Benefits
- The ISS-12 comes in a beautiful, traditional mid-grey with virtually no visible pyrites
- Clean, uniform surface with a slightly riven texture and neatly dressed edges
- The ISS-12 proudly conforms and surpasses all the top UK tests for water absorption, thermal cycle resistance and sulphur dioxide (acid rain) exposure with an excellent W1-S1-T1 rating
- Having been put through the most stringent selection process, the ISS-12 comes in 5mm thickness and is tested to the British UKCA requirements
- Full UK guarantee of up to 30 years for the ISS-12 slate. All our natural slate products come with a guarantee and declaration of performance.
