CUPA 98 roof slates are made from non-carbonated slate formed by tectonic compression.

  • Colour: dark grey with thin laminations
  • Surface: riven
  • Sizes: between 25x25 and 70x50cm
  • Format: normally rectangular; other options available
  • Average thickness: 5, 6, 7.5 and 9mm
  • Water absorption: 0.12% code: W1 (< 0.4%)
  • Carbonate non-carbonated: 0.24% fulfill (<1.5%)
  • Mor characteristic: longitudinal 58 MPA; transverse 39 MPA
  • SO2 exposure test: S1
  • Thermal cycle test: T1
  • Freeze thaw test: fulfill <0.4%
  • Origin: Quarry Rande, Ortigueira (A Coruña), Spain

As this is a natural product it is possible that there will be a shade variation.