At a minimum seam height of 23 mm, the dual standing seam is rain proof without any additional treatment. The 25 mm high, dual standing seam produced with with pre-shaped courses has gained international acceptance. The profile is tilted and closed manually or by machine, using shaping machines. It is even possible to produce special shapes such as convex and concave curves or conical course without difficulty. The multitude of possible detail variations in the dual standing seam offers a subtle emphasis of shape and looks equally appropriate with both traditional architecture and modern designs.
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