Natural zinc

Appearance Other characteristics Documents Representative works

Solicitud de información

El Torcal de Antequera Nature Park Visitors' Centre, Málaga. Natural zinc roof (caption)

Appearance

The natural colour of zinc is light metallic silver. Exposed to the elements, this colour loses its shine gradually whilst darkening slightly over time to finish in a bluish-grey colour. This is due to the formation of a fine but highly adhesive layer of zinc carbonate - its patina.

This patina develops more slowly on facades than on roofs, taking approximately 2 years longer to reach its mature state on a facade than on a roof. For this reason, zinc in its natural state is usually more limited to roofs than facades (where pre-patinated zinc is normally used). However, installed on the roof, facade or sloped areas, the natural patinating process assures a uniform final finish even when covering complex shapes.

Visitors' centre, El Torcal de Antequera, Malaga (caption)

It is important to be aware of the colours of these materials when selecting other materials and finishes / colours (stone, lacquered woodwork, etc.) for the work so we recommend that you contact us to request new samples or even better, request a visit from our technical consultant so you can be shown new samples and samples that have been aged by exposure for these materials.

For more information on the different finishes available in zinc, refer to the other files on our metals.

Other characteristics

All the qualities associated with zinc can be applied to natural zinc. For more information, see the zinc file.

Natural zinc can be used in the following systems of ours:

Seam (roof and facade)
Bar joint
Butt joint (scales)
Facade panels
Cassette panels

El Torcal de Antequera Nature Park Visitors' Centre, Malaga. Natural zinc roof (caption)

More Information (natural finish titanium zinc)
Thickness on seam / butt joint* for roof:	0,65 y 0,8mm
Thickness on seam / butt joint for facade	0,65 a 0,8mm
Thickness in facade panels or cassette panels	0,8 a 1,0mm
Maximum manufacturing dimensions	Width 1000mm, unlimited length
Specific weight	7,2kg / dm³
Weight installed on roof or facade with seam / butt joint	5,2kg (0,65mm),5,6kg (0,7mm), 6,5kg (0,8mm)
Fusion point	419,5ºC
Thermal dilation	2,2mm / m / 100ºC
Traction resistance	>150N/mm²
Manufacturing standard	UNE EN 988