Slate is tough and durable natural roofing material unaffected by sunlight, UV light and resistant to acid rain providing a covering that will last a lifetime. Barcamp’s Brazilian natural slate originates from the quarries in the region of Papagaois, Brazil. It’s available in two colours – grey green and graphite both of which have shading variations which give an high quality, attractive looking roof. This Grey/Green slate has high deposits of chlorine that give it the unique green hue and a typical slate texture.