Anti-intrusion class 4 security arched door. Mod. 884 Arched

884 arched security door has the same technical features and performances of model 884.
884 is the answer to people who requires the upmost security standard for his house or working place.
884 can be customized as all DI.BI. security doors, both in terms of finishing panels and installing solutions, offering our highest anti-intrusion class.
884 arched door is available for standard and out of standard dimensions, as a security door for internal or external installation.
Thermal insulation: 1,13 - 1,26 W/m²K
Acoustic insulation: 30-31 dB
Anti-intrusion: Class 4
Air permeability: Class 3
Resistance to wind load: Class C5
Watertightness: Class 9
Installation: Security doors for external installation.
Acoustic insulation notes: 30 dB with external panel 4mm thick, 31 dB with external panel 10mm thick.
Thermal transmittance notes: 1,13 W/m²K with external panel 20mm thick, 1,26 W/m²K with external panel 4mm thick.