Differences in the colour of natural surfaces such as TECU® Patina are not a shortcoming, but rather a sign of quality. Although these differences can be seen right after installation, they soon become less noticeable on exposure to the elements. After installation, the surface develops in the completely natural manner characteristic to copper.Īs a result of the manufacturing technology used, individual sheets can vary in colour from yellow green to blue green. Fabricating / processing marks on the material's surface are minimised and, even after folding and bending, the patina layer remains in good condition. This temporary yet robust transparent layer ensures long-lasting protection. TECU® Patina is now delivered with TSP surface protection. This gives cladding areas their excellent visual appearance. TECU® Patina surpasses the requirements of EN 1172 regarding tolerances and the most important material properties. Cu-DHP is outstandingly malleable, regardless of temperature or rolling direction. Cu-DHP is well suited to welding and soldering, and is minimum 99.9% pure copper.
It is made from Cu-DHP – oxygen-free, phosphorus-deoxidised copper with limited residual phosphorus. TECU® Patina sheet is manufactured in state-of-the-art production facilities to EN 1172 and KME's own strict guidelines. The unique developments occurring in TECU® Patina are exciting – just as modern architecture should be. The many different colour tones and shades eventually blend together, but only gradually. TECU® Patina is always extremely varied, just as you would expect from a natural surface. This process causes a patina layer to grow on top of a pre-oxidised copper surface – a process similar to the natural patination that occurs over a long period of time when copper is exposed to atmospheric conditions. Call VR Roofing for all of your copper roofing needs.In a specially-developed industrial process, TECU® copper sheets are patinated green on one side. Van De Hey Refined Roofing, LLC (VR Roofing) is a custom roofing company that proudly services the Appleton, Little Chute and the Fox Valley area, Sheboygan, Oshkosh, Madison, Milwaukee, Shorewood, Sheboygan, Oconomowoc, Verona, Waukesha, Green Bay, and De Pere areas in Wisconsin. In closing, you can achieve your desired color of copper roof patina, but it is not as long lasting as the natural patinas ar e. It will depend on the geographic characteristics as discussed above if you wish to maintain that chemically chosen patina. The copper roof starts out salmon pink brown and makes it’s way to the statue of liberty bright green.Īs I said before, you can alter the coppers color via chemical treatment but here’s the catch, unlike the natural progression of the color from salmon pink to bright green, when you do a chemical treatment to change the patina over the course of a few months, the processes will need to be repeated a certain amount of time later.
There is, however, a major caveat to that unnatural choice.Ĭoppers natural patina occurs as a gradual progression depending on the coppers physical orientation and the local weather and pollution levels on a grading scale of lighter and lighter greens. It’s even possible to choose the color of a coppers patina through chemical treatment. That being said it is still possible to use chemical treatments to advance this copper roof patina process. The environment will affect the color and the rate at which the copper changes colors. The thing about copper that a lot of people love is that its natural coloring is very sensitive to the air and certain elements of the air that are geographically relevant, as well as that areas humidity. To properly understand what’s involved in achieving a copper roof patina one must first understand copper.Ĭopper is an extremely durable and versatile metal that can last close to one hundred years and even after can be recycled and almost one hundred percent reused.
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