Copper Roof Turning Green

Copper roofs naturally turn green from exposure to the elements.

Copper roof turning green.

4 removed the copper and let it dry. This process will take several months or years depending on the atmospheric conditions in your area. James watts navarre florida. As the years pass and the roof ages the patina will thicken and change colors.

Check with the original metal mfg. Copper turns green because of chemical reactions with the elements. 3 let the copper soak for 30 minutes. Copper normally changes in appearance from a shiny red metal to a dull green.

This change occurs as a result of a chemical reaction between the copper moisture and oxygen referred to as oxidation. 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 can also turn gray brown or blue in some circumstances. Colors often include shades of copper green dark brown and turquoise.

Eventually the roof will even out to a brilliant green. Most of the roofs at uwf turned a green built about 1964. When exposed to the natural elements such as wind and rain copper develops this patina which actually protects and preserves the metal underneath. 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.

Unlike other destructive oxidation processes the patina acts as a protective layer and it does not cause any weakness in the metal. The patina is due to the process of oxidation and the sulfur particles in the atmosphere. 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. In about one year the roof turned a nice chocolate brown color except for the areas where they soldered it and got excess flux on the roof.

Use disposable equipment that you don t mind ruined. This layer is known as the patina. 3 tablespoons white vinegar 5 45 ml 1 teaspoon table salt 5 ml 2 stirred very well until the salt dissolved completely. I think that it has more to do with the alloy of copper than anything else.

A word of caution.