- Softly outlined shapes. Lower height of the profiles allows for the better light penetration.
- Multichamber construction. Three chambers provide good insulation and noise protection.
- Two-levelled seals with the slope of 15 degrees make one surface with the profile and guarantee perfect water removal.
- Special seal with the chamber protects against humidity and air penetration.
- Profile walls thickness in accordance with RAL standards.
- Ideally smooth surfaces made of pvc - material totally resistant to the influence of afmosferic conditions as well as to ageeing which doesn't demand painting.
- Fitting notch placed on the 13mm axis allows to use the stronger elements of the fittings.
- Special construction of the sash reinforcement guarantees ideal statics and security.
- Additional ribbing in the frame assures the stable fixing of the fitting fastteners.
- Perfect water outflow thanks to appropriate construction of the front chamber of the frame.