Fire Curtains & Shutters Building Codes & Rules

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

• Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to NCC Specification 1, NCC Part G5, & AS 3959
• Protect Window & Door assembly^{AS 3959:2018, 3.7 (d)AS 3959:2018, 3.7 (e)}
• Non-removable & securely attached to the building^{AS 3959:2018, 3.7 (f)}
• Able to be closed manually in case of power failure^{AS 3959:2018, 3.7 (g)}
• Gaps & Perforations
• ≤ 2mm gap to Wall, Frame, or Sill^{AS 3959:2018, 3.7 (g)}
• ≤ 20% perforated area^{AS 3959:2018, 3.7}
• ≤ 2mm aperture size openings, evenly distributed^{AS 3959:2018, 3.7 (a)}
• Safe Exit / Egress^{AS 3959:2018, 3.7 (b)}
• ≥ 1 to be openable from inside to allow escape

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

• Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to NCC Specification 1, NCC Part G5, & AS 3959
• Corrosion-resistant Steel or Bronze Perforated Sheet or Mesh with
• ≤ 2mm aperture size or opening^{AS 3959:2018, 3.6}

• If all external doors are protected, one must be operable from the inside to allow for safe escape^{AS 3959:2018, 3.7}

Fusible Link^{AS 1905.2:2005, 5.6}

• ≤ 250mm distance from Barrel Assembly
• ≥ 4m wide openings, they shall have
• ≥ 2 Fusible link series at both opening ends
• Installed on the same side as the barrel
• Exposed to prevailing winds

Fire Shutter Metal Tag^{AS 1905.2:2005, 6}

• ≥ 50 x ≥ 25mm tag attached at the bottom rail
• Information requirements
• Installation date
• Identification number
• Fire Resistance Level
• Manufacturer or certifier’s name
• Supplier & Certifier's note complying with AS 1905.2

Possible Obstructions^{Manufacturer's Requirement}

• ≥ 100mm clearance from any obstructions

Vertical Guide Track

≤ 10^{AS 1905.2:2005, 5.3 (b)}

Window or Door Assembly^{AS 3959:2018, 3.7}

• Fully protected by Fire Shutter
• As per AS 3959

≥ 150^{AS 1905.2:2005, 5.5}

Access Panels^{Manufacturer's Requirement}

• Provide only when Fire Curtain Controller is installed within ceiling cavity

≤ 10^{AS 1905.2:2005, 5.3 (b)}

≥ 150^{AS 1905.2:2005, 5.5}

≤ 30^{AS 1905.2:2005, 5.3 (c)}

Opening or Door Assembly

• Fully protected by Fire Curtain^{Manufacturer's Requirement}

Vertical Guide Track

• Enables seamless motion of the Fire-resistant Curtain
• Shall be wall-mounted with the curtain overlapping evenly on both sides of the opening^{AS 1905.2:2005, 5.3}

Bottom Bar

Bottom Rail

Fire Curtain & Fire Shutter

• Must be installed as per Manufacturer and comply with NCC Specification 12^{NCC 2022 Vol 1, C4D5 (2)}
• Commission & Certification^{AS 1905.2:2005, 5.7AS 1905.2:2005, 7}
• Shall be tested, inspected & certified

Rigid Fire-resistant Curtain

Fire-resistant Curtain^{AS 1905.2:2005, 5.4}

• Bottom bar should reach threshold
• ≥ 50% of the Fire Curtain wrap should still be inside the barrel assembly when activated

• Exposed or unobtrusively recessed into the wall^{Tools™ Best Practice}
• On Designer's & Engineer's Specification
• Check project documentation

Fusible Link

Barrel Assembly

Barrel Assembly

Controller

Barrel Assembly^{AS 1905.2:2005, 5.2}

• Installed with the rolled-up curtain above the guide tracks and secured with brackets
• If non-combustible roller shutters are larger than the tested model for fire resistance
• Bracket fixing durability will increase accordingly to the added load