Types of Slate

We mainly buy our slate from Spain, England, Wales, Brazil, the USA, Canada and Germany and offer it in the colours blue grey, green, grey green, purple and mottled purple and green.

Spanish Roofing Slate

Argillite (Clay Slate), colour: blue grey, usual cleavage thickness: approx. 5-6 mm.
Characteristic: easy to cut.

English Roofing Slate

Quarzite rock from the Burlington quarry, colours: blue grey and green, usual cleavage thickness: approx. 8 – 10 mm.
Characteristic: very hard and durable, expressive contours through greater thickness and special surface of slate.

Welsh Roofing Slate

Argillite (Clay Slate), colours: blue grey and purple, usual cleavage thickness: approx. 4 – 6 mm.
Characteristic: harder than the Spanish slate and with a typical veining which is laid vertically.

Brazilian Roofing Slate

Argillite (Clay Slate), colours: blue grey, grey green, very seldom multi-coloured or purple, usual cleavage thickness: approx. 5-7 mm.
Characteristic: has a certain glass hardness.

American Roofing Slate

Argillite (Clay Slate), colours: green, purple, green brown to tan, mottled purple and green, usual cleavage thickness: approx. 6-7 mm.
Characteristic: great variety of colours up to greenish slates fading later to tan.

Canadian Roofing Slate

Argillite (Clay Slate), colour: purple, usual cleavage thickness approx. 4 – 6 mm, very similar to purple slate from Wales.

German Roofing Slate

Argillite (Clay Slate), colour blue grey, usual cleavage thickness approx. 5 – 7 mm depending on location of quarries and size of slate.
Characteristic: easy to cut, centuries of experience with the material.