Composition :

• Structural liner tray Hacierco C 400.90 perforated type P
• Thickness according to span and loads
• Insulation: thickness 90mm (bottom of liner tray) and λ = 0.040W/m.K maximum
• Roof deck Hacierco 34 SR with a thickness of 0.75mm
• Mineral wool with  a total thickness of 200mm and λ = 0.037W/m.K maximum
• Multi layer bituminous waterproof membrane for vegetalisation

Performance :

• Thermal transmittance Up = 0.15W/m².K estimated