Construction Requirements BAL-29 Building Codes & Rules

- Ensure BAL compliance with our Bushfire Tools™. Learn key requirements for fire-resistant construction and why bushfire safety is a lifetime responsibility.

-/60/60 FRL

Garage door

Bushfire shutter (optional)

AS 3959:2018, 3.2.3 (a)

> 6m^{AS 3959:2018, 3.2.3 (a)}

NSW RFS 2019 PBP, 7.6

AS 3959:2018, 2.1

Fencing

< 6m from Building to be non-combustible^{NSW RFS 2019 PBP, 7.6AS 3959:2018, 2.1}

AS 3959:2018, 3.2.1

Wall & Openings Fire Separated from Garage^{AS 3959:2018, 3.2.1}

Only if the attached Garage is not constructed to BAL requirements

AS 3959:2018, 3.2.1 (a)

-/60/- FRL^{AS 3959:2018, 3.2.1 (a)}

Permanently Closed

Window

AS 3959:2018, 3.2.1 (a)

-/60/60 FRL^{AS 3959:2018, 3.2.1 (a)}

Wall

AS 3959:2018, 3.2.1 (a)

-/60/30 FRL^{AS 3959:2018, 3.2.1 (a)}

Self-closing

Fire Door

Wall Lining Installation (FRL)

Garage & Carport Under

All elements to BAL-29 Rules^[1], or
Fire separated

Carport or Garage Under or Partially Under a Building

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 3.2.2 (a)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.2.2

AS 3959:2018, 3.2.2 (b)

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to NCC^{AS 3959:2018, 3.2.2 (a)NCC 2022 Vol 1, G5D1}
Walls, Ceilings, Floors, Structure & Openings to BAL-29 requirements^{NCC 2022 Vol 2, H7D4}, or
Separated from the main building with^{AS 3959:2018, 3.2.2}
60/60/60 Structure tested from Outside
-/60/60 Walls & ceiling / floor above, or
≥ 90mm thk Masonry or Earth Walls^{AS 3959:2018, 3.2.2 (b)}
-/60/30 Self-closing fire door
-/60/- Permanently closed fire window

AS 3959:2018, 3.2.2

All elements to BAL-29 Rules^{AS 3959:2018, 3.2.2}, or
Fire separated

Fire Door

Guttering & Downpipes

Construction^[1]
Turn Sarking into Gutter
Box gutter non-combustible & fully flashed

Guttering RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.6.7

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Guttering^{AS 3959:2018, 7.6.7}
Install non-combustible valley leaf guards & Gutter
Use metal or uPVC Gutters
Except for Box Gutters
Box Gutters to be non-combustible & fully flashed

AS 3959:2018, 7.6.7

Construction^{AS 3959:2018, 7.6.7}
Turn Sarking into Gutter
Box gutter non-combustible & fully flashed

Skylights

Grade A safety glass^[1]
≤ 18° slope single panel glazing screened^[2]
Ventilation openings to be screened^[3]

Skylight RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.6.5 (c)

AS 3959:2018, 7.6.5 (d)

AS 3959:2018, 7.6.5 (e)

AS 3959:2018, 7.6.5 (g)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.5 (c)AS 3959:2018, 7.6.5 (d)}
Sealed & completely flashed with non-combustible material
Grade A Safety Glass to AS 1288^{AS 3959:2018, 7.6.5 (d)}
≤ 18° horizontally, Single pane Glass, Ember Guards required^{AS 3959:2018, 7.6.5 (e)}
≥ 2mm aperture & corrosion-resistant material of Ember Guards, if installed^{AS 3959:2018, 7.6.5 (g)}
Polymer Skylight allowed with^{AS 3959:2018, 7.6.5 (g)}
Grade A Safety Glass Diffuser below
IGUs^{NCC 2022 Vol 1, G5D1}
≥ 4mm thk Grade A Safety Glass Outer Panel
Tubular Skylights^{NCC 2022 Vol 2, H7D4}
Can be fire-retardant
Under-flashing
≤ 5 Flammability Index

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

AS 3959:2018, 7.6.5 (c)

AS 3959:2018, 7.5.3 (b) (v)

AS 3959:2018, 7.5.3 (b) (vi)

Grade A safety glass^{AS 3959:2018, 7.6.5 (c)}
≤ 18° slope single panel glazing screened^{AS 3959:2018, 7.5.3 (b) (v)}
Ventilation openings to be screened^{AS 3959:2018, 7.5.3 (b) (vi)}

Services

Metal plumbing externally^[1]
Electrical underground^[2][3]

Utility Service RULES

NCC 2022 V1

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.8

NSW RFS 2019 PBP, 5.3.3

NSW RFS 2019 PBP, 7.4

ISS 2016 C3, S1 (1.2)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.8AS 3959:2018, 7.8}
Water Supply^{NSW RFS 2019 PBP, 5.3.3}
Metal above-ground Water Pipes, Taps, Storage Tank
Fire Hydrants prohibited on road carriageway
Gas Services^{NSW RFS 2019 PBP, 5.3.3}
Steel or Copper above-ground Gas Pipes
≥ 900mm Wall thickness (follow local gas provider rules or whichever is greater)
≥ 400mm extension inside the building
≥ 100mm underground extension
Refer to local Gas regulations for additional information
Bottled Gas Installation^{NSW RFS 2019 PBP, 7.4NSW RFS 2019 PBP, 7.4}
Shield or locate away from building
Away from flammable materials
Connections are made of Metal
Polymer-sheated flexible gas supply lines are prohibited
Electricity Services^{ISS 2016 C3, S1 (1.2)NCC 2022 Vol 1, G5D1}
Power lines to be buried
Overhead lines
≥ 30m Pole spacing
Refer to ISSC3 for Managing Vegetation near Power lines^{NCC 2022 Vol 2, H7D4}

AS 3959:2018, 7.8

NSW RFS 2019 PBP, 5.3.3

AS/NZS 3000:2018, 3.11

Metal plumbing externally^{AS 3959:2018, 7.8}
Electrical underground^{NSW RFS 2019 PBP, 5.3.3AS/NZS 3000:2018, 3.11}

Floor & Balcony

Fully enclosing the sub-floor will provide protection^[1]
Non-combustible materials when unenclosed^[2][3]

Fully Enclosed Subfloor RULES

NCC 2022 V1

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.3.2.1

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Fully enclosing a sub-floor will provide protection
No requirements, if enclosed with^{AS 3959:2018, 7.3.2.1}
BAL-29 compliant wall, or
Protected by screens

Unenclosed Subfloor RULES

NCC 2022 V1

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.3.2.2

AS 3959:2018, 7.2

AS 3959:2018, 7.3.2.2

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bearers, Joists, & Flooring < 400mm from ground to be of^{AS 3959:2018, 7.3.2.2}
Non-combustible material, or
Bushfire-resisting timber
Flooring^{AS 3959:2018, 7.2}
Non-combustible, or
Bushfire-resisting timber, or
Timber, particleboard, or plywood, with underside covered by sarking or mineral wool, or
AS 1530.8.1 compliant system
Sub-floor space^{AS 3959:2018, 7.3.2.2}
Do not store any combustible material under a building
Keep free of leaf litter

Bushfire Resisting Timber BAL-29

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, F4

AS 3959:2018, E1

AS 3959:2018, 1.5.5

AS 3959:2018, 7.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bushfire-resisting Timber to AS 3959^{AS 3959:2018, F4}
Timber species as per AS 3959^{AS 3959:2018, E1}
Any solid, laminated, treated, or reconstituted Timber meeting BAL-29 compliance^{AS 3959:2018, 1.5.5AS 3959:2018, 7.1}

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

Wall Construction RULES

NCC 2022 V4

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.4.1

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
External Wall^{AS 3959:2018, 7.4.1}
Wall must be fully sarked
Composed of any of the following
Non-combustible masonry or masonry veneer wall
≥ 90mm thk timber logs with ≥ 680 kg/m³ density at 12% moisture content
Leaf of clay, blockwork, stone, concrete (incl aerated), or earth
≥ 6mm fibre-cement
Bushfire resisting timber
Steel sheet

Sub-Floor Support RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.2

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Exposed Sub-floor Supports^{AS 3959:2018, 7.2}
Non-combustible material, or
Bushfire-resisting timber, or
Allowed timber species
No requirements when Subfloor Space is enclosed with^{AS 3959:2018, 7.2}
BAL-29 compliant wall, or
Protected by screens

NSW RFS 2019 PBP, 7.4

AS 3959:2018, 7.2

AS 3959:2018, 7.3.2.2

Fully enclosing the sub-floor will provide protection^{NSW RFS 2019 PBP, 7.4}
Non-combustible materials when unenclosed^{AS 3959:2018, 7.2AS 3959:2018, 7.3.2.2}

Doors, Frames, Sidelights

Doors with Seals all round^[1]
Leaf non-combustible or ≥ 35mm solid core^[2]
Frames to be, metal, bushfire resisting timber, or metal reinforced uPVC^[3]
≥ 6mm Grade A Toughened Glazing^[4]

Bushfire Resisting Timber BAL-29

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, F4

AS 3959:2018, E1

AS 3959:2018, 1.5.5

AS 3959:2018, 7.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bushfire-resisting Timber to AS 3959^{AS 3959:2018, F4}
Timber species as per AS 3959^{AS 3959:2018, E1}
Any solid, laminated, treated, or reconstituted Timber meeting BAL-29 compliance^{AS 3959:2018, 1.5.5AS 3959:2018, 7.1}

Door RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.5.4 (a)

AS 3959:2018, 7.5.4 (b)

AS 3959:2018, 7.5.4 (c) (i) (A)

AS 3959:2018, 7.5.4 (c) (i) (B)

AS 3959:2018, 7.5.4 (c) (i) (C)

AS 3959:2018, 7.5.4 (c) (ii)

AS 3959:2018, 7.5.4 (c) (v)

AS 3959:2018, 7.5.4 (c) (iv)

AS 3959:2018, 7.5.4 (c) (vi)

AS 3959:2018, 7.5.4 (c) (vii)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.5.4 (a)AS 3959:2018, 7.5.4 (b)}
Door Leaf
Non-combustible^{AS 3959:2018, 7.5.4 (c) (i) (A)}
Solid, laminated or reconstituted Timber^{AS 3959:2018, 7.5.4 (c) (i) (B)}
≥ 35mm thk
400mm above threshold
Fully framed glazed panels with^{AS 3959:2018, 7.5.4 (c) (i) (C)}
Metal
Bushfire-resistanting Timber
Approved Timber species
uPVC framing
Frames^{AS 3959:2018, 7.5.4 (c) (ii)}
Metal, Bushfire-resisting Timber, Timber species, or Metal-reinforced uPVC
Aluminum, Stainless Steel, or corrosion-resistant Steel as reinforcement
Tight fitting to Door frame & abutting Door^{AS 3959:2018, 7.5.4 (c) (v)}
Seals & Weather Strips all round^{AS 3959:2018, 7.5.4 (c) (iv)}
Glazing^{AS 3959:2018, 7.5.4 (c) (vi)}
≥ 6mm Toughened Grade A Safety Glass
No requirements on door if
Protected by a Bushfire Shutter^{AS 3959:2018, 7.5.4 (c) (vii)NCC 2022 Vol 1, G5D1}
Protected by Screens^{NCC 2022 Vol 2, H7D4}

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

AS 3959:2018, 7.5.4 (c) (v)

AS 3959:2018, 7.5.4 (c) (i) (A)

AS 3959:2018, 7.5.4 (c) (ii)

AS 3959:2018, 7.5.4 (c) (i) (B)

Doors with Seals all round^{AS 3959:2018, 7.5.4 (c) (v)}
Leaf non-combustible or ≥ 35mm solid core^{AS 3959:2018, 7.5.4 (c) (i) (A)}
Frames to be, metal, bushfire resisting timber, or metal reinforced uPVC^{AS 3959:2018, 7.5.4 (c) (ii)}
≥ 6mm Grade A Toughened Glazing^{AS 3959:2018, 7.5.4 (c) (i) (B)}

Penetrations

Protection^[1]
Sealed with non-combustible materials
Screen all openings

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

Penetration RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

AS 3959:2018, 7.6.5 (a)

AS 3959:2018, 7.6.5 (b)

AS 3959:2018, 7.6.5 (f)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.5 (a)AS 3959:2018, 7.6.5 (b)}
Seal with non-combustible material^{AS 3959:2018, 7.6.5 (f)}
Screen openings^{NCC 2022 Vol 1, G5D1}
Evaporative Coolers^{NCC 2022 Vol 2, H7D4}
Non-combustible butterfly closers, or
Cover with mesh or perforated sheet
Corrosion-resistant steel, aluminium, or bronze
≤ 2mm aperture size

AS 3959:2018, 7.6.5

Protection^{AS 3959:2018, 7.6.5}
Sealed with non-combustible materials
Screen all openings

Roofing

Assembly^[1]
Non-combustible materials
Fully sarked, junctions sealed
Vents fitted with ember guards

Eave & Fascia RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NSW RFS 2019 PBP, 7.5.2

AS 3959:2018, 7.6.6 (a)

AS 3959:2018, 7.6.6 (b) (ii)

AS 3959:2018, 7.6.6 (d)

AS 3959:2018, 7.6.6 (e)

AS 3959:2018, 7.6.6 (c) (i)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NSW RFS 2019 PBP, 7.5.2AS 3959:2018, 7.6.6 (a)}
Eaves
≥ 4.5mm thk Eaves to be Fibre-cement or Bushfire-resisting Timber^{AS 3959:2018, 7.6.6 (b) (ii)}
Ventilation openings screened with corrosion-resistant Ember Guards^{AS 3959:2018, 7.6.6 (d)}
Penetrations sealed with a non-combustible material^{AS 3959:2018, 7.6.6 (e)}
≥ 450mm CTS Fascia of Bushfire-resisting Timber or Metal^{AS 3959:2018, 7.6.6 (c) (i)}
Gables to be constructed as per Walls^{NCC 2022 Vol 1, G5D1}
Joints to be sealed with non-combustible Plastic Joining Strips or Timber storm Moulds^{NCC 2022 Vol 2, H7D4}

Metal Sheet Roofing RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.6.3 (a)

AS 3959:2018, 7.6.3 (b)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.3 (a)AS 3959:2018, 7.6.3 (b)}
Roofs entirely sarked, except^{NCC 2022 Vol 1, G5D1}
If with Insulation with foil underneath blankets allowed over Battens
Gaps sealed at Edges, Hips, & Ridges with^{NCC 2022 Vol 2, H7D4}
Mesh or perforated sheet screened
Mineral Wool
Non-combustible materials

Guttering RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.6.7

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Guttering^{AS 3959:2018, 7.6.7}
Install non-combustible valley leaf guards & Gutter
Use metal or uPVC Gutters
Except for Box Gutters
Box Gutters to be non-combustible & fully flashed

Roofing RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

AS 3959:2018, 7.6.1 (a)

AS 3959:2018, 7.6.1 (b)

AS 3959:2018, 7.6.1 (e)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.6.1 (c)

AS 3959:2018, 7.6.1 (d)

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.1 (a)AS 3959:2018, 7.6.1 (b)}
Constructed with non-combustible materials^{AS 3959:2018, 7.6.1 (e)}
Roof/Roof & Roof/Wall junctions sealed, or^{NCC 2022 Vol 1, G5D1}
Reinforced with permeable sarking or mesh
Fit non-combustible ember guards or screens on Roof Ventilation Openings^{NCC 2022 Vol 2, H7D4}
Any pipe or conduit extending through the roof covering, to be non-combustible^{AS 3959:2018, 7.6.1 (c)}
Evaporative Coolers to be AS/NZS 60335.2.98 complaint^{AS 3959:2018, 7.6.1 (d)}
Coolers with internal ember dampers, do not require external screens

Skylight RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.6.5 (c)

AS 3959:2018, 7.6.5 (d)

AS 3959:2018, 7.6.5 (e)

AS 3959:2018, 7.6.5 (g)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.5 (c)AS 3959:2018, 7.6.5 (d)}
Sealed & completely flashed with non-combustible material
Grade A Safety Glass to AS 1288^{AS 3959:2018, 7.6.5 (d)}
≤ 18° horizontally, Single pane Glass, Ember Guards required^{AS 3959:2018, 7.6.5 (e)}
≥ 2mm aperture & corrosion-resistant material of Ember Guards, if installed^{AS 3959:2018, 7.6.5 (g)}
Polymer Skylight allowed with^{AS 3959:2018, 7.6.5 (g)}
Grade A Safety Glass Diffuser below
IGUs^{NCC 2022 Vol 1, G5D1}
≥ 4mm thk Grade A Safety Glass Outer Panel
Tubular Skylights^{NCC 2022 Vol 2, H7D4}
Can be fire-retardant
Under-flashing
≤ 5 Flammability Index

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

Tiled Roof RULES

NCC 2022 V1

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.6.2 (a)

AS 3959:2018, 7.6.2

AS 3959:2018, 7.6.2 (b)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.2 (a)AS 3959:2018, 7.6.2}
Roof to be entirely sarked, installed over Roof Frame, including^{AS 3959:2018, 7.6.2 (b)}
Ridges^{AS 3959:2018, 7.6.2 (b)}
Hips^{NCC 2022 Vol 1, G5D1}
Turned up into Gutters, & Valleys
Battens can be installed on top of the Sarking^{NCC 2022 Vol 2, H7D4}

Penetration RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

AS 3959:2018, 7.6.5 (a)

AS 3959:2018, 7.6.5 (b)

AS 3959:2018, 7.6.5 (f)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.5 (a)AS 3959:2018, 7.6.5 (b)}
Seal with non-combustible material^{AS 3959:2018, 7.6.5 (f)}
Screen openings^{NCC 2022 Vol 1, G5D1}
Evaporative Coolers^{NCC 2022 Vol 2, H7D4}
Non-combustible butterfly closers, or
Cover with mesh or perforated sheet
Corrosion-resistant steel, aluminium, or bronze
≤ 2mm aperture size

AS 3959:2018, 7.6.1

Assembly^{AS 3959:2018, 7.6.1}
Non-combustible materials
Fully sarked, junctions sealed
Vents fitted with ember guards

Vent & Weepholes

Vents screened^[1]
Non-combustible access door^[2]

Door RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.5.4 (a)

AS 3959:2018, 7.5.4 (b)

AS 3959:2018, 7.5.4 (c) (i) (A)

AS 3959:2018, 7.5.4 (c) (i) (B)

AS 3959:2018, 7.5.4 (c) (i) (C)

AS 3959:2018, 7.5.4 (c) (ii)

AS 3959:2018, 7.5.4 (c) (v)

AS 3959:2018, 7.5.4 (c) (iv)

AS 3959:2018, 7.5.4 (c) (vi)

AS 3959:2018, 7.5.4 (c) (vii)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.5.4 (a)AS 3959:2018, 7.5.4 (b)}
Door Leaf
Non-combustible^{AS 3959:2018, 7.5.4 (c) (i) (A)}
Solid, laminated or reconstituted Timber^{AS 3959:2018, 7.5.4 (c) (i) (B)}
≥ 35mm thk
400mm above threshold
Fully framed glazed panels with^{AS 3959:2018, 7.5.4 (c) (i) (C)}
Metal
Bushfire-resistanting Timber
Approved Timber species
uPVC framing
Frames^{AS 3959:2018, 7.5.4 (c) (ii)}
Metal, Bushfire-resisting Timber, Timber species, or Metal-reinforced uPVC
Aluminum, Stainless Steel, or corrosion-resistant Steel as reinforcement
Tight fitting to Door frame & abutting Door^{AS 3959:2018, 7.5.4 (c) (v)}
Seals & Weather Strips all round^{AS 3959:2018, 7.5.4 (c) (iv)}
Glazing^{AS 3959:2018, 7.5.4 (c) (vi)}
≥ 6mm Toughened Grade A Safety Glass
No requirements on door if
Protected by a Bushfire Shutter^{AS 3959:2018, 7.5.4 (c) (vii)NCC 2022 Vol 1, G5D1}
Protected by Screens^{NCC 2022 Vol 2, H7D4}

Screen RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

AS 3959:2018, 6.4.3

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture size or opening^{AS 3959:2018, 3.6.1}
Aluminium, bronze, or corrosion-resistant steel^{AS 3959:2018, 6.4.3}

AS 3959:2018, 7.4.3

AS 3959:2018, 7.5.4 (c) (i) (A)

Vents screened^{AS 3959:2018, 7.4.3}
Non-combustible access door^{AS 3959:2018, 7.5.4 (c) (i) (A)}

Sarking

Where required^[1]
≤ 5 flammability index
Walls & roof to be fully-sarked

Sarking RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NSW RFS 2019 PBP, 7.5.2

AS 3959:2018, 3.10

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.10

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NSW RFS 2019 PBP, 7.5.2NSW RFS 2019 PBP, 7.5.2}
≤ 5 Flammability Index^{AS 3959:2018, 3.10}
Non-combustible material^{NCC 2022 Vol 1, G5D1}
Continuous to the outside of Walls & Roof^{NCC 2022 Vol 2, H7D4}
Type of Sarking varies based on location, consulting a professional is recommended^{AS 3959:2018, 3.10}

AS 3959:2018, 3.6.1

Where required^{AS 3959:2018, 3.6.1}
≤ 5 flammability index
Walls & roof to be fully-sarked

Eaves & Fascias

Roof Components^[1]
Gables shall follow same rules as per Fire Wall
Eaves penetrations screened
Joints sealed

Eave & Fascia RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NSW RFS 2019 PBP, 7.5.2

AS 3959:2018, 7.6.6 (a)

AS 3959:2018, 7.6.6 (b) (ii)

AS 3959:2018, 7.6.6 (d)

AS 3959:2018, 7.6.6 (e)

AS 3959:2018, 7.6.6 (c) (i)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NSW RFS 2019 PBP, 7.5.2AS 3959:2018, 7.6.6 (a)}
Eaves
≥ 4.5mm thk Eaves to be Fibre-cement or Bushfire-resisting Timber^{AS 3959:2018, 7.6.6 (b) (ii)}
Ventilation openings screened with corrosion-resistant Ember Guards^{AS 3959:2018, 7.6.6 (d)}
Penetrations sealed with a non-combustible material^{AS 3959:2018, 7.6.6 (e)}
≥ 450mm CTS Fascia of Bushfire-resisting Timber or Metal^{AS 3959:2018, 7.6.6 (c) (i)}
Gables to be constructed as per Walls^{NCC 2022 Vol 1, G5D1}
Joints to be sealed with non-combustible Plastic Joining Strips or Timber storm Moulds^{NCC 2022 Vol 2, H7D4}

Bushfire Resisting Timber BAL-29

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, F4

AS 3959:2018, E1

AS 3959:2018, 1.5.5

AS 3959:2018, 7.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bushfire-resisting Timber to AS 3959^{AS 3959:2018, F4}
Timber species as per AS 3959^{AS 3959:2018, E1}
Any solid, laminated, treated, or reconstituted Timber meeting BAL-29 compliance^{AS 3959:2018, 1.5.5AS 3959:2018, 7.1}

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

AS 3959:2018, 7.6.6

Roof Components^{AS 3959:2018, 7.6.6}
Gables shall follow same rules as per Fire Wall
Eaves penetrations screened
Joints sealed

Windows & Glazed Doors

Frame to be, metal, bushfire resisting timber, or metal reinforced uPVC^[1]
≥ 5mm Grade A Toughened Glazing^[2]
Openable Screens^[3]

Bushfire Resisting Timber BAL-29

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, F4

AS 3959:2018, E1

AS 3959:2018, 1.5.5

AS 3959:2018, 7.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bushfire-resisting Timber to AS 3959^{AS 3959:2018, F4}
Timber species as per AS 3959^{AS 3959:2018, E1}
Any solid, laminated, treated, or reconstituted Timber meeting BAL-29 compliance^{AS 3959:2018, 1.5.5AS 3959:2018, 7.1}

Window RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.5.3 (a)

AS 3959:2018, 7.5.3 (b) (i)

AS 3959:2018, 7.5.3 (b) (v)

AS 3959:2018, 7.5.3 (b) (ii)

AS 3959:2018, 7.5.3 (b) (iii)

AS 3959:2018, 7.5.3 (b) (v)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.5.3 (a)AS 3959:2018, 7.5.3 (b) (i)}
Glazing
≥ 5mm thk Toughened Glass (outer pane only if double glazed)^{AS 3959:2018, 7.5.3 (b) (v)}
if ≤ 400mm from ground, above Deck, or Ember Holding Surface must be screened^{AS 3959:2018, 7.5.3 (b) (ii)}
Frames^{AS 3959:2018, 7.5.3 (b) (iii)}
Metal, Bushfire-resisting Timber, or
uPVC reinforced with Aluminum, Stainless Steel or corrosion-resistant Steel
Screens^{AS 3959:2018, 7.5.3 (b) (v)}
≤ 2mm aperture or opening
Internal or external open sections of Windows
Fixed & opening sections for Windows
External hardware to be Metal^{NCC 2022 Vol 1, G5D1}
No requirements if protected by a BAL-29 Bushfire Shutter^{NCC 2022 Vol 2, H7D4}

Ember holding surface

NCC 2022 V2

Embers can blow & accumulate against a vertical building element causing it to ignite
Any surface including Ground, Deck or Roof can hold embers if
< 18° slope
> 110mm width

AS 3959:2018, 7.5.3 (b) (iii)

AS 3959:2018, 7.5.4 (c) (ii)

AS 3959:2018, 7.5.3 (b) (v)

Frame to be, metal, bushfire resisting timber, or metal reinforced uPVC^{AS 3959:2018, 7.5.3 (b) (iii)}
≥ 5mm Grade A Toughened Glazing^{AS 3959:2018, 7.5.4 (c) (ii)}
Openable Screens^{AS 3959:2018, 7.5.3 (b) (v)}

Verandah or Awning Roof

Relation to main roof^[1]
If part of main roof space, requirements as per main roof
If separated, non-combustible cover
≥ 6mm fibre-cement lining for combustible elements

Metal Sheet Roofing RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.6.3 (a)

AS 3959:2018, 7.6.3 (b)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.3 (a)AS 3959:2018, 7.6.3 (b)}
Roofs entirely sarked, except^{NCC 2022 Vol 1, G5D1}
If with Insulation with foil underneath blankets allowed over Battens
Gaps sealed at Edges, Hips, & Ridges with^{NCC 2022 Vol 2, H7D4}
Mesh or perforated sheet screened
Mineral Wool
Non-combustible materials

Tiled Roof RULES

NCC 2022 V1

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.6.2 (a)

AS 3959:2018, 7.6.2

AS 3959:2018, 7.6.2 (b)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.2 (a)AS 3959:2018, 7.6.2}
Roof to be entirely sarked, installed over Roof Frame, including^{AS 3959:2018, 7.6.2 (b)}
Ridges^{AS 3959:2018, 7.6.2 (b)}
Hips^{NCC 2022 Vol 1, G5D1}
Turned up into Gutters, & Valleys
Battens can be installed on top of the Sarking^{NCC 2022 Vol 2, H7D4}

External Roofing RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.6.4 (a)

AS 3959:2018, 7.6.4

AS 3959:2018, 7.6.4 (b) (i)

AS 3959:2018, 7.6.4 (b) (ii)

AS 3959:2018, 7.6.4 (b) (iii)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.6.4 (a)AS 3959:2018, 7.6.4}
Part of Main Roof space component^{AS 3959:2018, 7.6.4 (b) (i)}
To follow Main Roof requirements
As a separate feature & partitioned by BAL-29 compliant Wall^{AS 3959:2018, 7.6.4 (b) (ii)}
Covering materials to be non-combustible^{AS 3959:2018, 7.6.4 (b) (iii)}
Bushfire-resisting Timber^{NCC 2022 Vol 1, G5D1}
Timber Rafter with^{NCC 2022 Vol 2, H7D4}
≥ 6mm thk Fibre-cement underside sheeting

AS 3959:2018, 7.6.4

Relation to main roof^{AS 3959:2018, 7.6.4}
If part of main roof space, requirements as per main roof
If separated, non-combustible cover
≥ 6mm fibre-cement lining for combustible elements

Decks & Landing

Fully enclosing a subfloor will provide protection^[1][2]
Non-combustible material^[3]

Bushfire Resisting Timber BAL-29

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, F4

AS 3959:2018, E1

AS 3959:2018, 1.5.5

AS 3959:2018, 7.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bushfire-resisting Timber to AS 3959^{AS 3959:2018, F4}
Timber species as per AS 3959^{AS 3959:2018, E1}
Any solid, laminated, treated, or reconstituted Timber meeting BAL-29 compliance^{AS 3959:2018, 1.5.5AS 3959:2018, 7.1}

Decks and Landing RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.7.2

NSW RFS 2019 PBP, 7.5.2

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.7.1

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.7.2NSW RFS 2019 PBP, 7.5.2}
Decking may be spaced^{NCC 2022 Vol 1, G5D1}
Non-combustible material
Bushfire-resisting Timber
Enclosed with BAL-29 compliant Wall, optional Sarking^{NCC 2022 Vol 2, H7D4}

NSW Enhanced RULES^{AS 3959:2018, 7.7.1}

Decks, Landings & Stairs must be constructed to BAL-29 requirements
All elements must be
Non-combustible material, or
Bushfire-resisting Timber

NSW RFS 2019 PBP, 7.4

AS 3959:2018, 7.7.2.4 (a)

AS 3959:2018, 7.7.2

Fully enclosing a subfloor will provide protection^{NSW RFS 2019 PBP, 7.4AS 3959:2018, 7.7.2.4 (a)}
Non-combustible material^{AS 3959:2018, 7.7.2}

Attached Structure

Same fire resisting construction, or^[1]
Main building protected by^[2]
-/60/60 FRL wall
-/60/30 FRL self-closing fire door
-/60/- FRL permanently closed window

Attached Structure RULES

NCC 2022 V1

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.2.1 (a)

AS 3959:2018, 3.2.1

AS 3959:2018, 3.2.2

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
The main building can be protected by having the attached structure with equivalent fire resisting construction as the main building, or^{AS 3959:2018, 3.2.1 (a)}
Fire Wall required if structure is a garage^{AS 3959:2018, 3.2.1}
Fire Wall protecting main building^{AS 3959:2018, 3.2.2}
-/60/60 Fire Wall
-/60/30 self-closing Fire Door
-/60/- permanently closed window

AS 3959:2018, 3.2.1

AS 3959:2018, 3.2.1 (a)

Same fire resisting construction, or^{AS 3959:2018, 3.2.1}
Main building protected by^{AS 3959:2018, 3.2.1 (a)}
-/60/60 FRL wall
-/60/30 FRL self-closing fire door
-/60/- FRL permanently closed window

Detached Structure

> 6m separation, or^[1]
Same fire resisting construction, or^[2]
Main building protected by^[3]
-/60/60 FRL Fire Wall
-/60/30 FRL self-closing fire door
-/60/60 FRL permanently closed window

Detached Structure RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.2.3 (b)

AS 3959:2018, 3.2.3

AS 3959:2018, 3.2.3 (a)

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
The main building can be protected by having the detached structure with equivalent fire-resisting construction as the main building, or^{AS 3959:2018, 3.2.3 (b)}
Separation from Main Building^{AS 3959:2018, 3.2.3}
≥ 6m horizontal distance, or
Fire Wall protecting main building^{AS 3959:2018, 3.2.3 (a)}
-/60/60 Fire Wall
-/60/30 self-closing Fire Door
-/60/- permanently closed window

AS 3959:2018, 3.2.3 (a)

AS 3959:2018, 3.2.3

AS 3959:2018, 3.2.3 (b)

> 6m separation, or^{AS 3959:2018, 3.2.3 (a)}
Same fire resisting construction, or^{AS 3959:2018, 3.2.3}
Main building protected by^{AS 3959:2018, 3.2.3 (b)}
-/60/60 FRL Fire Wall
-/60/30 FRL self-closing fire door
-/60/60 FRL permanently closed window

Garage Doors

Non-combustible materials^[1]
≤ 5 Flammability Index to seals^[2]
Ventilation slots if any, screened^[3]

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

Garage Door RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.5.6 (a) (i)

AS 3959:2018, 7.5.6 (a) (ii)

AS 3959:2018, 7.5.6 (a) (iii)

AS 3959:2018, 7.5.6 (b)

AS 3959:2018, 7.5.6 (c)

AS 3959:2018, 7.5.6 (e)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.5.6 (a) (i)AS 3959:2018, 7.5.6 (a) (ii)}
Materials to be
Non-combustible^{AS 3959:2018, 7.5.6 (a) (iii)}, or
Bushfire-resting Timber^{AS 3959:2018, 7.5.6 (b)}, or
≥ 6mm Fibre-cement Sheet^{AS 3959:2018, 7.5.6 (c)}
Fitted with Guide Tracks, Weather Strips, Seals & Brushes^{AS 3959:2018, 7.5.6 (e)}
≤ 5 Flammability Index^{NCC 2022 Vol 1, G5D1}
Ventilation protected by screens^{NCC 2022 Vol 2, H7D4}

AS 3959:2018, 7.5.6 (a) (i)

AS 3959:2018, 7.5.6 (c)

AS 3959:2018, 7.5.6 (e)

Non-combustible materials^{AS 3959:2018, 7.5.6 (a) (i)}
≤ 5 Flammability Index to seals^{AS 3959:2018, 7.5.6 (c)}
Ventilation slots if any, screened^{AS 3959:2018, 7.5.6 (e)}

Bushfire Shutter

Non-combustible materials^[1]
Optional & removes window & door requirements^[2]
≤ 2mm aperture gaps, slots, or screen^[3]

Bushfire Resisting Timber BAL-29

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, F4

AS 3959:2018, E1

AS 3959:2018, 1.5.5

AS 3959:2018, 7.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bushfire-resisting Timber to AS 3959^{AS 3959:2018, F4}
Timber species as per AS 3959^{AS 3959:2018, E1}
Any solid, laminated, treated, or reconstituted Timber meeting BAL-29 compliance^{AS 3959:2018, 1.5.5AS 3959:2018, 7.1}

Screen RULES

NCC 2022 V2

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 3.6.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen of corrosion-resistant steel, bronze, or aluminium^{AS 3959:2018, 3.6.1}

Bushfire Shutter MATERIALS

NCC 2022 V2

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 7.5.1 (a)

AS 3959:2018, 7.5.1 (b)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 7.5.1 (a)AS 3959:2018, 7.5.1 (b)}
Materials that are fireproof or non-combustible^{NCC 2022 Vol 1, G5D1}
Bushfire-resisting Timber^{NCC 2022 Vol 2, H7D4}

Bushfire Shutter RULES

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

AS 3959:2018, 3.7 (d)

AS 3959:2018, 3.7 (e)

AS 3959:2018, 3.7 (f)

AS 3959:2018, 3.7 (g)

AS 3959:2018, 3.7

AS 3959:2018, 3.7 (a)

AS 3959:2018, 3.7 (b)

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{AS 3959:2018, 3.7 (d)AS 3959:2018, 3.7 (e)}
Protect Window & Door assembly^{AS 3959:2018, 3.7 (f)AS 3959:2018, 3.7 (g)}
Non-removable & securely attached to the building^{AS 3959:2018, 3.7 (g)}
Able to be closed manually in case of power failure^{AS 3959:2018, 3.7}
Gaps & Perforations
≤ 2mm gap to Wall, Frame, or Sill^{AS 3959:2018, 3.7 (a)}
≤ 20% perforated area^{AS 3959:2018, 3.7 (b)}
≤ 2mm aperture size openings, evenly distributed^{NCC 2022 Vol 1, G5D1}
Safe Exit / Egress^{NCC 2022 Vol 2, H7D4}
≥ 1 to be openable from inside to allow escape

AS 3959:2018, 7.5.1 (a)

AS 3959:2018, 3.6

AS 3959:2018, 7.5.3

Non-combustible materials^{AS 3959:2018, 7.5.1 (a)}
Optional & removes window & door requirements^{AS 3959:2018, 3.6}
≤ 2mm aperture gaps, slots, or screen^{AS 3959:2018, 7.5.3}

Walls

Non-combustible material, or^[1]
Bushfire-resistant timber^[2]
Fully-sarked^[3]
Joints sealed or covered^[4]

Bushfire Resisting Timber BAL-29

NCC 2022 V3

All Building Classes

NCC 2022 G5D1 & H7D4 [2019 G5.0, 3.10.5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, F4

AS 3959:2018, E1

AS 3959:2018, 1.5.5

AS 3959:2018, 7.1

Building elements within Bushfire-prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
Bushfire-resisting Timber to AS 3959^{AS 3959:2018, F4}
Timber species as per AS 3959^{AS 3959:2018, E1}
Any solid, laminated, treated, or reconstituted Timber meeting BAL-29 compliance^{AS 3959:2018, 1.5.5AS 3959:2018, 7.1}

Wall Construction RULES

NCC 2022 V4

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.4.1

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
External Wall^{AS 3959:2018, 7.4.1}
Wall must be fully sarked
Composed of any of the following
Non-combustible masonry or masonry veneer wall
≥ 90mm thk timber logs with ≥ 680 kg/m³ density at 12% moisture content
Leaf of clay, blockwork, stone, concrete (incl aerated), or earth
≥ 6mm fibre-cement
Bushfire resisting timber
Steel sheet

Vents & Weepholes

NCC 2022 V3

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.4.3

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
≤ 2mm aperture screen^{AS 3959:2018, 7.4.3}

Of aluminium, bronze, or corrosion-resistant steel

Jointing RULES

NCC 2022 V1

All Building Classes

NCC 2022 G5, H7D4, & S1

[2019 G5, 3.10.5, Sch 5]

May 2023

NCC 2022 Vol 1, G5D1

NCC 2022 Vol 2, H7D4

AS 3959:2018, 7.4.2

Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCC^{NCC 2022 Vol 1, G5D1NCC 2022 Vol 2, H7D4}
External joints are closed off, shielded, layered, reinforced with backing, or edge-joined^{AS 3959:2018, 7.4.2}