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By: Lagan Building Solutions  08/11/2010
Keywords: roofing materials

 Penrhyn 'Bangor Blues' are universally acknowledged as the best quality natural roofing slates in the world. Extracted from 590 million year old slate deposits at the Penrhyn quarry in Bethesda, North Wales, this slate is known as the 'Rolls Royce' of roofing materials. Bangor Blue slates have worldwide appeal and they are sold as far away as to Australia and New Zealand. It has a great affinity with Ireland and records from as far back as 1413 show that this slate was shipped and commercially sold into Ireland. Indeed, only a hundred years ago, most of Ireland's roofs were covered in slates from this famous quarry. Although also available in red and grey, most the slates from Penrhyn are an attractive heather blue or purple colour. They come in standard sizes of 500 x 300mm (or 20 x 12") although are available in any size. Penrhyn slates come in 3 thicknesses: Capital grade (6mm nominal thickness); County grade (8mm nominal thickness); and Celtic Grade (10mm nominal thickness). The Celtic grade slate was designed specifically with the Irish and Scottish markets in mind, where a thicker and more rugged aesthetic appearance is desired. The Celtic slate is also the most price competitive slate in the Welsh Slate range. Penrhyn slates fully conform to BS EN 12326: Part 1: 2004 and are generally expected to outlive the life of a building (when fixed in accordance with BS 5534 / ICP 2), and are covered by a 100 year quarry backed guarantee.

Keywords: roofing materials

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