Specifications:
The SEMISANDWICH PSE GRAFITE is an insulation sandwich structure system composed of a sintered expanded polystyrene sheet with a graphite additive, compliant with Standard EN 13163, and coupled with a EUROSTRAND OSB panel. The system is designed to provide thermal insulation with a thermal conductivity of 0.031 W/mK at 10°C. It has a compression resistance of 100 kPa according to EN 826.

Procedures and Standards:
The product complies with several standards, including EN 826, EN 12939, EN 12086, EN 13501/1, and EN 300. The fire performance is classified under Euroclass E.

Physical Properties:
The panel dimensions are 2,440 mm in length and 1,200 mm in width. The bulk specific gravity ranges from 610-660 kg/m3. The modulus of elasticity is 5,000 N/mm2 for the main axis and 2,000 N/mm2 for the secondary axis. Bend resistance is 3,500 N/mm2 for the main axis and 1,400 N/mm2 for the secondary axis.

Performance Characteristics:
The water vapour diffusion resistance is greater than 2.0, and the fire resistance classification is B2. The thermal conductivity is 0.13 W/mK. Dimension variations due to humidity are specified, with a length change of +0.10-0.15% and thickness change of +5.0-1.5% at 85% relative humidity.

Panel Thickness and Thermal Transmittance:
The SEMISANDWICH panels are available in various thicknesses, ranging from 30 mm to 169 mm, with corresponding total thicknesses including OSB ranging from 42 mm to 172 mm. The thermal transmittance values (U) range from 0.92 to 0.19 W/m2K, depending on the panel thickness.