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  • Venta 25 Roofing Slate


    The Venta 25 slate is produced in the Castañeiro region of Northern Spain. The 25 is available in the following sizes: 50×37, 50×25, 45×33, 45×22, 40×37 and 40×25.

    This slate is available in Premium and Standard thin grades, with the 50×25 premium pallets containing around 910 individual slates.

     

    Specification

    Data Sheet

    Water absorption W1
    Non carbonate carbon content In accordance <1%
    Mechanical resistance characteristics (MoR) Transversal 43 (Mpa)
    Longitudinal 54 (Mpa)
    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

     

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