Alpina is a Brazilian natural slate of the highest quality, selected from the finest deposits and produced at some of the best facilities in Papagaios, Brazil. It is available in two colours: grey green and graphite, and commonly used metric sizes 60x30cm, 50x25cm and 40x20cm. Alpina slate has virtually no unstable minerals such as pyrites, graphite, carbon and un-oxidised irons and will withstand the most severe weather conditions: it is unaffected by sunlight, ultraviolet light and even acid rain. Cembrit recommend hook fixing to get the best out of the slate, in terms of ease of installation, breakage and the roof’s working life.
Fire protection class
1.24 - 4.2