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THERMOSLATE®, the only solar system in the market made with natural slate that generates energy for heating sanitary hot water and swimming pool.

THERMOSLATE® enables you to take advantage of the efficiency of renewable energies without forgoing the elegant, sophisticated design of a natural slate roof.

The thermal panel system is one of a kind in the market which uses natural slate to transform solar light into energy. This is later used for heating, hot water or to heat swimming pools.

A wide range of products are offered for construction project; the solar collectors are completely invisible once installed.

Because of its modular design, THERMOSLATE® is integrated in a quick and easy way to create a natural slate roof.

  • INVISIBLE: Full integration into any roof or cladding
  • SOLAR: Natural energy for domestic hot water and pool heating
  • COMPATIBLE: With any storage and distribution system
  • EFFICIENT: Up to 2/3 of annual needs for hot water

Different systems for a seamless integration:


For pitched roofs, with an invisible fixing system in stainless steel


For pitched roofs, with a visible fixing system in stainless steel


For flat roofs, flooring or facades

Certified Quality

The organisations Centre Scientifique et Technique du Batiment (CSTBat), Solar Keymark, Instituto Giordano and ICIM certify that THERMOSLATE® meets the necessary requirements for marketing internationally.

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.