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Rock Wool Board for Container Houses

Admin September 16, 2026

The rock wool board used in container houses is an inorganic thermal insulation material made from natural basalt slag and other raw materials through high-temperature melting and fiberization. It has characteristics such as thermal insulation, fire resistance, and sound absorption, with prices varying by region, brand, and specification.

I. Characteristics and Advantages of Rock Wool Boards Rock wool boards are primarily made from natural basalt slag and are manufactured through a high-temperature melting and fiberization process, resulting in a porous fibrous internal structure. This structure endows rock wool boards with multiple functions:

  1. Thermal Insulation: The porous structure effectively reduces heat conduction, minimizing indoor-outdoor heat exchange, making it suitable for energy-saving building scenarios.
  2. Fire Resistance: As an inorganic material, rock wool boards achieve an A-grade (non-combustible) fire performance rating, with a high fire resistance limit, significantly enhancing building fire safety.
  3. Sound Absorption: The fibrous structure absorbs sound waves, reducing noise transmission and improving living or working environments.

II. Price Differences and Influencing Factors The price of rock wool boards is significantly influenced by factors such as region, brand, and specification:

  • Regional Differences: Prices in Beijing are approximately 180.00 yuan per square meter, in Lishui, Zhejiang, they are 200.00 yuan per square meter, in Weifang, Shandong, they are 139.00 yuan per square meter, and in Kunming, Yunnan, there are various specifications ranging from 18.00 yuan to 50.00 yuan per square meter.
  • Specification Impact: Rock wool boards with different thicknesses, densities, or surface treatment processes have significant price differences. For example, products with high density or aluminum foil facing have higher costs.
  • Brand and Quality: Products from well-known brands or those with special certifications (such as A-grade fire resistance) are generally priced higher than ordinary products.

III. Fire Safety Requirements for Container Houses Container houses are widely used in scenarios such as construction site dormitories and field operation housing due to their environmental friendliness, energy efficiency, and flexible assembly. However, some container houses pose fire hazards, such as the illegal use of flammable materials, rapid combustion rates, and difficulties in evacuation. To meet fire safety standards, container houses must use A-grade fire-resistant materials such as rock wool boards and fireproof cotton as fillers to ensure that the fire resistance limit meets regulatory requirements. This measure effectively delays the spread of fire, buys time for personnel evacuation and firefighting, and reduces fire risks.

IV. Application Scenarios and Selection Recommendations Rock wool boards are suitable for container house projects with high fire and thermal insulation requirements. When selecting, note the following:

  1. Confirm that the product has an A-grade fire performance rating and review the test report;
  2. Choose an appropriate thickness (usually 50mm-100mm) and density based on the usage environment;
  3. Prioritize products from reputable manufacturers to avoid safety hazards caused by purchasing low-quality materials at low prices.