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Roofing
- Natural Roofing Slate
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- Cladding
- Natural Stone Products
- About Us
- Case Studies
- Videos
- Technical Support
- Contact Us
- Request a Callback
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Roofing
- Roofing
- Natural Roofing Slate
- Clay Roof Tiles
- Roofing Accessories
- Cladding
- Natural Stone Products
Cwt-y-Bugail
Cwt-y-Bugail slates have a distinctive dark blue/grey colour and attractive riven texture which make them highly sought after.
- The Cwt-y-Bugail quarry in Ffestiniog, North Wales has been producing slates since the mid 19th century
- The quarry is renowned worldwide for both its roofing and architectural slate
- During World War 2, many of Britain’s most valuable paintings were secretly stored in its caverns for safe-keeping!
- Cwt-y-Bugail slates come in standard sizes in 3 thicknesses:
- Capital grade (5.5mm nominal thickness)
- County grade (7.5mm nominal thickness)
- Celtic grade (9.5mm nominal thickness)
- BS EN 12326-1: 2014 (W1, S1, T1) certified
- BS Kitemark certified
- These slates are generally expected to outlive the life of a building and have a life expectancy measured in centuries
- Backed by a 100 year guarantee
- We offer an Accredited CPD Seminar on 'Welsh Slate as a Roofing Material' - Book Now
Product Detail
Welsh Cwt-y-Bugail Slate Cladding
This is one of the most unusual and visually striking Irish building restorations that LBS have supplied. The Old Head of Kinsale Signal House on the Cork coast has, in 2015, been reborn as a Museum a…
View Case Study| Colour and Finish | Blue Grey |
| Available in Sizes | 500 x 300mm (Other Sizes on request) |
| Available in Grades | Celtic, County and Capital |
| Nominal Thickness | Celtic 9.5mm, County 7.5mm, Capital 5.5mm |
| Minimum PItch | 22.5 deg for standard 100mm h/lap *normal exposure only*(for pitches below 22.5 deg please consult LBS Technical Dept) |
| Maximum Headlap | All LBS slates are holed for 100mm head-lap |
| Alternative Headlaps | For availability and advice please contact LBS |
| Gauge | 200mm for slate pre-holed for 100mm head-lap |
| Batten Size | Please refer to BS 5534 or SR 82:2017 |
| Nails | Copper, Aluminium or Silicon Bronze |
| Slate Dimensions/ Grade | 500x300mm Celtic Grade | 500x300mm County Grade | 500x300mm Capital Grade |
| Weight per sqm Laid (kg) | 53.62 | 46.98 | 37.01 |
| Slates per sqm at 100mm h/lap | 16.6 | 16.6 | 16.6 |
Datasheets and Certs
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Cwt-y-Bugail Capital (5.5mm) Welsh Slate Datasheet(0.30mb)
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Cwt-y-Bugail County (7.0mm) Welsh Slate Datasheet(0.31mb)
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Cwt-y-Bugail Celtic (9.0mm) Welsh Slate Datasheet(0.30mb)
