Benefits

  • This charming slate is recognised for its beautiful array of blue / grey colours
  • The Ffestiniog is a thin, uniform, fine slate boasting a smooth riven texture and beautifully dressed edges
  • Ffestiniog slate 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, Ffestiniog slate comes selected into thicknesses of 5.5mm, 7mm and 9mm and is tested to the British UKCA requirements
  • Full UK guarantee of up to 75 years for the Ffestiniog slate.  All our natural slate products come with a guarantee and declaration of performance.

Sizes Available (mm):

300mm x 200mm

400mm x 250mm

500mm x 300mm

UKCE Mark
Quality mark silver 50yr
Quality mark gold 75yr

Technical Advice

This slate is available in 3 different grades Capital (thickness 5.5mm), County (thickness 7mm) and Celtic (thickness 9mm).  Your ISS representative will advise slate sizes and thickness best suited to your project.

A Declaration of Performance (DOP) and full testing results can be provided upon request.