Principal Characteristics of all British Natural Roofing Slate

  1. Durability: Life should considerably exceed that of the building.
  2. Water Resistance: Impermeable to water penetration.
  3. Thermal Conductivity: 1.16 W/M°C: Average ‘K’ Value.
  4. Resistance to Light: No change.
  5. Effect of Extreme Temperature: No effect.
  6. Effects of Mildew, Fungus and Moss: No effect. Moss or lichen growth can be removed with a fungicide.
  7. Maintenance: None is needed once slates are laid correctly.