Penrhyn 'Bangor Blue'®

  • Penrhyn Bangor Blue roofing slates are generally accepted as the best quality roofing slates found anywhere in the world
  • Produced at the Penrhyn quarry outside Bethesda since the late 1700s
  • The slate deposits in this quarry are extremely pure and free from damaging impurities
  • Penrhyn slate is an attractive purple or heather blue colour
  • Seen on many of the world’s most prestigious buildings – from Buckingham Palace in London to St. Patrick’s Cathedral in Dublin
  • Bangor Blue 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
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Size Options

Price available on enquiry

Welsh Slate is popular in heritage and conservation projects to replicate the original slate used
The timeless beauty and unique qualities of Welsh Slate make it ideal for a range of house styles

Product Detail

Palladian Style Home Cultra Co Down

Bangor Blue Modern House

Described as 'Irish Palladian' in style this gorgeous house in Cultra Co Down is slated with Bangor Blue 500x300 slates.  The owners of the house Colin and Barbara Barry always wanted to build their o…

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Colour and Finish 'Heather Blue' Riven Textured
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 (std) All LBS slates are holed for 100mm head-lap
Alternative Headlap 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) 62.75 48.80 38.35
Slates per sqm at 100mm h/lap 16.6 16.6 16.6