Cwt-y-Bugail

Cwt-y-Bugail 2017-08-08T12:21:04+00:00

Natural Slate Roof

Natural Slate Roof

Cwt-y-Bugail

The Cwt-y-Bugail quarry in the ffestiniog area of North Wales has been producing quality dark blue grey roofing slates from 1840. The quarry is located to the east of Blaenau Ffestiniog in Snowdonia National Park and is actually the highest industrial site in the UK. Although the site is now an open cast quarry, the stunning Welsh Slate was originally mined in deep caverns and pillars. During the Second World War, many of Britain’s most valuable paintings and treasures were stored deep inside the slate caverns for safe keeping!

Welsh Blue Grey Roofing SlatesThese slates have a dark “riven” texture and are famous, not only for roofing slate, but also as an architectural slate. It is popular all over the world, particularly in the south East of Britain and in mainland Europe.

Cwt-y-Bugial welsh slates share the quality and durability of Penrhyn slates, but are a different colour and texture. In Ireland these slates are often referred to as Porthmaddog slates (named after the port from which they were originally shipped).

These slates come in standard sizes of 500x300mm (20 x 12”), and in 3 thicknesses:

  • Capital Grade (5.5mm Nominal Thickness)
  • County grade (7.5mm Nominal Thickness)
  • Celtic Grade (9.5mm Nominal Thickness)

Cwt-y-Bugail roofing slates conform to BS 12326-1:2014 (W1, S1, T1), hold BS Kitemark accreditation and are generally expected to outlive the life of a building (when fixed in accordance with BS 5534 / ICP 2).

They are covered by a 100 year quarry backed guarantee.

For the Data Sheet, CLICK HERE.

Cwt-y-Bugail

The Cwt-y-Bugail quarry in the ffestiniog area of North Wales has been producing quality dark blue grey roofing slates from 1840. The quarry is located to the east of Blaenau Ffestiniog in Snowdonia National Park and is actually the highest industrial site in the UK. Although the site is now an open cast quarry, the stunning Welsh Slate was originally mined in deep caverns and pillars. During the Second World War, many of Britain’s most valuable paintings and treasures were stored deep inside the slate caverns for safe keeping!

These slates have a dark “riven” texture and are famous, not only for roofing slate, but also as an architectural slate. It is popular all over the world, particularly in the south East of Britain and in mainland Europe.

Cwt-y-Bugial welsh slates share the quality and durability of Penrhyn slates, but are a different colour and texture. In Ireland these slates are often referred to as Porthmaddog slates (named after the port from which they were originally shipped).

These slates come in standard sizes of 500x300mm (20 x 12”), and in 3 thicknesses:

  • Capital Grade (5.5mm Nominal Thickness)
  • County grade (7.5mm Nominal Thickness)
  • Celtic Grade (9.5mm Nominal Thickness)

Cwt-y-Bugail roofing slates conform to BS 12326-1:2014 (W1, S1, T1), hold BS Kitemark accreditation and are generally expected to outlive the life of a building (when fixed in accordance with BS 5534 / ICP 2).

They are covered by a 100 year quarry backed guarantee.

For the Data Sheet, CLICK HERE.

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Turret Detail
Slate Quarry North Wales
Roofing Slates On A Project In The UK

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