Every year, the risk of bushfires in Australia is particularly high on days when the weather is hot and dry and there is a northerly wind. Since 1851, bushfires have wreaked damage costing an estimated 1.6 billion dollars, and according to a national research institute, our continent faces “dangerous decades” ahead. The bushfire season will begin earlier and end later, scientists predict. By the year 2020, the number of calendar days with an “extreme” fire danger rating is expected to have risen by up to 65 %. For this reason, all materials for buildings in bushfire-prone Bushfire Attack Level (BAL) rated areas must be certified in accordance with the relevant BAL standards. heroal bushfire systems meet all BAL-Flame Zone (FZ) requirements.