D45 Commercial Steel Door Sets

Additional functions / performance characteristics Thermal insulation UD 1.9 W/ (m²·K)* Acoustic rating category With bottom profile with seal 41 dB With retractable bottom seal 37 dB Wind load Class C4 – C5 Driving rain leaktightness Class 1A – 7A Air permeability Class 2 – 4 Operating forces Class 2 – 4 Mechanical strength Class 4 Differential climate behaviour Class 2(d) – 3(e)