TECU® Classic is the brand for bright, new, sheet and coil of TECU® architectural copper. The material retains its typical bright red copper lustre for a short period of time once installed. Natural weathering is a gradual and largely predictable process, yet always individual for each project.
The result is an ever-changing spectacle of interaction between the weather, light and the material's natural, lively language.
TECU® Classic sheet and coil is manufactured in state-of-the-art production facilities to EN 1172 and KME's own strict guidelines. It is made from Cu-DHP – oxygen-free, phosphorus-deoxidised copper with limited residual phosphorus. Cu-DHP is well suited to welding and soldering, and is minimum 99.9% pure copper. Cu-DHP is outstandingly malleable, regardless of temperature or rolling direction.
Both roof and façade grades surpass the requirements of EN 1172 regarding tolerances and the most important material properties. This gives cladding areas their excellent visual appearance.
TECU® Classic sheet and coil starts off with a bright and shiny copper surface. After installation, it develops a matt, dark brown surface due to natural weathering and oxidation. During initial weathering, before the dark brown oxidised layer is established on the copper's surface, a range of brown shades and even purplish hues can develop.