OC seam belongs to the family of standing seam roofing system where the roof sheets are fixed to the structure without punching the sheets with the help of specially designed seam clips. OC seam roofing system provides longevity with very low maintenance cost and ensures adequate drainage from rain and solving water corrosion problems. The clips used in the system have movable features allows the panel to expand or contract with temperature and also resisting the wind uplift forces. The special clip seaming technology ensures leak free roofs for years to come.