Slate

Slate

A fine-grained stone that splits naturally into thin layers. Its character is the cleft surface, dark matte color, chipped plate edges, and subtle sheet-like direction.

Common names

  • split slate
  • roofing slate
  • natural slate

Search phrases

  • thin layered black stone
  • dark split stone
  • charcoal stone tile
  • roofing slate

Common uses

  • Roof shingles
  • Entry floors
  • Feature walls
  • Fireplace hearths

Choosing points

  • Best for floors, roofs, walls, and exterior details where thin layered dark stone is useful.
  • Cleft slate has beautiful texture but catches dust in ridges.
  • Dark slate can show white mineral bloom or cleaning residue.
  • It is visually calm, making it useful beside wood, plaster, and blackened metal.

How it ages

  • Good slate lasts decades, but poor slate can delaminate in freeze-thaw or wet exterior conditions.

What to avoid

  • Do not use soft or delaminating slate in showers, exterior freeze-thaw areas, or thin unsupported edges without checking the grade.