High quality grey-green slate, with a flat surface and pleasing grey shade variations. Can be relied upon to create an attractive and long lasting roof or floor. Has virtually no unstable minerals such as pyrites, graphite, carbon and un-oxidised irons and will withstand the most severe weather conditions. Unaffected by sunlight, ultraviolet light and even acid rain.
|Water Absorption||Complies W1 0.40%|
|Contents of Carbonate||Complies 0.1%|
|MOR Characteristics||Longitudinal 52 MPA|
|SO2 Exposure Test||S1|
|Thermal Cycle Test||T1|
|European Standard||EN 12326|