WELSH SLATE LTD

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 Ltd 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.

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 Slate .
ARCHITECTURAL Stone Slate
CILLS Slate .
CILLS Slate Welsh Slate
CLADDING TILES Stone Slate
CLADDINGS EXTERNAL Cut Facing Stone Slate
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 .
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 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 helps bring dignity to a pioneering palliative care facility

March 2019

Roofing and cladding features on The Prince and Princess of Wales Hospice.

Welsh Slate has been specified for its aesthetics and robustness, for the roof and innovative cladding of a ground-breaking new hospice.

The £21 million Prince and Princess of Wales Hospice in Glasgow’s Bellahouston Park features Welsh Slate’s Penrhyn Heather Blue Celtic grade 270mm x 180mm roof slates which are complemented by a cladding veneer of the same colour over a total of 1,400m2 of the outer façade layer of ‘protective’ eaves and bedroom terraces.

This complements the buff-coloured Petersen brickwork and bronze-coloured metal panels used on the inner layer of the façade. Projecting eaves features in the same slate are also utilised on the northern and southern gable facades to express the prominent building ends. In addition, Welsh Slate Penrhyn Heather Blue walling features on a large internal chimney hearth.

The Welsh Slate materials were specified, for the first time, by Ryder Architecture for the 5,840m2 building which comprises a 16-bed in-patients’ unit including young adults’ bedrooms, with associated support and family space including large kitchens, day services and out-patients’ units, educational area, and administration and clinical offices over three storeys.

The Scandinavian-inspired hospice is the first in the UK to follow the Sengetun (meaning bed courtyard) model of care which promotes a home-from-home environment that also allows patients privacy when required. The model is based on research that suggests the aesthetic deign of a healthcare building has a measurable impact on patients’ wellbeing.

Ryder and main contractor Balfour Beatty delivered a purpose-built, innovative and exemplary palliative care facility that delivers form as well as function in response to the brief which called for a warm, welcoming and non-clinical entrance and interior in a quality environment with interior and exterior materiality.

The hospice supports 1,200 patients and their families from a geographical area that spans Glasgow, East Renfrewshire, Cambuslang and Rutherglen, with a population of about 345,000. With something of a civic presence, it is set in 7.5 acres of parkland on a site gifted to the charity by Glasgow City Council, with a form that mediates between the city it serves and its parkland setting.

After more than 30 years of adapting and adjusting in the old hospice building in Carlton Place, the new building enables the organisation to expand its services and offer 21st Century palliative care to young people over 16 years for the first time.

To negate the potential sprawl of the complex brief and adjacencies, the accommodation was reduced to four interconnected villas that reduce the overall perception of the massing to a human scale.

Project architect Alastair Forbes said: “The building envelope has been designed with a number of key aims in mind. The primary aim is to provide a building of dignified quality commensurate with the importance of the site and the building use, and a robust building that requires, wherever possible, minimal maintenance.

“The quality of the materials proposed is critical to the success of the project and the manner in which the materials are detailed is significant in providing suitable scale and presence for the building on the site. It has to address its context successfully, both in terms of the immediate site of Bellahouston Park and also the important Hazelwood and Dumbreck Conservation Areas directly adjacent.”

He added: “The protective nature of the building is realised in a ‘loggia’ or ‘veranda’ that runs around the whole building, providing a transition zone between the interior spaces and the surrounding landscape. This is an integral space for patient use and inhabitation.

“Slate is used for the external skin of the building which reinforces the protective nature of the building envelope. One senses the physical weight of the building on the outside at the same time as the ethereal quality of the light-filled interior spaces. These protective elements differ in density and permeability depending on the interior functions, sunlight and the site conditions.

“The ‘purple/heather’ tones of the Penrhyn slate were essential in linking the landscape and building interior whilst avoiding an overtly dark-coloured building that would not be suitable for the building’s function.”

The Welsh Slate roof slates were laid with 50mm x 3.35mm copper clout nails over timber sarking boards with mitred slate hips to a 38° pitch over eight months and 1,535m2 by specialist sub-contractor Braisby Roofing, while the cladding system was devised and installed over 12 months by Stonescreen, specialists in natural stone rainscreen systems.

The company custom-designed the support structure and frames to hold the slate composite panels which used Stonescreen Aerolite© technology as the base. This is engineered with a combination of cellular glass reinforced with layers of glass fibre to produce a very high-strength/low-weight substrate which is typically faced with a thin veneer of natural or artificial stone.

In this case, the Welsh Slate was supplied to Stonescreen as more than 200 blocks weighing over half a tonne each and varying in length from 1,000mm to 1,600mm, in width from 500mm to 600mm and in depth from 200mm to 450mm. These were semi-processed – sawn both sides with the ends left natural.

The blocks were then cut to 20mm and foam glass material glued to each side of the slate. This was then cut through the middle using a band saw and flamed. Cuts of 3mm were achieved which made the final cladding panel 8.5mm Welsh Slate and 40mm foam glass.

Stonescreen director Gary O’Connor said: “The design and construction of the support structure was the most complex part of the cladding works. Attaching the cladding panels was relatively straightforward.”

Alastair said “The building fabric, wherever possible, has been used to enhance the environmental performance of the building which had to demonstrate low energy use and value for money over a lifecycle costing. The external walls and windows had to meet the standards set down in the revised Section 6 of the Scottish Building Standards, including standards for airtightness. In the detailed specification of the materials for the building, consideration was given to green issues such as low embodied energy, responsible sourcing, and sustainability/environmental performance.

Braisby Roofing’s managing director William Braisby said: “The length of the roof slope was a challenge and there was a lot of interface with other traders on site – joiners and single-ply roofers for example – but apart from that the project was straightforward. Both we and the client were extremely happy with the slate. It looks really good.”

Welsh Slate commercial director Michael Hallé said: “The cladding system used on this project is the first time a composite panel with a Welsh Slate veneer has been used. The overall appearance of the Welsh Slate on the project is stunning and it sits beautifully within the environment.”

Welsh Slate helps The Natural Stone Show to celebrate 25 years

February 2019

Products from all of the manufacturer’s architectural ranges will be on show.

Leading UK manufacturer Welsh Slate will exhibit its full range of architectural and roofing products at this year’s The Natural Stone Show at ExCeL London from April 30th to May 2nd.

Welsh Slate (stand F30) is exhibiting at the show, which this year celebrates its 25th anniversary as the only UK exhibition and conference dedicated to natural stone, under its new Breedon Group umbrella.

All-natural Welsh Slate lends itself to a peerless range of contemporary interior and exterior design applications.

Available in a wide range of colours and finishes, it is particularly well known for roofing in heritage, historic and high-end new-build projects.

But its aesthetic qualities for a myriad of other applications are increasingly being recognised by designers, developers and clients, with it recently featuring, for example, externally as cladding and roofing, and internally as a fireplace, at the ground-breaking new Prince and Princess of Wales Hospice in Glasgow.

Other design applications for Welsh Slate, which is as durable as it is beautiful due to its 500 million year-old pedigree, include flooring, walling, paving, landscaping, sawn scants, and cills and copings, and worktops and counters. Material can be purchased either finished or as raw scant.

The natural slate is available in Heather Blue, Heather Red, Heather Grey and Dark Blue Grey colours and is unfading and non-porous. It has a useful life of well over 100 years and comes with a 100-year warranty for the roofing products.

Now celebrating its 25th anniversary, the show has established a core visitor profile which will be enhanced by its co-location with Hard Surfaces, the exhibition that showcases the latest products and trends in the fast-moving field of surface design, widening the visitor profile and offering further opportunity to promote the use of natural stone.

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