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Walsc Panel Systems are comprised of reinforced Autoclaved Aerated Concrete (AAC). The National Construction Code (NCC) requires fire-stopping systems to be fire-tested and/or assessed to determine the FRL of the specific penetration in different walls. The Trafalgar Fire products in this technical manual have been tested and approved to AS1530.4-2014 specifically for use in AAC panel wall systems, providing compliance under the National Construction Code (NCC).