why the thermal insulation of XPS foam is superior ?

Extruded Polystyrene (XPS) foam is known for its superior thermal insulation properties compared to other insulation materials. Several factors contribute to the excellent thermal insulation performance of XPS foam:

Reasons for Superior Thermal Insulation of XPS Foam:

1. Closed-Cell Structure:

   XPS foam has a closed-cell structure, which means the cells within the foam are completely closed off from each other. This closed-cell configuration minimizes heat transfer through convection, making XPS foam an efficient thermal insulator.

2. Low Thermal Conductivity:

   XPS foam has a low thermal conductivity, typically ranging from 0.024 to 0.038 W/(m·K). This low thermal conductivity value indicates that XPS foam is a highly effective insulating material that resists the flow of heat.

3. High R-Value:

   The R-value of an insulation material measures its thermal resistance. XPS foam has a high R-value per inch of thickness, indicating its ability to provide significant thermal insulation even in relatively thin layers.

4. Moisture Resistance:

   XPS foam is resistant to moisture absorption due to its closed-cell structure. Moisture penetration can reduce the effectiveness of insulation materials, but XPS foam maintains its insulation performance even when exposed to moisture.

5. Dimensional Stability:

   XPS foam is dimensionally stable, meaning it maintains its shape and insulating properties over time. It does not shrink, warp, or degrade easily, ensuring long-term thermal insulation performance.

6. High Compressive Strength:

   XPS foam exhibits high compressive strength, making it suitable for applications where the insulation material may be subjected to load-bearing or heavy weight. Its structural integrity contributes to long-lasting thermal insulation.

7. Resistance to Chemicals and Corrosion:

   XPS foam is resistant to many chemicals and does not corrode, ensuring its durability and maintaining its thermal insulation properties in various environmental conditions.

8. Fire Retardant Properties:

   XPS foam is inherently fire retardant, providing an additional layer of safety in construction applications. It has a high ignition temperature and does not contribute significantly to flame spread.

1. Ease of Installation:

   XPS foam is lightweight and easy to handle, making it convenient to install in various applications. Its rigid structure allows for precise fitting and secure placement in walls, roofs, and floors.

2. Versatility:

   XPS foam is versatile and can be used in a wide range of applications, including building insulation, thermal barriers, roofing systems, and foundation insulation.

Due to these factors, the superior thermal insulation properties of XPS foam make it a preferred choice for various construction and insulation projects where high insulation efficiency, durability, and moisture resistance are required.And it is recyclable,it can be recycled by XPS granulator.