What are the specific fire safety compliance requirements for attached townhouses under the current National Construction Code in Australia?

Under the National Construction Code (NCC), attached townhouses, typically classified as Class 1a buildings, necessitate rigorous fire safety measures. Key requirements include fire-resisting construction for walls separating adjoining dwellings, typically achieving a Fire Resistance Level (FRL) of 60/60/60. This involves using materials like masonry or specific plasterboard systems to prevent fire spread. Additionally, smoke alarms must be installed in all bedrooms and circulation spaces servicing bedrooms, interconnected where multiple alarms are present. Emergency egress paths must be clear and unobstructed, with appropriate door hardware. Specific requirements also apply to penetrations in fire-rated elements and the protection of openings. Compliance ensures occupant safety and minimises property damage in the event of a fire.