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Penrhyn Quarry

United Kingdom
LL57 4YG
Julie Owen
Tel +44(0)1248 604206 Overview
Full details of RIBA approved CPD materials offered by Welsh Slate are available to auto-generate as PDF and include company contact information: Overview for Welsh Slate

Welsh Slate


Welsh Slate is the world's leading supplier of high-quality slate for a range of exterior and interior design applications. Over 500 million years old, the material is widely recognised as the finest natural slate in the world.


Welsh quarries have been supplying the world with the highest quality slate for hundreds of years. Welsh Slate own and operate the famous Penrhyn, Ffestiniog and Cwt-y-Bugail quarries in North Wales.


Natural Welsh slate is sustainable with a life expectancy of well over 100 years and can withstand the most extreme environmental and weather conditions. Combine this with its unique natural beauty, makes Welsh Slate the material of choice for an extensive range of diverse applications from roofing to hard landscaping.


It is the heritage and durability which sets Welsh Slate apart, this is derived from its density and the unique geological formation found exclusively in North Wales.Show more

CPD Material (2)

Factory Visit
Tour of Slate Quarry at Bethesda, Gwynedd
This tour of the Penrhyn Quarry at Bethesda, Gwynedd will take in the old workings at the North Quarry and current workings at the South Quarry. It will show the slate quarrying process and help you to understand the following topics:
- The history of slate extraction and quarry development issues
- Working practices and equipment used including block selection, sawing, hand and mechanical splitting, dressing and packing and storage. Plus opportunity for hands on slate splitting experience
- Quality checking procedures and audit trail
- Products produced including roofing products and aggregates

The tour is by invitation only, it lasts approximately 2 hours and is limited to 8 people. Protective clothing and equipment will be provided, some areas will have uneven surfaces which may limit access. Attendees can be collected from Bangor Railway Station which is 20 mins away. Overnight accommodation at a bed and breakfast can be arranged.
Knowledge level:
General Awareness
Material type: Factory Visit
Welsh Slate as a Building Material
This seminar aims to provide an understanding of the quality criteria required to specify natural slate as well as practical advice on design.
Knowledge level:
General Awareness
Material type: Seminar