Aluminium feature special advantages, since it meets the high standards required for statics and enable production of narrow profile systems that ensure maximum light penetration into the building. On the outside, and inside, the profiles can be painted in different colours, which create different colour tones inside and outside of buildings. The profile features a hidden fitting system “Schüco AvanTec” creates a fine design of graceful lines that becomes a spotlight as the hinges are hidden in the window profile.