- Air tightness :Grade 8 (1.2m³/(m·h))
- Sound insulation performance :Grade 4 (35db)
- Thermal insulation performance :Grade 7 (1.9W/m²·k)
- Wind Pressure Resistance :Grade 9 (5Kpa)
- Thermal insulation performance :Grade 7 (1.9W/m²·k)
- Wind Pressure Resistance :Grade 9 (5Kpa)