Air permeability
|
Class 4
|
Water tightness
|
E900
|
Resistance to wind load
|
Class C5/B5
|
Acoustic performance
|
Rw (C;Ctr) = 47 (-1;-4) dB
|
Operating forces
|
Class 1
|
Mechanical strength
|
Class 4
|
Corrosion resistance of fittings
|
Class 5
|
Quality management
|
Certified to DIN EN ISO
9001:2008 |