Non-carbonated slate formed by tectonic compression. Blue Black slate with thin laminations and a smooth surface.
Split to an average thickness of 3.75 mm, 5 mm, 7 mm and 9 mm.
Note: As this is a natural product it is possible that there will be a shade variation.
Quarry Las Arcas Prada.
San Pedro de Trones (León) Spain.
Operations start date
Operating since 1983
Sizes: Between 25x15cm and 50x38cm
Thickness: 3,75 mm, 5 mm, 7 mm y 9 mm
R EXCELLENCE, H, NATURAL
Rectangular is the most common model in the International Market.
If you are interested in other formats or sizes, please contact us.
CUPA 25 roofing slates meet the following international standards
Technical documentation (declaration of performance, certifications, …) available in the resource center.
0,35% Code : W1 (< 0,4%)
Contents of carbonate non carbonated
0,50% Fulfill (< 2%)
Longitudinal 55 MPA
SO2 exposure test
Thermal cycle test
Freeze thaw test
Fulfill < 0,4%
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