CUPA 12 roof slates are made from non-carbonated slate formed by tectonic compression. 

  • Colour: grey

  • Surface: smooth matt

  • Sizes: between 20 x 15 and 60 x 45cm

  • Format: normally rectangular; other options available

  • Average thickness: 3.5, 5 and 6mm

  • Water absorption: 0.16% code: W1 (< 0.4%)

  • Carbonate non-carbonated: 0.23% fulfill (<1.5%)

  • Mor characteristic: longitudinal 55 MPA; transverse 56 MPA

  • SO2 exposure test: S1

  • Thermal cycle test: T1

  • Freeze thaw test: fulfill <0.6%

  • Origin: Quarry La Campa, Folgoso del Caurel (Lugo), Spain

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