Non-carbonated slate formed by tectonic compression.
Black slate. Split to an average thickness of 3.75 mm, 5 mm, 7.5 mm and 9 mm.
Origin: Quarry Las Arcas Prada.
San Pedro de Trones (León) Spain
Operations start date: Operating since 1983
Dimensions
Sizes: Between 25x15cm and 50x38cm
Thickness: 3,75mm, 5mm, 7,5mm and 9mm
Formats: Multiple shapes are available.
International Certifications
CUPA 7 roofing slates meet the following international standards
International Certifications:
EN 12326
NF 228-02/01/01 - 5277
ATG/H876
BS EN 12326:2014
Technical specifications:
Water absorption: 0,28% Code : W1 (< 0,4%)
Contents of carbonate non carbonated:0,48% Fulfill (< 1,5%)
Mor characteristic: Longitudinal 61,2 MPA
SO2 exposure test: S1
Thermal cycle test: T1
Freeze thaw test: Fulfill < 0,6%
