Thanks to its unique technical properties and its natural beauty, slate is suitable for any kind of project. CUPA PIZARRAS is the natural choice for architects and our commitment to quality has led us to become the world leader in natural slate.

Slate made for Architects

Its natural properties and unique textures have inspired the best architects around the world to create one of a kind projects where natural slate shines out with its own light.

Thanks to our commitment to quality, we have earned the trust of thousands of architects who reaffirm our leadership in the natural slate field.

Our constant search for new efficient and sustainable production processes have made us the world’s largest producer of natural slate. We have been working to improve since we opened our first quarry more than 125 years ago.



The harsh weather conditions of the UK demand quality construction materials. The unmatchable properties of natural slate make it the best choice for your roof, ensuring an excellent performance.

Natural slate is waterproof and extremely resistant: once installed, it requires virtually no maintenance. There is no other building material with such a long lifetime and guarantee.

Slate has been used as an architectural solution in the United Kingdom since the Middle Age to build castles and houses. Nowadays, the Scottish quarries are closed but our wide range of slates emerge as the perfect solution for your needs.


Our natural slate excels all international quality standards and is guaranteed by the most important international certifications: ASTM, NF, ATG, BBA.


Throughout our more than 125 years of experience we have been under constant search of new more efficient and sustainable production processes, making us world leaders in natural slate. This is why 1 of every 2 pieces of slate in the world has our name.


Unlike other brands, we in CUPA PIZARRAS produce and transform the natural slate in our own quarries and processing plants. This allows us to offer any type of natural slate for roofing or façade.


We have the largest slate reserves available to us, therefore, ensuring the continuity and availability of any of our products. This will prevent any colour or texture variations caused when different types of slate are used.


Due to its natural properties, slate only needs to be mined and hand crafted. No additional treatments needed. This substantially reduces CO2 emissions to the atmosphere.

Technical Support

In CUPA PIZARRAS there is an experienced team in natural slate available to you to advise you throughout your project development process. We are at your complete disposal to organise a visit to our company and to introduce you to our products.

Architectural solutions with slate

Slate is the best roofing and façade material known to man.

Slate is 100% natural, durable and resistant in comparison to any other artificial alternative. Clad your home the right way!

roofing slates


Its quality, wide range and easy installation is what makes our natural slate the ideal alternative for your projects, whether a renovation or a new construction, being more resistant than any artificial alternative.


The new CUPACLAD natural slate systems for facades are light and easy to install. It is the competitive and sustainable alternative and could be used in a new construction, in a restoration or a renovation, CUPACLAD systems are adaptable to any architectural design.


Thanks to the development towards a more sustainable architecture, our solar collectors are born. In addition to improving the power efficiency, it can also be adapted aesthetically to any project.

We are proud members of the following associations

The RIBA CPD Providers Network consists of over 500 manufacturers and suppliers, training companies and advisory organisations, who provide RIBA-approved CPD mostly free of charge, to architects and other specifiers.

The Royal Incorporation of Architects in Scotland (RIAS) was founded in 1916 as the professional body for all chartered architects in Scotland and is the foremost Institute in the country dealing with architecture and the built environment.

The UK’s fastest-growing library of digital product information with thousands of quality manufacturer’s BIM objects ranging from building fabric systems to mechanical and electrical objects.

RIBA Product Selector is the industry-leading online index of manufacturers’ product information offering free access to product catalogues, technical documents, design files, case studies and company contact details …

Support for Architects

Our commitment to quality has earned us the trust of thousand architects, installers and clients.

We are world leaders thanks to you. Our team of 1500 experienced professionals are focused on offering you the best service possible.

Specifier department

Our slate professionals are at the disposal of architects to organize meetings or visits to our quarries, launch new products and support the entire specification process.

We are committed to offering distinctive, innovative specification and solutions to construction industry professionals.

Technical support

Our technical support team is made up of skilled professionals who are dedicated to each of our products: Natural Slate, CUPACLAD® and THERMOSLATE®. It offers the customer a consultancy service where all of your questions will be answered.

continuous training architects

Continuous training

In CUPA PIZARRAS, we want help to keep you updated. Our natural slate experts will make sure to give you and your team the insight and tools needed to ensure problem free slate specification.

That includes our RIBA approved CPD seminar, which focuses on the characteristics and benefits of natural slate, the production process, specification and case studies.

Social networks

Our objective is to inform, listen and establish a relationship with our clients. If you have any questions, we are here to help you.

Looking for a distributor or installer? Provide us with the project location and we put you in touch with your nearest distributor / installer.

Resource centre

Product sample

Want to learn more about the product? Register as a professional and ask for a free sample.


Our natural slate experts will make sure to give you and your team the insight and tools needed to ensure problem free slate specification.

Technical documentation

You can find the product’s technical documentation: declaration of performance, test results, construction details, BIM Objects, etc…

Case studies

Discover some of our best projects. Our slate is part of remarkable buildings around the world.

If you have any questions, our experienced team on slate is at your disposal.