Why is elZinc sustainable?

elZinc: a long-lasting building material.

Zinc is a ‘living’ material, it protects itself by naturally developing a patina during the early stages of its life that guards against corrosion, and gives it self-healing properties making it extremely durable.  Its life span can exceed 100 years (depending on the surrounding atmosphere), indeed in wall cladding applications some experts estimate an expected life span of some 200 years.  In order to guarantee the longevity of this versatile metal, correct execution of the zinc cladding is a must.

elZinc: recyclable material

Zinc is 100% recyclable and can be reused a practically unlimited number of times, without the loss of any of its chemical or mechanical properties, or any loss in quality.

Note: All of the zinc by-products that are generated during the elZinc® production processes are recycled and reused, either in its own production processes or externally such as in the use of zinc oxide as a catalyst in the vulcanisation of rubber.

elZinc: sustainable material.

The production process is less energy intensive than other metals used in construction. Indeed, it is significantly less than in aluminium or copper production:

Aluminium 255 MJ/kg482 MJ/m2 (0.7 mm thick aluminium)
Cooper 70 MJ/kg375 MJ/m2 (0.6 mm thick copper)
Zinc 51 MJ/kg238 MJ/m2 (0.65 mm thick zinc)

Source: ‘Sustainable Construction: Green Building Design and Delivery’.

When used as the building envelope, it contributes to preserving natural resources through efficient use of energy, reducing greenhouse gases and minimising the use of existing zinc ore reserves.


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