Thermal conductivity of vermiculite boards. The thermal conductivity of vermiculite boards ranges from 0.047 to 0.081 W/(m·K). When discussing the thermal conductivity of vermiculite boards, some may not understand what thermal conductivity means. Let's first clarify: thermal conductivity is the rate at which heat flows through a material per unit area, per second, per degree Celsius temperature difference across its surfaces, under steady-state heat transfer conditions. This value is measured in watts per meter per degree Celsius (W/(m·K)), or watts per meter per degree Kelvin (W/(m·K)). The thermal conductivity of vermiculite boards ranges from 0.047 to 0.081 W/(m·K).
The thermal conductivity of vermiculite boards is not entirely precise, as different boards exhibit varying values. Numerous factors influence this property, including: These include the quality of the vermiculite, the quality of the adhesive, the production method of the board, and numerous factors during the manufacturing process. Therefore, the thermal conductivity value for vermiculite boards is presented as a range rather than a precise figure. It is also possible for values to fall outside this range, as accurate measurement is challenging due to the influence of factors like temperature and humidity on the final reading.
Generally, materials with low thermal conductivity are classified as insulation materials. Therefore, the vermiculite boards discussed here refer to insulating vermiculite boards. China has clear regulations: materials with a thermal conductivity below 0.12 at temperatures under 350°C are designated as insulation materials, while those below 0.05 are classified as high-efficiency insulation materials. Thus, insulating vermiculite boards represent a highly efficient insulation solution. and you can confidently use this highly efficient insulation material.
