There is however a major caveat to that unnatural choice.
Patina roof usage.
That being said it is still possible to use chemical treatments to advance this copper roof patina process.
A patina is a natural process and therefore will not happen at a uniform rate.
Patinas can provide a protective covering to materials that would otherwise be damaged by corrosion or weatheri.
The patinas on leather goods are unique to the type of leather frequency of use and exposure.
If you are interested in this color i would highly recommend requesting a 7 8 corrugated sample panel in patina.
When you clean your copper roof use natural ingredients that will not destroy the patina as they remove the buildup and gunk.
The patina process starts the minute the copper is exposed to air and moisture and over time a very thin layer of corrosion develops on the copper which helps protect it against the elements and degradation.
Additionally the term is used to describe the aging of high quality leather.
Sun exposure the angle of installation and the amount of moisture from the morning dew can all cause differences in patina on a single roof.
Copper roofing even if it is installed at the same time as gutters and downspouts will not age at the same rate.
Patina can be used in exterior or interior applications.
The patina is extremely important for outdoor copper items like statuary and roofs but it does not necessarily protect from the general dirt and grime that builds up on any roof over time.
Copper roofs last more than 100 years due to oxidation and the patina that forms on the surface of the copper.