Adjacent Building (Fire Separation) Building Codes & Rules

60/60/60 FRL^{NCC 2022 HP, 9.2.3 (2) (a)}

-/60/-

FRL^{NCC 2022 HP, 9.2.3 (3) (a)}

Protection of External Walls^{NCC 2022 HP, 9.2.6}

• ≥ 1.8m maintained distance to
• Setback, or
• Separation, or
• 60/60/60 FRL Construction to
• [A] Setback, or
• [B] Class 10a Wall, or
• [C] Class 1 Wall

Fire Resisting Wall Construction < 1.8m

• From Footings or Ground Slab to underside of Roof^{NCC 2022 HP, 9.2.3 (1) (a)}
• 60/60/60 FRL Wall, or^{NCC 2022 HP, 9.2.3 (2)}
• ≥ 90mm Masonry Construction
• ≥ 35mm Self-closing Solid Core Door^{NCC 2022 HP, 9.2.3 (3) (b)}
• -/60/- FRL Non-opening Fire Window^{NCC 2022 HP, 9.2.3 (3) (a)}

Combustible Roof Lights^{NCC 2022 HP, 9.2.10}

• ≥ 1.8m from neighbouring roof lights
• ≤ 20% of entire roof area

Fire Resisting Roof Construction <1.8m^{NCC 2022 HP, 9.2.9 (3)}

• Non-combustible Eaves lining & Roof cover

Allowable Encroachments

• < 1.8m^{NCC 2022 HP, 9.2.9 (3)}
• Utility meters, Light fittings, Antennas
• Sun blinds, Water tanks, Pergolas
• ≤1m (H) Landings, Open platforms, Access ways
• ≥ 900mm^{NCC 2022 HP, 9.2.9 (4)}
• Residential fuel tanks, Flues, Pipes
• Heating or cooling devices

Setback^{NCC 2022 HP, 9.2.6}

Adjacent Building on Same Allotment

Encroachments^{NCC 2022 HP, 9.2.9 (4)}

• Combustible
• Fascia
• Non-combustible
• Gutter, Downpipe

Class

A

Class

Separation^{NCC 2022 HP, 9.2.6}

Window FRL exemption ≥ 1.2m from Boundary^{NCC 2022 HP, 9.2.3 (4)}

• ≤ 1.2m² Bathroom, Laundry or WC
• ≤ 0.54m² Non-openable rooms
• Steel framed, Wired Glass, or
• Hollow Glass Blocks

Adjacent Building on Same Allotment

C

1

10a

B

≥ 90°^{NCC 2022 HP, 9.2.2}

≥ 1.8m^{NCC 2022 HP, 9.2.1 (b)}

≥ 900^{NCC 2022 HP, 9.2.9 (4)}

Fire Separation Carports

• ≥ 2 Open Sides^[1]
• ≥ 2/3 Open Perimeter

Fire Separation Carport RULES

NCC 2022 V1

NCC 2022 HP, 9.2.8

NCC 2022 HP, 9.2.8 (b)

NCC 2022 HP, 9.2.8 (f)

NCC 2022 HP, 9.2.8 (f) (i)

NCC 2022 HP, 9.2.8 (f) (ii)

NCC 2022 HP, 9.2.8 (c)

NCC 2022 HP, 9.2.8 (c)

NCC 2022 HP, 9.2.8 (a)