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When it comes to quality, sustainability and beauty, prefabricated roofing materials do not quite measure up to the high standards of purely sourced slate.  The natural beauty can be found in various shades of black and grey and can be crafted into multiple shapes and sizes. CUPA PIZARRAS, family-owned producers and world leader of natural slate, has a vast slate product range, which includes its most popular product in England and Wales – CUPA 12.


CUPA 12 is a dark grey slate with thin laminations and a smooth matt surface. Available in six sizes, it has exceptional consistency of thickness and surface appearance; it is split to an average thickness of 5mm and 6mm.  In addition, the slates conform to the requirements of BS EN 12326-1 and are certified for resistance to freeze/ thaw.


Slate’s lack of standardisation is precisely what defines its uniqueness and makes it so versatile – it can be adapted to any type of project whether it’s contemporary or period architecture.

Being a mineral product, slate is totally inert and ecological and is subject to a simple and efficient production process.  In fact CUPA PIZARRAS’ slate is sourced from a number of quarries throughout Northwest Spain by means of extraction and working processes alone, and does not need any additional treatment.  Artificial additives and chemicals are not required resulting in an unadulterated finished article, and this makes it a sustainable alternative for any architectural project. In fact, independent studies, such as one carried out by the Inventory of Carbon and Energy (ICE, University of Bath), highlight natural slate as the material with least negative effects on the environment.

Used since roman times, slate is a substance that has stood the test of time.  It is remarkably durable being fire resistant and naturally waterproof due to its low water absorption rate providing buildings with protection from all the elements, particularly rain and frost.  Unlike prefabricated materials, natural slate will not change in appearance or performance whatever weather it may be subjected to.  Furthermore, once slate is installed it is likely to outlive the rest of the building – man made materials tend to break down over time resulting in replacement of parts or entire reroofing which is not cost-effective.

Natural slate can give any roof or façade a timeless appearance that contributes to the elegance of an entire structure.  With a lifespan of up to 150 years, this unique material continues to adorn many prestigious buildings.

For more information on Cupa Pizarras and its products, visit the website:

CUPA PIZARRAS leads the world in slate production. Their 16 quarries and 22 processing plants combine the latest technology with their traditional know-how and craftsmanship.

One out of three slates for roofing and covering facades in the world have CUPA PIZARRAS’ name written on them. Thousands of architects, professional roofers and private home owners rely on CUPA PIZARRAS natural slate to make all of their projects a reality.

More than 98% of CUPA PIZARRAS production is exported to more than 60 countries throughout five continents. They also have branch offices in France, the United Kingdom, the three Benelux countries, Denmark and the United States of America.

Natural Slate

CUPA PIZARRAS have been producing and commercializing slate since 1892. With over 120 years of experience in this area and a team of over 1,500 associates made up of experts who are passionate about natural slate.


Each slate is unique. Its texture tells us the story. Created by all the natural forces and made up of many different minerals. No other artificial alternatives could compare with a product which has been molded by nature for over 500 million years.


With a durability of over 100 years, natural slate is the most resistant material used for roofing. Unlike the artificial products, the color and the properties of slate stay, unalterable, through time with no need of maintenance.


By being 100% natural, slate is the roofing material with less environmental impact. Each slate is handcrafted by CUPA PIZARRAS skilled splitting craftsmen with no chemical products or additional treatments added.


Slate is capable of enduring extreme temperatures, difficult snow formation, fire-resistance as well as being fully waterproof. Only natural slate guarantees a perfect performance in any weather condition.


Slate has endured the test of time. Its unparalleled character and durability makes this material ideal to preserve the aesthetics appearance and personality of any architectural project.

Proud to exhibit at the Homebuilding & Renovating show.