CUPA PIZARRAS has been producing the most complete range of natural slate for roofing and facade since 1892.
CUPA 7

Color

Surface
Non-carbonated slate formed by tectonic compression. Black slate.
Split to an average thickness of 3/16” to 3/8”.

Origin
Quarry Las Arcas Prada.
San Pedro de Trones (León) Spain

Operations start date
Operating since 1983

Dimensions
Sizes: Between 16”x 8 and 16”x 10”
Thickness: 3/16” to 3/8”

Selections
Excellence, Ardoisier, Heavy
Formats
Rectangular is the most common model in the US.
If you are interested in other formats or sizes please contact us.




International Certifications
CUPA 7 roofing slates meet the following international standards




Technical specifications
Technical documentation (declaration of performance, certifications, …) available in the resource center.
Water absorption
0,17% Code: W1 (< 0,4%)
Contents of carbonate non carbonated
0,50% Fulfill (< 1,5%)
Mor characteristic
Longitudinal 55,8 MPA
SO2 exposure test
S1
Thermal cycle test
T1
Freeze thaw test
Fulfill < 0,6%

Would you like to see a sample? Please complete the form to receive your slate sample.
Projects
Here you can see some examples of projects that uses our CUPA 7 slate. Go to our projects section to see more works.