Del Carmen is proven to be of such consistently high quality that it is one of the few imported slates that has, in the past, been accepted for use as an alternative to indigenous material by English Heritage and Historic Scotland, the leading authorities charged with preserving Britain’s landmark structures, such as Buckingham Palace and the British Museum.
Often thought, globally, to be more desirable than Welsh slate because of its darker colour, Del Carmen is also certified for use in the Snowdonia National Park area of North Wales as well as by the French authorities (and the French know a thing or two about slate given that over 80% of global slate production goes there!).
Del Carmen slate recently won the National Federation of Roofing Contractors Award for the project at St Joseph College, Millhill London SW7. It was a 2,000 square meter job using Del Carmen Ultra 50×25