Clients usually order the external casing of the balcony along with its glazing. The outer sheathing has the goal of additionally insulate the structure and give it a more presentable look. In this case, materials are used resistant to temperature and atmospheric phenomena. The installation of them requires the presence of a wooden or metal frame. One of the materials is attached to the frame: corrugated board, siding or plastic lining. You can order the SRO tolerance for especially dangerous work in Nizhny Novgorod at favorable prices at the exiled link.