
Product code: CEM0019
Estimated delivery: 3 - 5 Days
Cembrit 500mm x 250mm Standard Quality Spanish Natural Roofing Slate (Q9) ~ Blue / Black
Duquesa slate is a tough natural material and samples are regularly tested to the following national standards:
British Standard
BS EN 12326-1:2004 Product specification for roofing slate
• Exhibited the top Class A1 for water absorbtion
• Exhibited the top Class T1 for thermal cycle resistance
• Exhibited the top Class S1 for sulphur dioxide exposure resistance
• Good flexural strength both transversely and longitudinally
• Acceptable non-carbonate content
Slate Grain and Surface Characteristics


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