Coloration is hardly guaranteed to be consistent. • Over the time, the replacement of a façade panel becomes challenging since it is hardly impossible to match the colour of Cor-Ten. • Thickness of panels necessary depends on the required durability. Cladding panels may be required to account for the expected loss of thickness due to corrosion, and compensate for it by increasing the thickness of the material. • Surface weathering of bare Cor-Ten steel typically leads to heavy rust staining on nearby surfaces like concrete, white walls, fabrics, etc.
Economic advantages: no maintenance cost, no need to re-coat, no coating costs. Easily formable and processed allowing to be used for architectural elements of all shapes with minimal constraints. Material is 100% recyclable. Reduced environmental impacts associated with Volatile Organic Compounds (VOC) emissions from paint coatings and cleaning functions required with painting.