause the panels to deform or scratch during transportation, installation, or use, leading to quality problems. At the same time, the overall thickness of the panel is the core factor determining its thermal insulation performance. Generally speaking, the greater the product thickness, the higher its thermal resistance value, and naturally the better the insulation effect.

When applied to roofs and installing photovoltaic systems, higher requirements are placed on the load-bearing capacity and long-term stability of the panels. It is recommended that the minimum thickness of the finished panel should be around 100 millimeters. If the thickness is too thin, its structural strength and insulation performance may not meet the usage requirements under long-term loads and harsh environments. If the core material density is also at a low level at this time, the overall performance of the panel will be even weaker, and structural safety risks may easily arise under the long-term complex stress effects of photovoltaic module weight, wind pressure, loads, etc.