Over the last 20 years, SSQ have forged permanent, exclusive partnerships with some of the worlds finest quarries, ensuring that SSQ provide a reliable supply of the highest quality slate.

SSQ specialize in the supply of quality slate and as such classify our products according to the French Classification system, widely recognised as the most stringent in the world.

SSQ are the major shareholder of the San Luis Slate quarry in Argentina, which produces the distinctive grey/green Class A Riverstone slate.

SSQ’s exclusive Class A partners include the Del Carmen Quarry, which produces the distinctive blue/black Del Carmen and Del Carmen Begonia Grey slates and the Matacouta quarry which produces the Matacouta blue/grey slate, which is widely used in Scotland.

SSQ have been working with SIG Roofing Supplies over a number of years, this relationship has grown into a strategic alliance. SSQ supply SIG with exclusive quarries such as Regalado and Lancara alongside the other SSQ quality brands of Riverstone Grey/Green, Del Carmen Blue/Black, Del Carmen Begonia Grey, Matacouta, Quiroga, and Domiz, together with Canteverde and Amazonia from Brazil.

Quality control is an area which is of critical importance to SSQ. There are quality control teams at source to ensure our stringent quality control and selection procedures are followed.The labelling on every palette ensures that all SSQ’s slates can be traced back to the producing quarry - from initial shipping to final delivery on site.

SSQ have produced a range of literature which should answer any general or product specific queries you may have, please email danielwaters@sigroofing.co.uk for details.
Alternatively the following PDFs of all SSQs literature, testing information and sample guarantee certificates are available to view and print online below.