CUPA 18 natural slate is made from non-carbonated, dark grey stone with a smooth surface, designed for roofing and facade applications. Produced in Spain since 1972, this slate is available in a range of sizes and shapes, with consistent quality and low water absorption.

  • Natural slate for roofing and facades with a smooth, dark grey finish

  • Formed by tectonic compression for durability

  • Low water absorption at 0.11%

  • Available in multiple sizes from 20 x 20 to 60 x 45cm

  • Range of shapes including rectangular, square and decorative cuts

  • Meets EN 12326 and BS EN 12326:2014 standards

  • Non-carbonated composition reduces risk of weathering

Applications

  • Residential roofing

  • Commercial roofing

  • Facade cladding

  • Heritage and restoration projects

  • Luxury homes

  • Care facilities

  • Architectural projects requiring natural stone finishes

Dimensions

Sizes between 20 x 20 and 60 x 45cm

Thickness: 3.5, 5, 6mm

Performance

Water absorption: 0.11% (W1, <0.4%)

Longitudinal MOR: 52 MPa

SO2 exposure: S1

Thermal cycle: T1

Freeze-thaw test: <0.6%

Carbonate content: 0.20% (<1.5%)

Materials

Natural slate, non-carbonated

Colours

Dark grey (shade variation possible)

Finish

Smooth surface with thin laminations

Options and variations

Rectangular, square, half moon, schuppen, spitzort, fischschuppen, 90º sawn

Origin

La Campa Quarry, Folgoso del Caurel, Lugo, Spain

Accreditations

EN 12326

BS EN 12326:2014

ATG/H962