At CUPA PIZARRAS we extract natural slate from 16 quarries and we transform them in our 22 industrial units, where the most advanced technology combines with our craftsmen’s traditional know-how.

Slate selections for roofing

Once the process of cutting and craftsmanship is finished, our slate is selected piece by piece by our quality control team based on different technical and aesthetic guidelines. These guidelines, where flatness and width are highlighted, allow us to classify the pieces of slate in four different selections.

R Excellence selection

Nominal thickness: 3.5 – 5mm

Our R EXCELLENCE selection of natural slate roofing is the result of an extraordinarily rigorous classification process that is only passed by slates of great flatness and very regular thickness.

Our CUPA R EXCELLENCE slates are considered to be the best natural slates produced in the world by thousands of architects, installers and individuals and are used in projects where a homogeneous result is sought for a perfect roof.

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H Selection

Nominal thickness: 3.5 – 5mm

The H natural slate roofing selection features high quality, permitting slight variations in slate thickness and flatness.

The technical characteristics of the slates – their strength and durability – are the same as in the R selection, as they are produced from the same natural slate blocks. These slates are chosen by experienced installers who are able to adapt the product to the roof and guarantee a homogeneous result.

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Natural Selection

Nominal thickness: 3.5 – 5mm

The NATURAL slate roofing selection is made up of slates that allow greater variations in thickness and flatness. The technical characteristics of the slates are the same as in the superior selections, as they are produced from the same natural slate blocks.

The NATURAL selection competes on cost with artificial products, but keeps the long life expectancy and low environmental impact that characterises natural slate.

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HEAVY Selection

Nominal thickness: 7 – 9mm

Our HEAVY natural slate roofing selection is made up exclusively of thick slates, of over 7 millimetres, characterised by their exceptional durability in any circumstance or climatic conditions.

While they come from the same blocks, unlike the other selections, the HEAVY selection is produced looking for greater thickness and more texture in the natural slate. The result is a slate with a crafted appearance and unmatchable strength that gives a roof a unique personality.

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