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 IS THE LUCID CHOICE FOR LUCENT

Roofing

WELSH SLATE IS THE LUCID CHOICE FOR LUCENT

Prior to its development, the triangular site at Piccadilly Circus was a mixture of 13 buildings of different ages, architectural styles, listings, ownerships and uses.

Read Article
thumbnail image related to WELSH SLATE EARNS A DEGREE OF LONGEVITY AT KING'S COLLEGE

Roofing

WELSH SLATE EARNS A DEGREE OF LONGEVITY AT KING'S COLLEGE

Careful recording of the existing diminishing course arrangement allowed it to be re-established, with discreet additional ventilation provided at the eaves and ridge to improve airflow across the roof void. In addition, the PV panels were laid on top of

Read Article
thumbnail image related to WELSH SLATE WINS THE HEARTS OF PARISHIONERS, AND AN AWARD PLACE

Roofing

WELSH SLATE WINS THE HEARTS OF PARISHIONERS, AND AN AWARD PLACE

Largely rebuilt in the early 14th Century with rubble and stone slate roofs, the church is an important landmark with a distinctive (and rare) arrangement of two separate towers

Read Article
thumbnail image related to DANETRE DOES A WELSH SLATE DOUBLE

Roofing

DANETRE DOES A WELSH SLATE DOUBLE

The reroof of a community hospital with Welsh Slate not only won the specialist contractor a place in the finals of a national award scheme but also enabled its apprentice roofers to get up close and personal with a Grade II listed project.

Read Article
thumbnail image related to CLARKE ROOFING RISE TO THE WELSH SLATE CHALLENGE AT ST LUKE'S

Roofing

CLARKE ROOFING RISE TO THE WELSH SLATE CHALLENGE AT ST LUKE'S

Welsh Slate was the original roof covering when the Neo-Norman flint and stone church was built by Thomas of Ryde between 1858-1861

Read Article
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 SLATE'S FFESTINIOG ROOFING SLATE FEATURES AT RHS CHELSEA FLOWER SHOW

Roofing

WELSH SLATE'S FFESTINIOG ROOFING SLATE FEATURES AT RHS CHELSEA FLOWER SHOW

Blue Grey roofing slates from Welsh Slate’s newly re-opened Ffestiniog quarry feature alongside decorative aggregates and Breedon Golden Amber self-binding gravel from Breedon Special Aggregates on the RBC Brewin Dolphin Garden designed by acclaimed garde

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
See all news & case studies