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  • Calidad 85 Roofing Slate

    With fantastic looks and low water absorption qualities, the Calidad 85 slates are perfect for those looking for the best in performance and stability without neglecting the completed appearance. The Calidad 85 range of slates are sourced from Quiroga in Northern Spain, which is in one of the world’s leading slate producing regions. These slates are also easy to grade, giving an easy installation.



    Data Sheet

    Water absorption W1
    Non carbonate carbon content In accordance <1%
    Mechanical resistance characteristics (MoR) Transversal 48N/mm2
    Longitudinal 54N/mm2
    Calcium carbonate content Complies <1%
    Dimensional tolerances Complies
    Thermal cycle T1
    Exposure SO2 S1
    External fire performance Deemed to satisfy A1
    Reaction to fire Deemed to satisfy A1
    Release of dangerous substances None
    Use as roofing or external cladding Yes


    Calidad 85 Data Sheet

    Calidad 85 Spanish Roofing Slate

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