Copper Roof Turning Green

Use disposable equipment that you don t mind ruined.

Copper roof turning green.

Eventually the roof will even out to a brilliant green. This layer is known as the patina. Copper turns green because of chemical reactions with the elements. This layer known as a patina is incredibly thin.

Check with the original metal mfg. 3 tablespoons white vinegar 5 45 ml 1 teaspoon table salt 5 ml 2 stirred very well until the salt dissolved completely. The copper metal reacts with oxygen resulting in the formation of an outer layer of copper oxide which appears green or bluish green in color. Copper normally changes in appearance from a shiny red metal to a dull green.

Over time copper will naturally change colors transforming from a shiny brown color to darker browns then blues and finally greens after a number of years. James watts navarre florida. Its beautiful mature green patina gives the statue a graceful glow that seems to bring her to life as she stands over liberty island and the. Copper roofing is bright pink to begin with and in time it can gain a brownish color and then a nice blue green patina.

Unlike other destructive oxidation processes the patina acts as a protective layer and it does not cause any weakness in the metal. A word of caution. Copper can also turn gray brown or blue in some circumstances. The patina is due to the process of oxidation and the sulfur particles in the atmosphere.

3 let the copper soak for 30 minutes. Copper roofs naturally turn green from exposure to the elements. As the years pass and the roof ages the patina will thicken and change colors. When exposed to the natural elements such as wind and rain copper develops this patina which actually protects and preserves the metal underneath.

This change occurs as a result of a chemical reaction between the copper moisture and oxygen referred to as oxidation. This process will take several months or years depending on the atmospheric conditions in your area. 4 removed the copper and let it dry. I think that it has more to do with the alloy of copper than anything else.

The exterior of the statue of liberty is made of copper about the thickness of two pennies.