Glazing of balconies. Manufacturer of the SIAL system. The step between the balcony slabs is 3 meters. Two types of glazing. 1. Balcony glazing with internal fencing. Comprises: - standard element, - element of the lower floor, - partitions between adjacent balconies, - two options for the upper floor: with a balcony slab and with a polycarbonate slope. 2. Glazing with pillars supported on a balcony slab with an external metal fence.