Stone chips
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Metal tile roofs – loss of stone chips
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Breakdown of the stone chip binding to the metal surface
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Careless walking on the roof
Metal tile roofs – corrosion
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Loss or breakdown of the stone chip coating or paint coating
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Air-borne salt accumulating under tiles, particularly where tiles are damaged
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Erosion of the galvanising, zinc/aluminium or aluminium/zinc alloy coating, exposing the base metal
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Roofing at the end of its serviceable life
