Copper

Copper is a widely known traditional metal, so why choose it?

Adds value
Aesthetics
Longevity
Cost cycle
Recycle value
Traditional

At Copper Roofing l Architectural Metalformers we use alloy 122, which is available in various tempers, finishes and gauges. We choose half hard copper due to its superior formability.

Characteristics

Dependant on differing factors (atmosphere and environment) Copper will develop a natural patina finish over time.

The physical weathering of copper is due to a direct attack of airborne sulphur compounds. Within the first few weeks of atmospheric exposure it is normal to see some colour changes. During continued exposure the colour changes entirely and is replaced by a typical rich brown colour, known as an oxidized finish.

It is important to note that when using copper in cladding; exposed horizontal surfaces will patina more rapidly than a sloping surface, such as a roof. The advantage of the naturally forming sulphate patina is that it is highly resistant to all forms of atmospheric corrosion, once formed completely.

Specifications

Temper: Half Hard (Mill Finish)
Gauges: 0.55mm – 0.70mm
Grade/ Alloy: DHP 122 Copper (Phosphorous De-Oxidised Non Arsenical Copper).
(Manufactured to BS 2870, C106 and all equivalent specifications).

This grade of Copper is the ‘General Purpose’ option, commonly used where brazing or welding is required such as tank manufacture. Also used within the building industry for roofing, guttering, flashings and architectural features.
The Oxygen content of the Copper has been removed through a process of Phosphorous De-Oxidisation, enabling brazing & welding without Hydrogen embrittlement occurring in the joined area. This process also lowers the electrical conductivity of the Copper from 100% IACS to approximately 85% IACS.

Members Area