Rock wool is a commonly used thermal insulation material, widely applied in construction, industrial pipelines, and power facilities. Choosing the appropriate rock wool specifications can ensure energy-saving effects, ease of construction, and long-term stability of a project. This article will analyze the common specifications and applications of rock wool in detail to help companies and project owners make informed decisions when selecting materials.

I. Common Classifications of Rock Wool Specifications

The main specifications of rock wool are as follows:

1. Rock Wool Boards: Commonly used for insulation of walls, roofs, and pipes. Typical dimensions are 1200mm × 600mm, with thicknesses ranging from 20mm to 100mm, suitable for large-area construction.

2. Rock Wool Pipes: Used for pipe insulation, offering good adaptability and ease of construction. Common specifications include Φ100mm, Φ150mm, and Φ200mm.

3. Rock Wool Felt: Used for insulation of air ducts, air conditioning systems, and other equipment. Common thicknesses are 50mm, 75mm, and 100mm.

II. Key Considerations for Selecting Rock Wool Specifications

When selecting rock wool specifications, the first step is to determine the appropriate model based on the actual application scenario. For example, in building wall insulation, rock wool boards with a thickness of 50mm to 100mm can be selected, offering good insulation performance. For pipes and ducts, rock wool pipes and felts of corresponding specifications need to be selected.

III. Thermal Conductivity of Rock Wool

The thermal conductivity of rock wool is typically between 0.034W/(m·K) and 0.045W/(m·K). This low thermal conductivity makes it a very effective insulation material. When selecting rock wool specifications, the material's thermal conductivity must be considered to ensure the system's energy-saving effect.

The lower the thermal conductivity, the better the insulation effect: For low-temperature pipes and equipment, selecting rock wool boards or pipes with lower thermal conductivity can better maintain temperature stability.

IV. Compressive Strength of Rock Wool

The compressive strength of rock wool is typically ≥50kPa. In building applications, rock wool with higher compressive strength is suitable for insulation applications subject to significant external forces, such as roofs and floors bearing the weight of the upper structure.

V. Fire Resistance of Rock Wool

Rock wool is an inorganic material with natural fire resistance. Its fire resistance typically meets the Class A non-combustible standard, effectively isolating ignition sources and preventing the spread of fire.

High Fire Resistance: Using rock wool in building and industrial projects can effectively improve the fire resistance rating of buildings and ensure fire safety.

VI. Environmental Performance of Rock Wool

Environmental friendliness is one of the important standards for modern building materials. Rock wool is non-toxic and harmless, complying with international environmental standards such as RoHS and REACH. The material does not contain harmful substances and can provide excellent insulation for buildings without releasing harmful gases.

VII. Recommendations for Selecting the Appropriate Rock Wool Specifications

When selecting the appropriate rock wool specifications, the following points should be considered:

Application Areas: Choose the appropriate type of rock wool (e.g., rock wool board, rock wool pipe, rock wool felt) based on different construction needs.

Thickness Selection: For building insulation walls, 50mm to 100mm thick rock wool boards are generally recommended; for industrial pipelines, choose 50mm or 75mm thick rock wool pipes.

Thermal Conductivity: Select rock wool materials with low thermal conductivity based on energy-saving requirements.

Compressive Strength: Select rock wool materials with higher compressive strength based on the pressure conditions of the application.

Summary

Rock wool, with its excellent thermal insulation, heat insulation, flame retardant, and compressive strength properties, has been widely used in construction, industrial pipelines, and other fields. Selecting the appropriate rock wool specifications can ensure the energy efficiency, construction quality, and safety of the project.