Opening Times Mon-Fri 6:30am to 4:30pm
Opening Times Mon-Fri 6:30am to 4:30pm
Glendyne Natural Slate is a premium-quality roofing material quarried in Saint‑Marc‑du‑Lac‑Long, Quebec, Canada, offering an elegant blue‑grey hue with subtle blue undertones and superb consistency in shade and texture, free from pyrite or metallic inclusions—ensuring no rust staining over its long lifespan . With rock composition roughly 98% the same as high-grade Welsh slate, Glendyne makes an excellent alternative for heritage and conservation projects, including those within Snowdonia National Park . Manufactured using a combination of modern extraction technology and traditional craftsmanship, it is precision-sorted for minimal grading and wastage, vastly simplifying installation and reducing overall labour time . Technically certified to top-tier standards including ASTM C406 (S1 grade), EN 12326‑1, ATG H768, and often classified W1‑S1‑T1 in performance, Glendyne slate is backed by a 75-year product guarantee, reflecting its exceptional strength and durability . It withstands UV, frost, acid rain, and freeze–thaw cycles reliably—even in exposed locations—and offers a service life exceeding 75 years when correctly installed . Available in multiple imperial sizes—such as 508 × 254 mm, 508 × 305 mm, and 610 × 305 mm—with typical thicknesses ranging between 4–5 mm and 5–6 mm, Glendyne slates provide flexibility for a wide range of roof pitches and layouts . With around 19–20 slates per m² (depending on headlap), and copper or aluminium nailing options (or slate hooks above certain pitches), precision installation yields clean, consistent roofing with minimal waste . In summary: Glendyne Natural Slate combines the beauty and longevity of the finest natural roof slates with environmentally responsible sourcing and modern quality control—making it a preferred roofing solution for both restoration and high-spec new-build projects.
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