Exotic Metal Products

Copper Products

Copper has been used for centuries in North America as an aesthetically pleasing building material. In the past it was typically used for roofing and adornment. However, recently copper has found a place as an architectural statement on building façades. The full range of applications can be achieved. Cladding offers many benefits to a building. Essentially the process of cladding applied in construction involves applying a piece of material over another in order to allow for an element of control in safely diverting water and wind. Cladding enables control over where water is run-off and it helps prevent water from infiltrating the interior of a building. It is mainly intended for roofs and exterior wall covering, windows, doors and for decorative purposes.

Exotic Metals For Roofing

The natural weathering of copper from its bright pink to the characteristic blue-green color (patina) is a direct consequence of its reaction to the corrosive action of the atmosphere. In industrial and seacoast atmospheres, the natural patina generally forms in 5 to 7 years. In rural atmospheres, with relatively clean air, patina formation may occur in 10 to 14 years. In arid desert environments, the patina formation may never occur and the copper surface may remain a dark brown or bronze color.

The pre-painted copper sheet products are available through a chemical conversion process whereby the top molecular surface of the copper sheet is enhanced and forced to produce a natural patina. (Some of the pre-painted sheets have a variation in their final color.)

Zinc Products

Environmentally friendly and fully recyclable, zinc can be used on both roof and wall applications. In terms of aesthetics, zinc cladding systems can be used with virtually any building material – timber, natural stone, brick, concrete and structural glass to name but a few. Standing seam, interlocking (with recessed joints) and overlapping vertical and horizontal panel systems are available in pre-weathered colours to provide a fully developed natural surface.

Zinc roofing has been used in Europe over the past 200 years and this proven longevity has been most attractive to clients and architects alike. Zinc, although relatively new to the North American market, is quickly generating interest and is being specified for increasingly more commercial and residential buildings. Zinc sheets are used in architecture for roofs and naturally weather for a maintenance-free life of over 60 years.

Although initial cost may be higher than other available materials, zinc does not peel or fade, which reduces the overall life cycle costs of the structure. As a natural metal, zinc is a versatile and lasting material that is becoming the builder’s top choice product.

Zinc’s subtle colour has been praised by architects who state its colour gets richer as the material adapts to specific atmospheric conditions and blends beautifully with other building materials such as concrete and wood. Zinc is also malleable, which allows it to be formed to achieve complex shapes and intricate details.