As a result of the blue color Beypan XPS closed cellular material structure, extruded polystyrene foam thermal insulation can be used in a wide range of applications due to the following beneficial properties: 1- Thanks to its high compressive strength and bending strength, its thickness does not decrease over time. 2- It does not absorb water, and has high freeze-thaw resistance even in water. 3- XPS products can be recycled without mixing with other plastics. 4- High modulus of elasticity and dimensional stability. 5- It can be cut with all kinds of cutting tools, it does not crumble or cause wastage. 6- µ value suitable for the place of use thanks to optimum vapor diffusion resistance. 7- Thermal Conductivity Coefficient is lower than other thermal insulation materials. 8- It has a Closed Pore Cell Structure. 9- Thanks to its feature of not absorbing water, it has a continuous and undecreasing thermal conductivity value.