Riverstone is the diamond of natural roofing slate. SSQ's signature slate is not actually slate, it is phyllite. Harder, denser and stronger than slate, phyllite is a perfect stone for any design challenge or artistic feature. With only a handful of sources known worldwide, commercially accessible phyllite stone is rare. Riverstone is one of very few top quality phyllite slates available. Its quality and exclusivity explains why it is used in the most prestigious projects, not just in the UK, but worldwide. If you are looking for the absolute best - that something special for your architectural, roofing or cladding project - then you have come to the right place.