Gwendreath Natural Slate™

The slate is tested to BS EN 12326, and Gwendreath Natural Slate™ carries CE and UKCA marking.

It is a smooth-faced slate in a mid-grey with subtle blue tones. Gwendreath Natural Slate™ is strong in both directions of bending and is flat and true, so it lays quickly and neatly. Its colour sits comfortably alongside traditional slate roofs, and the tighter selection suits projects where a uniform, closely matched appearance matters most.

Even with a Prime selection, slates should still be sorted by thickness before fixing, as the standards require. Prefer to grade on site? Kennack Natural Slate™ is our Standard selection.

PERFORMANCE

The slate is tested to EN 12326-1:2015 and EN 12326-2.

Water absorption: W1

Thermal cycle: T1

Sulphur dioxide exposure: S1

Characteristic MoR: 46 MPa longitudinal / 44 MPa transverse

Carbonate content: 0.1% · Non-carbonate carbon: 0.3%

Reaction to fire: considered to comply with Class A1

External fire performance: BROOF

For samples, stock and technical information, contact sales@westcountryslate.co.uk

Gwendreath Natural Slate™

• 500 x 250 – 5mm nominal thickness
• 500 x 375 – 5mm nominal thickness