It is a concealed sash system that could be integrated to ST 60 system.
The system provides concealed sash look through just one special designed gasket, where ease-of-use installation and application is possible.
Beside using standard hinges, the use of concealed hinges will ensure a delicated outlook inside and outside of the building.
Water Tightness
E 900 (900 Pa)
Resistance to Wind
A3
Thermal Transmittance Coefficient
Uw: ? 2,1 W/m2K/Uf: ? 3,5 W/m2K
Air permeability
Class 4 (600 Pa)