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    NVS horizontal fire curtains installed in Lend Lease building to meet BCA’s atrium provisions

    Greene Fire

    NVS horizontal fire curtains from Greene Fire were installed in an ACT building to meet the fire separation provisions of the BCA in an atrium application.

    The building located at 4 National Circuit in Barton ACT was designed by architect Fender Katsalidis for the developer Lend Lease with ARUP contributing to the project as the Fire Engineer.

    The building was designed to include a void similar to an atrium, which interconnected six levels. The design not only introduces more natural light into the building but also increases the opportunity for people to interact and share ideas. These features of the building add favourably to the 5 Star Green Office Design v3 target achievement for the project.

    Since the void interconnected six levels, the large floor area and volume created meant that the building was required to meet the atrium provisions specified in Part G of the BCA – this would not only have increased costs but also have been very restrictive in design.

    By incorporating Coopers FireMaster NVS horizontal fire curtain barriers from Greene Fire on levels 2 and 4, the voids could be closed in fire mode. This reduced the compartment size to within the BCA requirements for a Type A construction of not more than two interconnected floors, a floor area of less than 8,000m² and office volume less than 48,000m³.

    Greene Fire’s solution to the technical challenge also meant the building did not have an atrium in fire mode.

    Two NVS horizontal fire curtains, each measuring 9 metres wide by 17 metres draw were installed in the West building. These are the largest horizontal fire curtains installed in the world with No Visible Supports and an FRL of -/120/-.

    Key benefits of the NVS model horizontal fire curtains include No Visible Supports within the atrium void; cost savings on atrium construction requirements; cheaper solution than vertical fire curtains on multiple floors; reduced maintenance costs with less curtains and no supports in the void; points for Green Star ratings; and lightweight construction with no requirement for structural steel to support it.

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