CUPA 14 natural slate is made from non-carbonated, dark grey stone with a riven surface, split to thicknesses between 5 and 9mm. Suitable for roofing and facade applications, it is available in a range of rectangular and shaped formats and meets key international standards for durability and performance.

  • Natural slate for roofing and facades, available in multiple sizes and thicknesses

  • Distinctive dark grey colour with thin laminations and riven texture

  • Formed by tectonic compression for structural integrity

  • Low water absorption rate of 0.24%

  • Non-carbonated composition for enhanced durability

  • Complies with EN 12326, BS EN 12326:2014, and ASTM S1 standards

  • Range of shapes including rectangular, bullnose, rhomboid, and more

Applications

  • Roofing for residential and commercial buildings

  • Facade cladding

  • Historic building restoration

  • Public and institutional projects

  • Private homes

Dimensions

Sizes from 20 x 15 to 60 x 45cm

Thicknesses: 5, 6.5, 7.5, 9mm

Performance

Water absorption: 0.24% (W1, less than 0.4%)

Longitudinal MOR: 38 MPa

SO2 exposure: S1

Thermal cycle: T1

Freeze-thaw test: less than 0.6%

Carbonate content: 0.30% (less than 1.5%)

Materials

Natural slate, non-carbonated

Colours

Dark grey

Finish

Riven surface

Options and variations

Rectangular, bullnose, rhomboid, half moon, schuppen, spitzort, fischschuppen, 90º sawn

Selections: R, H, NATURAL

Origin

Las Fuentes Quarry, Benuza (León), Spain

Accreditations

EN 12326

BS EN 12326:2014

ASTM C-121 (S1)

ASTM C-217 (S1)

ASTM C-120 (S1)