Produced in Saint-Marc-du-Lac-Long in the province of Quebec, Canada, Glendyne slate is dark grey in colour with tones of blue. Manufactured to the highest standards, Glendyne slate comes in either Glendyne Fours which are 4 to 5mm thick and available in 508 x 254mm, 457 x 254mm, 457 x 220mm, 406 x 254mm, 406 x 220mm and 406 x 203mm or Glendyne Fives which are 5 to 6mm thick and available in 508 x 254mm.

Glendyne is a premium roofing slate used around the world on prestigious buildings and monuments. It is free from pyrite and oxidising metallic inclusions making it rustproof. Glendyne slates are guaranteed for 75 years.