The Millennium Centre, Cardiff Bay

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Millennium Centre website

Used for: Exterior wallsMaterial used: SlateSourced: North WalesSustainable?: From ‘waste’ created by the historic slate industry (90% of slate cut from the mountainside for roof tiles was declared not good enough and thrown away).

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Used for: Interior detailMaterial used: Oak, Ash, Beech, Sycamore, Alder, Birch, Chestnut and Cherry woodsSourced: mid-WalesSustainable?: All woods come from renewable sources.

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Used for: Roof detailMaterial used: Stainless steelSourced: Made near Pontypool.Sustainable?: The steel would have been made from iron ore. This comes from mining in other countries. It is a finite resource.

Top 4 Countries – iron ore

production

Estimated iron ore production in million metric tons (2006)

China 520Brazil 300

Australia 270India 150

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Used for: Windows for decoration and to allow natural light through.Material used: Sheets of glass stacked together and fused in a kiln to form solid blocks.Sourced: SwanseaSustainable?: Glass is mainly sand, heated to an extremely high temperature.

© Photolibrarywales.com

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