FFESTINIOG ROOFING SLATE IS BACK! DOWNLOAD ROOFING BROCHURE DOWNLOAD HARD LANDSCAPING BROCHURE ARRANGE A CPD FACTORY TOUR & SEMINAR ARRANGE A CPD SEMINAR FFESTINIOG BLUE GREY ROOFING SLATE GRACES ST PANCRAS STATION REQUEST A FREE SAMPLE PENRHYN HEATHER BLUE ROOFING SLATE TOPS HOLY TRINITY CHURCH
Slate

Penrhyn® Welsh Slate Roofing

Penrhyn® Heather Blue slate, also known as Bangor Blue and Penrhyn® Purple, is produced from a fine-grained slate deposit, laid down over 500 million years ago in the Cambrian period.

Penrhyn® Quarry in the heart of Snowdonia is one of the largest slate quarries in the world, and has been in commercial production for over seven centuries. The properties of the Penrhyn® slate allow it to be split into thin sheets but still retain its strength and unparalleled durability.

Penrhyn® slate comes in three thickness grades to suit your projects specific roofing needs.

Which grade of Penrhyn® Welsh Slate do you need?

Penrhyn® Welsh Slate roofing is available in three thickness grades: Capital, County, and Celtic. The thickness of the three specific grades is to suite the range of different roofing project requirements.

The quality of the stone will allow production of roofing slates in excess of 1 metre in length, but the majority of the production is focused on the core production sizes (500 x 300 mm, 400 x 250 mm and 300 x 200 mm) in three thickness grades; Capital (5.5 mm), County (7 mm), and Celtic (9mm). Each grade of slate has a subtly differing character, but all have the intrinsic quality that makes Penrhyn® Slate the envy of the slate world.

If you are a home owner, developer or specifier requiring advice or wish to purchase, our customer services team are here to help you

GET IN TOUCH

Penrhyn® Capital

Penrhyn® Capital

Capital Grade is the thinnest production of Penrhyn® Welsh Slate at 5.5 mm.

Only limited parts of our quarries will make this slate with its fine-grained riven surface. The thinness of the slate gives a flat uniform finish to the roof and was traditionally the material transported to the more distant markets such as continental Europe and even as far away as Australia and New Zealand.

Penrhyn® County

Penrhyn® County

County Grade is the main production thickness at Penrhyn® Welsh Slate at 7 mm thick.

The surface texture is similar to the Capital Grade, but the slightly thicker leading edge gives more focus to the slate on the roof. Traditionally sold in the Midlands and North West of England it is now sold widely across the World.

Penrhyn® Celtic

Penrhyn® Celtic

Celtic Grade is the thickest of Penrhyn® Welsh Slates production at 9 mm.

As its name suggests its natural home is on the roofs of buildings facing the prevailing westerly winds in Ireland, Scotland and Wales. The more textured surface and thicker leading edge give the slate a more rural appeal but the Celtic Grade slate does find its way into city centres where it can be used to make a statement.


Why Choose Penrhyn® Welsh Slate for your roof?

All Welsh Slate used in roofing is the very best quality, which is why it's guaranteed for 100 years and has a much greater life expectancy. So why choose Penrhyn® Welsh Slate?

Typically, if it comes to a choice between Cwt-y-Bugail and Penrhyn® slate, it boils down to the distinctive aesthetic qualities of the Penrhyn® slates. Their sumptuous heather tones and natural green markings create a beautiful roof which is capable of complimenting ultra modern and heritage architecture alike. The unique colours of Penrhyn® Welsh Slate, with its natural variations, combined with a performance measured in centuries is why it adorns building roofs across the world.

 

Penrhyn® Welsh Slate Roofing Key Facts

Modern building regulations require quality standards which Penrhyn® Welsh Slate exceeds;  gracing the roofs of the world with a performance measured in centuries.

 

Penrhyn® Welsh Slate...

  • holds the independent accreditation British Standard Kitemark and the Belgian ATG approval
  • absorbs less than 0.3% of water
  • has a high resistance to acid and alkali that helps keep its natural colour even in Ultra Violate light
  • it is non-combustible
  • it is compatible with all other building materials

 

KM 08014

Sales Office
Penrhyn Quarry
Bethesda
Bangor
Gwynedd
LL57 4YG

+44 (0) 1248 600656
enquiries@welshslate.com

Download our Roofing Brochure for a Comprehensive Guide to Technical Requirements and Standards

Download Brochure

Architects and Specifiers

  • Cases Studies
  • Data Sheets
  • CPD
  • NBS Source 
Find out more

Roofing Gallery

Find inspiration in our Roofing Gallery

View Gallery

Latest News and Case Studies

thumbnail image related to WELSH SLATE TOPS AN 18-YEAR CAMPAIGN TO RE-OPEN A LISTED LIDO

Roofing

WELSH SLATE TOPS AN 18-YEAR CAMPAIGN TO RE-OPEN A LISTED LIDO

Penrhyn Heather Blue roofing slates feature on the lido at Cleveland Pools, a Grade II* listed building that had been on the Buildings at Risk register.

Read Article
thumbnail image related to WELSH SLATE IS A PEERLESS PERFORMER IN A PIONEERING PENINSULAR TOWN

Roofing

WELSH SLATE IS A PEERLESS PERFORMER IN A PIONEERING PENINSULAR TOWN

A church in one of the first Conservation Areas in Wales has been given a new lease of life, Welsh Slate’s roofing slates have replaced their 150-year-old predecessors on the grade II listed church

Read Article
thumbnail image related to WELSH SLATE RANKED HIGH IN THE NAMING STAKES

Roofing

WELSH SLATE RANKED HIGH IN THE NAMING STAKES

It is some 90 years since the practice of calling different roof slate sizes by the titles of female aristocrats was lost to posterity after many centuries.

Read Article
thumbnail image related to WELSH SLATE HELPS A HISTORIC RAILWAY STATION GET BACK ONLINE

Roofing

WELSH SLATE HELPS A HISTORIC RAILWAY STATION GET BACK ONLINE

One of the earliest surviving railway stations in the world is enjoying a new lease of life, and TV stardom, thanks in part to Welsh Slate roofing slate

Read Article
thumbnail image related to WELSH SLATES HELP A NATIONAL MUSEUM WITH A NEW TOP HAT

Roofing

WELSH SLATES HELP A NATIONAL MUSEUM WITH A NEW TOP HAT

Almost 150 years after work first started on its purpose-built home, the Netherland’s national museum is enjoying a new lease of life with Ffestiniog Blue Grey roofing slate

Read Article
thumbnail image related to FROM FOGS TO FAME, WITH WELSH SLATE

Roofing

FROM FOGS TO FAME, WITH WELSH SLATE

Some 30,000 Ffestiniog Blue Grey slates were used by T&P Lead Roofing for the reroof of the roof of the Central range, while Penrhyn Heather Blue slates were used by Mundy Roofing on the eastern and western ranges.

Read Article
thumbnail image related to WELSH SLATE HELPS HISTORIC COUNTRY MANSION WITH A NEW LEASE OF LIFE

Roofing

WELSH SLATE HELPS HISTORIC COUNTRY MANSION WITH A NEW LEASE OF LIFE

Cwt-y-Bugail Dark Blue Grey roofing slates from the leading UK manufacturer have been used over 1,000m2 of roof at Bank Hall in Bretherton, Lancashire, which has been converted into luxury residential accommodation and exhibition spaces.

Read Article
thumbnail image related to WELSH SLATE TOPS ANTRIM ALMSHOUSES

Roofing

WELSH SLATE TOPS ANTRIM ALMSHOUSES

Welsh Slate’s Penrhyn Heather Blue slates feature on the front elevations of 31 almshouses in Carrickfergus, Co Antrim, Northern Ireland,

Read Article
thumbnail image related to WELSH SLATE TOPS AN ICONIC GATEWAY TO EUROPE

Roofing

WELSH SLATE TOPS AN ICONIC GATEWAY TO EUROPE

Welsh Slate’s Blue Grey Ffestiniog roofing slates have helped to transform St Pancras International from near demolition to an iconic gateway to Europe.

Read Article
thumbnail image related to WELSH SLATE TOPS A WORLD FIRST . . . AND MORE

Roofing

WELSH SLATE TOPS A WORLD FIRST . . . AND MORE

The world’s first iron-framed building, the forerunner of the modern skyscraper, will enjoy a new lease of life in the capital of England’s largest inland county, thanks to Historic England and Welsh Slate.

Read Article
thumbnail image related to ST MARTIN’S GOES BACK TO THE FUTURE WITH WELSH SLATE

Roofing

ST MARTIN’S GOES BACK TO THE FUTURE WITH WELSH SLATE

Welsh Slate has supplied roofing slates from both its Penrhyn and Ffestiniog quarries to provide a like-for-like replacement for an old 19th century roof at London’s famous St Martin-in-the-Fields church complex

Read Article
thumbnail image related to WELSH SLATE TOPS AN HONOURABLE RESTORATION AT LINCOLN'S INN

Roofing

WELSH SLATE TOPS AN HONOURABLE RESTORATION AT LINCOLN'S INN

Penrhyn Heather Blue slates from Welsh Slate feature on Lincoln’s Inn’s Great Hall, one of London’s most unique buildings

Read Article
See all news & case studies