CUPA 7 - Natural Slate
This black, non-carbonated slated is formed by tectonic compression.
CUPA PIZARRAS has been producing the most complete range of natural slate for roofing and facade since 1892.
Non-carbonated slate formed by tectonic compression. Black slate.
Split to an average thickness of 3.75 mm, 5 mm, 7 mm and 9 mm.
Quarry Las Arcas Prada.
San Pedro de Trones (León) Spain
Operations start date
Operating since 1983
Sizes: Between 16”x8 and 16”x10”
Thickness: 3/16” to 3/8”
Excellence, Ardoisier, Heavy
Rectangular is the most common model in the US.
0,28% Code: W1 (< 0,4%)
Contents of carbonate non carbonated
0,48% Fulfill (< 1,5%)
Longitudinal 61,2 MPA
SO2 exposure test
Thermal cycle test
Freeze thaw test
Fulfill < 0,6%