- Diversified appearance: standard with visible elements, semi-structural and structural;
- Constructive built: stick construction or unitized construction;
- Various functionalities: standard inward/outward, pivoting, sliding openings;
- Special curtains: skylights, canopies, pyramids or SPIDER-type elements;
- Energy usage: standard, high-isolation or double-skin facade (double glazing);
- Shading elements: fixed or movable blinds, brise-soleil;
