Homeowner Professional

Discover the latest news about natural slate: new projects, top news, installation guides, tips about how to place slate tiles, roofing sector innovations…

23/09/2021
When choosing natural slate you are opting for the best roofing material: long service life, quality, ecology and beauty. But are all the slates the same? Where can you find the best ones? What is Spanish slate? Spanish slate is a foliated, metamorphic rock created from fine-grained sediments over the course of millions of years. […]
Dr. Víctor Cárdenes Van den Eynde Geologist and roofing slate independent consultant
16/09/2021
For a while now that I hear more and more people asking about the asbestos content of roofing slate. There are two ways to give an answer to this concern, the short one and the long one. First, the short one: Roofing slates do not have asbestos, it is mineralogically, chemically and geologically impossible. In […]
03/09/2021
The latest addition to our wide range of natural slates is now on the market for you to buy. UK customers can now purchase the new CUPA 50, a deep grey slate coming from Northern Spain with all the benefits that buying the world leader in slate offers. The  launch is part of a broader […]
Dr. Víctor Cárdenes Van den Eynde Geologist and roofing slate independent consultant
08/06/2021
Bending Strength, also known as Flexural Strength, Breaking Load or Modulus of Rupture, is one of the main properties of roofing slates. This test is found in the four roofing slate standards: European EN 12326, USA ASTM C406, Chinese GB/T 18600 and Indian IS 6250. Together with the water absorption test and sulphur atmosphere exposure, […]

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Dr. Víctor Cárdenes Van den Eynde Geologist and roofing slate independent consultant
05/05/2021
As some of you may know, I have been teaching courses about roofing slate for the last few years. People that are new to roofing slate usually think that slate is a rather dull material, as to them, all roofing slates look the same. Well, we know that this is not true. Roofing slates have […]
Dr. Víctor Cárdenes Van den Eynde Geologist and roofing slate independent consultant
29/03/2021
Why do we use slate to cover roofs? There are many good answers to these questions: slate is waterproof, can be split into thin, regular and flat shingles. Slate is durable and has been used for centuries in many exceptional buildings, and (my favourite) slate is a beautiful natural rock with outstanding aesthetics. However, have […]
16/03/2021
At CUPA PIZARRAS we’re hitting the road to explore different countries and show you natural slate through the eyes of the roofers. How can you join us? Quite easy: from 22nd March check out our Instagram stories. Throughout that week we will stop at different locations in France, Belgium and the United Kingdom, where local […]
Dr. Víctor Cárdenes Van den Eynde Geologist and roofing slate independent consultant
08/03/2021
Today I will discuss something that can either be very funny or very sad, depends on the eye of the beholder. Let me explain some of the facts about fake roofing slates. Nowadays it is possible to find artificial or synthetic “slate” shingles, usually made of asphalt, rubber, plastic…anything but stone. Of course, companies that […]
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