Striped steel profile, roll formed, Verolux patented, realized joining two aluminium coils. This profile, unique in its category and of exclusive Verolux production, is a variation of ALK1N/ALK2N. The presence of two separate coils allows the interruption of the thermal bridge giving a stronger insulation compared to standard profiles. It has an aluminium metal insert that gives it important properties of housebreaking prevention. The peculiarity of this profile makes it interesting in markets worlwide.