AF FIREGUARD 3 are pre-fabricated rock wool blankets, 30 mm thick, reinforced by a metal mesh which is covered with an anodized aluminium sheet on the outside and fibreglass fabric, specially treated with ablative material, on the inside.
The blankets are designed and developed to ensure fire protection (external fire) for ventilation ducts with a single layer of AF FIREGUARD 3.
The AF FIREGUARD 3 blankets are classified for both circular and rectangular ducts, according to the European standard EN 1366-1, and offer a fire resistance of up to 180 min.