WELSH SLATE

PENRHYN QUARRY
BETHESDA
BANGOR
GWYNEDD LL57 4YG

Tel: 01248 600656
Fax: 01248 601171

Company Logo

Suppliers of: Roofing slates, Slate cladding, Slate paving, Walling, Sills and copings, Landscaping, Aggregates, Slate tiles for flooring, Fire surrounds/hearths, worktops/counters

Welsh Slate is the world’s leading supplier of high quality slate and supplies the UK construction market with highly durable roofing slates, facade cladding, slate paving, walling, sills and copings.  For internal projects, Welsh Slate manufacture and supply slate tiles for flooring, fire surrounds, bespoke kitchen worktops and counters.

COVID-19 UPDATE: We are open for business as usual and look forward to receiving your enquiries.

Environmentally Responsible

Welsh Slate’s Penrhyn quarry has been supplying slate worldwide since the 13th Century and has a long tradition of being specified by architects, and our client base also includes leading developers and interior designers. As a result of our work we are committed to conducting our business in an environmentally responsible manner by minimising the environmental impact and promoting sustainable development within its operations and services.

CPD Seminar

This seminar is designed to help architect and specifiers to understand the manufacturing process and the potential applications of Welsh Slate as a building material. It will explain the advantages and problems with slate and clarify the difference between differnent slates from around the world. The presentation will inform delegates of the variety of applications for Welsh Slate and provide information on the standards, accreditations, classifications and fixing methods.

CPD Factory Tour

The two hour tour will demonstrate the current slate quarrying and production processes while in addition giving you some hands on experience of working with a natural product. For enquiries or to arrange a CPD please telephone our sales office on the telephone number above or alternatively click here and fill out an enquiry form.

Our wide range of products include:

Roofing Slate

Welsh slate is proven to out last any other roofing material and is guaranteed to have a productive life in excess of 100 years. Colour variants are available and can be supplied up to 1.2 meters wide.

External Slate Paving

Welsh slate is available in a range of thicknesses from 30mm to 100mm and a variety of colours and textures to suit any application. Slate paving is frost-resistant and slip resistant certified to BS EN1341:2001

Welsh slate is weather and waterproof, unaffected by atmospheric pollution, sea air and organic growth and is colour-fast and non-fading, even in UV light. Certified and tested to BS EN 12326 - 1:2004

Welsh Slate Flooring

Welsh slate is a hard wearing natural floor tile for use in both domestic and commercial applications. The material is highly durable and easily maintained. As an unpolished floor tile Welsh slate is slip resistant to BS EN 1341:2001.

Facade Cladding & Masonry

Welsh slate facade cladding is ideal for use on either internal or external cladding products and is an ideal material for use on ventilated rainscreen cladding. Welsh slate masonry units are available in course heights of up to 180mm and to random or specified lengths with pillared or sawn face.

Our facade cladding is supplied to bespoke sizes and has been installed in diverse applications such as public buildings and churches to industrial and commercial developments and residential properties.

Stone Walling

Welsh slate makes an ideal walling product and is available as either quarried rustic walling with a naturally exposed face or as a smooth faced pillared walling face.

Sills & Copings

Welsh Slate can supply bespoke slate sills and copings for both refurbished and new-build commercial and residential properties and are available from stock and to order.

Aggregates and Landscaping

Slate aggregate has many outstanding technical properties. Welsh slate is available as a decorative aggregate in three colours. Our slate aggregate is also supplied for use in precast and ready-mixed concrete, road building and civil engineering.  Slate granules are used to produce bituminous roofing felts and artificial slate roofing tiles. We also supply Slate feature landscaping stones and monoliths.

Slate Fire Surrounds and Hearths

Welsh slate is the ideal stone for fire surrounds and hearths for solid fuel and wood burning stoves as well as open fires. Bespoke to your specific requirements, these fittings can be supplied in a range of colours, finishes and edge detail.

Slate Kitchen Worktops & Counters

Welsh Slate makes a beautiful and practical material for worktops and counters, combining very low liquid absorption levels with a luxurious warm feel to the hand.  The material is supplied as a completed wipe-clean slate worktop to consumers and contractors’ projects or as unfinished or polished scant to worktop manufacturers.

Further technical information, image galleries and product specifications are available through the Welsh Slate website or via the BPi Download Library.

ACCESS FLOORING Slate .
AGGREGATES Landscaping .
AGGREGATES Slate .
ARCHITECTURAL Stone Slate
CILLS Slate .
CILLS Slate Welsh Slate
CLADDING TILES Stone Slate
CLADDINGS and FACINGS See CLADDINGS EXTERNAL: .
CLADDINGS EXTERNAL Cut Facing Stone Slate
CLADDINGS EXTERNAL Fire Proof Non Combustible
CLADDINGS EXTERNAL Fire Resistant .
CLADDINGS EXTERNAL Fire Resistant EN 13501-1 .
CLADDINGS EXTERNAL Fire Retardant BS476 Class 0
CLADDINGS EXTERNAL Riven Slate Surface .
CLADDINGS EXTERNAL Slate .
CLADDINGS INTERNAL Riven Slate .
CLADDINGS INTERNAL Slate .
COPINGS Slate .
COPINGS Slate Welsh Slate
CRAZY PAVING Slate .
DRY STONE WALLING Slate .
FABRICATIONS Slate .
FIRE SURROUNDS . .
FIRE SURROUNDS Natural Stone Welsh Slate
FLAGSTONES Slate .
FLOORING Natural Stone Flooring .
FLOORING Natural Stone Flooring BS EN 12058 CE Marked
FLOORING Riven Slate .
FLOORING Slate Flooring .
GARDEN Aggregates Gravels, Slate
HEARTHS AND BACK PANELS Welsh Slate Hearths .
KITCHEN WORKTOPS . .
KITCHEN WORKTOPS Curved Worksurfaces .
KITCHEN WORKTOPS Natural Stone .
KITCHEN WORKTOPS Slate Welsh Slate
LANDSCAPING Aggregates .
LANDSCAPING Paving .
PAVING SLABS Patio Natural Slate .
PAVING SLABS Riven Slate .
PAVING TILES Welsh Slate .
RAINSCREEN SYSTEMS Slate .
ROCKERY STONE Slate .
ROOF VENTILATORS Flush Slate .
ROOF VENTILATORS Welsh Slate Bat Access Units
ROOFING Slate .
ROOFING SLATES . .
ROOFING SLATES BS EN 12326 CE Marked
ROOFING SLATES Natural Stone .
ROOFING SLATES Natural Stone ASTM S1 Classified
ROOFING SLATES Natural Stone BS 5534
ROOFING SLATES Natural Stone BS EN 12326-1 CE Marked
ROOFING SLATES Natural Stone BS EN 12326-1:2004 A1-S1-T1
ROOFING SLATES Natural Stone Heavy Slate
ROOFING SLATES Natural Stone Heritage and Conservation Applications
ROOFING SLATES Natural Stone Heritage and Conservation Applications England
ROOFING SLATES Natural Stone Heritage and Conservation Applications Scotland
ROOFING SLATES Natural Stone Heritage and Conservation Applications Wales
ROOFING SLATES Natural Stone Low Pitch Roofs
ROOFING SLATES Natural Stone Welsh Slate
ROOFING SLATES Roof Weathering Slates .
ROOFING SLATES Strip Slates .
ROOFING SLATES Ventilator .
SLATE Flooring .
SLATE Paving .
SLATE Rustic .
STONE FLOORING See Also FLOORING: Natural Stone Flooring .
TILES, FLOOR Riven Slate .
TILES, FLOOR Slate .
TILES, WALL Slate .
WALLING Riven Face .
WALLING Sawn Face .
WALLING Slate .
WALLING Slate Pillared Slate
WALLING Slate Welsh Slate
WINDOW SILLS See Also CILLS: .
WORKTOPS Welsh Slate .

WELSH SLATE TAKES ITS RIBA-APPROVED CPD ONLINE

October 2020

“Welsh Slate as a building material” is now available remotely.

A RIBA-approved CPD on the benefits of natural slate for roofing, cladding, walling, flooring, paving and aggregates is now also available online with Welsh Slate, part of the Breedon group.

The “Welsh Slate as a building material” presentation is now available for presentation by members of the leading manufacturer’s experienced technical sales team via Microsoft Teams to help architects and specifiers meet their CPD requirements during the Covid pandemic.

It profiles the company, explains what slate is and what its advantages and applications are as a building material, and in particular explains the changes to BS 5534, the roofing code of practice.

The CPD also gives advice on the specification and installation of a range of applications, including roofing, cladding, flooring, paving, walling and aggregates, and can be focused on particular product ranges to suit the audience.

As well as being naturally aesthetic, which is revealed in case studies, the CPD explains how high-quality natural slate is also highly practical – exceptionally durable, unaffected by extremes of temperature and resistant to acids, alkalis and other chemicals. It retains its colour, even in UV light, and is impermeable to water.

Sustainability is also addressed within the presentation as slate has low levels of embedded carbon when compared to manufactured landscaping and building products.

The “Welsh Slate as a building material” CPD is available to be presented remotely by Welsh Slate, or as before in person in compliance with Covid 19 guidelines, by calling 01248 600656 or emailing enquiries@welshslate.com.

Welsh Slate helps a listed cemetery lodge with a new life

September 2020

Five patterns of Penrhyn Heather Blues adorn the steeply-pitched roof.

A derelict Grade II listed cemetery lodge in West Yorkshire is being repurposed with the help of a multi-patterned Welsh Slate roof.

The Victorian building at Edgerton Cemetery in Huddersfield was built as a home and office for John Edward Sinclair Cousins, the registrar and superintendent of the new Edgerton Cemetery when it opened in 1855.

Designed by leading architects JP Pritchett and Sons, it is now being refurbished by the local council at a cost of £250,000, to include a complete re-roof, external repairs including new windows, and treatment of dry rot.

The original Welsh slates, which had been on the roof since it was built – some 165 years – required replacing like-for-like and so some 850 of Welsh Slate’s Penrhyn Heather Blues now adorn the gothic-style building.

To match the originals, they were cut into five different shapes by two experienced craftsmen from Welsh Slate distributor and natural roofing slate specialists Yates & Company using a portable slate guillotine (which they have produced and sell to contractors) in their yard at Clitheroe, Lancashire.

These were used on the visible elevations, each of which had its own sequence. Standard rectangular slates were used on inner elevations.

Founder and director Chris Yates was sent a photo of the original pattern slates and produced plywood templates to best replicate this, given the original slates were different sizes but the replacements had to be dressed from standard-size 500mm x 300mm County-grade slates.

He said: “There were five different patterns with various degrees of difficulty. Two of the patterns were relatively straightforward, two required different cutting actions which is time-consuming, and one (with the concave cuts) was very time-consuming and required even more patience.

“But we are used to complicated slate applications. We carry out coursing and holing and provide a battening plan for random diminishing course slate as increasing numbers of contractors outside the traditional random slate areas are either unsure of how to tackle random roofs or have not got the space on site to perform this operation.”

The task at Edgerton Cemetery involved a total of some 30 to 40 man hours.

Chris added: “Roofs with this amount of detailed patterning are unusual these days but I understand the building is listed and as such the original design had to be replicated as near as possible. The council and architect are apparently over the moon with the appearance.”

The 200m2 of slates were installed over 16 weeks in adverse weather using two copper nails per slate over replacement joists, membrane and battens by specialist sub-contractor Harwood Roofing based in Batley near Leeds.

Managing director Steve Harwood said: “Due to the 50° pitch of the roof we had to take extra care when carrying out works on site. Alongside our foreman we had two apprentices on the job and this was very challenging for them.

“All the slates were different shapes and patterns and required two nails each and had to be graded to ensure they sat flush on the roof. The fleur de lys ridges were bedded on in mortar and we had to use a ladder laid on the slates to access the ridge line and this was particularly challenging, getting the slates up on a 50° pitch.”

But he added: “The Penrhyn Heather Blue slate is a beautiful slate to look at, very eye catching, and worked well on this English heritage building.”

The local council has yet to decide the future use of the lodge.

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