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9.2

Part 9.2 Fire separation of external walls

Part 9.2 Fire separation of external walls

SA 9.2.1 External walls of Class 1 buildings2019: SA 3.7.2.2(b) and (c)

Delete clause 9.2.1 and insert SA 9.2.1 as follows:

An external wall of a Class 1 building, and any openings in that wall, must comply with 9.2.3 if the wall is less than—

  1. 900 mm from an allotment boundary other than the boundary adjoining a road alignment or other public space; or
  2. 1.8 m from another building on the same allotment other than an appurtenant Class 10 building associated with the Class 1 building or a detached part of the same Class 1 building; or
  3. 3 m from a brush fence.

SA 9.2.2 Measurement of distances2019: 3.7.2.3

Insert SA subclause 9.2.2(4) in clause 9.2.2 as follows:

(4) The distance from any point on an external wall of a building to a brush fence is measured in any direction from the external wall.

SA 9.2.4 Class 10a buildings2019: 3.7.2.5

Insert SA subclause 9.2.4(3) in clause 9.2.4 as follows:

(3) A carport or verandah may have timber posts and timber roof support beams regardless of their distance from the boundary.

SA 9.2.4 Class 10a buildings2019: 3.7.2.5

Insert SA subclause 9.2.4(4) in clause 9.2.4 as follows:

(4) A Class 10b brush fence must not be constructed within 3 m of a Class 1 building unless any part of the building within 3 m of the brush fence complies with the fire-resisting requirements of 9.2.1, 9.2.2, 9.2.3 and 9.2.9.

SA 9.2.8 Open carports2019: SA 3.7.2.6(a)

Delete clause 9.2.8 and insert SA 9.2.8 as follows:

A Class 10a carport is exempt from complying with 9.2.4(1) if—

  1. it has—
    1. two or more sides open and not less than one third of its perimeter open and, for the purpose of this clause, a side is considered to be open if the roof covering adjacent to that side is not less than 500 mm from another building or allotment boundary; or
    2. any part of the external wall of the Class 1 building located less than 2 m from the allotment boundary or less than 4 m from another Class 1 building on the same allotment is fire-resisting to the underside of a non-combustible roof covering or to the underside of a non-combustible ceiling lining (see SA Figure 9.2.8a, SA Figure 9.2.8b and SA Figure 9.2.8c); and
  2. it has polycarbonate or non-combustible roof covering and any ceiling lining and wall cladding, including gables, is also non-combustible (see Figure 9.2.8a); and
  3. it does not provide direct vertical support to any part of the Class 1 building; and
  4. in the case where it has a common roof structure with the Class 1 building and the carport or verandah does not have a ceiling (see Figure 9.2.8b), the opening between the top of the wall of the Class 1 building and the underside of the roof covering is infilled with—
    1. non-combustible material; or
    2. construction with non-combustible material on the carport or verandah side; and
  5. in the case where two carports or verandahs have a common roof structure with two different Class 1 buildings and the carports or verandahs have a ceiling, the roof space or ceiling space between the top of the ceiling and the underside of the roof covering is infilled as follows—
    1. vertically between the two Class 1 buildings and between the two appurtenant carports of verandahs in accordance with (d) (see SA Figure 9.2.8d); or
    2. vertically between the two Class 1 buildings and between the two appurtenant carports or verandahs in accordance with (d), except that the construction must be clad with non-combustible materials on both sides and must not be crossed by timber or other combustible building elements except for roof battens with dimensions of 75 × 50 mm or less, roof sarking-type material or a timber gutter board not less than 20 mm thick.
Insert SA figure (9.2.8a) 9.2.8 as follows:
SA Figure 9.2.8a: Fire-resisting requirements for carports or verandahs without a ceiling
image-9-2-8a-fire-resisting-requirements-for-carports-or-verandahs-without-a-ceiling-SA.svg
Insert SA figure (9.2.8b) 9.2.8 as follows:
SA Figure 9.2.8b: Fire-resisting requirements for carports or verandahs with a non-combustible ceiling
image-9-2-8b-fire-resisting-requirements-carports-verandahs-non-combustible-ceiling-SA.svg
Insert SA figure (9.2.8c) 9.2.8 as follows:
SA Figure 9.2.8c: Fire-resisting requirements for external walls in carports and verandahs that share a common roof space
image-9-2-8c-fire-resisting-requirements-external-walls-carports-verandahs-common-roof-space-SA.svg
Insert SA figure (9.2.8d) 9.2.8 as follows:
SA Figure 9.2.8d: Fire-resisting requirements for roof space openings in carports and verandahs with a ceiling that share a common roof space
image-9-2-8d-fire-resisting-requirements-for-roof-space-openings-in-carports-SA.svg

SA 9.2.9 Allowable encroachments2019: SA 3.7.2.7

Delete clause 9.2.9 and insert SA 9.2.9 as follows:

(1) An encroachment is any construction between—

  1. the external wall of the building and the allotment boundary other than a boundary adjoining a road or other public space; or
  2. the external walls of two buildings on the same allotment; or
  3. the external wall of the building and a brush fence.

(2) For the purposes of (1), an encroachment related to any external wall of—

  1. a Class 10a building required to comply with 9.2.4; or
  2. a Class 1 building.

(3) The encroachments allowed within 900 mm of an allotment boundary or within 1.8 m of another building on the same allotment or within 3 m of a brush fence are—

  1. non-combustible fascias, gutters and downpipes; and
  2. light fittings, electricity or gas meters, aerials or antennas; and
  3. pergolas, sun blinds or water tanks; and
  4. unroofed terraces, landings, steps and ramps, not more than 1 m in height.

(4) Except as permitted by (5) or not permitted by (6), encroachments allowed up to but not closer than 450 mm from an allotment boundary or up to but not closer than 900 mm from another building on the same allotment or associated encroachments of another building on the same allotment are—

  1. combustible fascias, gutters and downpipes (see Figures 9.2.9a, 9.2.9b and 9.2.9c); and
  2. eaves with non-combustible roof cladding and non-combustible lining; and
  3. flues, chimneys, pipes, domestic fuel tanks, cooling or heating appliances or other services.

(5) Eaves with non-combustible roof cladding and non-combustible soffit or lining may encroach within 450 mm of the allotment boundary where the external walls of a building are located not less than 900 mm from the allotment boundary and the walls are positioned at an angle of not less than 20 degrees and not more than 70 degrees to the allotment boundary or other building and the eaves only encroach at the corner of the roof (see SA Figure 9.2.9).

(6) Fascias listed in (4)(a) must not be built within 3 m of a brush fence.

Insert SA figure (9.2.9) 9.2.9 as follows:
SA Figure 9.2.9: Concession for encroachment of eaves
image-9-2-9-concession-for-encroachment-of-eaves-SA.SVG