Extruded polystyrene Fibrostir XPS is a thermally insulating material with closed-cell structure, manufactured from thermoplastic polystyrene in the form of sheets. Fibrostir XPS sheets are characterized by high and long-lasting thermal insulation properties, a low thermal conductivity coefficient (λ), zero moisture absorption, high compressive strength, and non-flammability behavior.
They maintain consistent density, dimensional stability, and excellent compatibility with construction materials (cement, plaster, mortar, anhydrite, sand), ensuring strong adhesion to concrete and paint.
| Length (mm) | Width (mm) | Thickness (mm) | m²/piece | m²/pack | Pieces/pack |
| 2,500 | 600 | 30 | 1.5 | 21.00 | 14 |
| 2,500 | 600 | 40 | 1.5 | 15.00 | 10 |
| 2,500 | 600 | 50 | 1.5 | 12.00 | 8 |