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Appendix B - New Dwelling Plans
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AS 3959-2018 CONSTRUCTION OF BUILDINGS IN BUSHFIRE PRONE AREAS
SECTION 5 CONSTRUCTION FOR BUSHFIRE ATTACK LEVEL 12.5 (BAL-12.5)
5.6 ROOFS (INCLUDES PENETRATIONS, EAVES, FASCIAS AND
GABLES, AND GUTTERS AND DOWNPIPES)
5.6.1 GENERAL 5.6.6 EAVES LININGS, FASCIAS AND GABLES 5.7.3.2 FRAMING
The following applies to all types of roofs and roofing systems: The following applies to eaves linings, fascias and gables: The Standard does not provide construction requirements for the framing of verandas,
(a) Roof tiles, roof sheets and roof-covering accessories shall be non-combustible. (a) Gables shall conform with Clause 5.4. decks, ramps or landings (i.e. bearers and joists).
(b) The roof/wall and roof/roof junction shall be sealed or otherwise protected in (b) Eaves penetrations shall be protected in the same way as roof penetrations, as
accordance with Clause 3.6. specified in Clause 5.6.5. 5.7.3.3 DECKING, STAIR TREADS AND THE TRAFFICABLE SURFACES
(c) Roof ventilation openings, such as gable and roof vents, shall be fitted with ember (c) Eaves ventilation openings shall be fitted with ember guards in accordance with OF RAMPS AND LANDINGS
guards made of non-combustible material or a mesh or perforated sheet conforming Clause 3.6 and made of corrosion-resistant steel, bronze or aluminium.
with Clause 3.6 and, made of corrosion-resistant steel, bronze or aluminium. Joints in eaves linings, fascias and gables may be sealed with plastic joining strips or The Standard does not provide construction requirements for decking, stair treads and
(d) Only evaporative coolers manufactured in accordance with AS/NZS 60335.2.98 timber storm moulds. the trafficable surfaces of ramps and landings that are more than 300 mm from a
shall be used. Evaporative coolers with an internal damper to prevent the entry of The Standard does not provide construction requirements for fascias, bargeboards glazed element.
embers into the roof space need not be screened externally. and eaves linings. Decking, stair treads and the trafficable surfaces of ramps and landings less than 300
mm (measured horizontally at deck level) from glazed elements that are less than 400
5.6.2 TILED ROOFS mm (measured vertically) from the surface of the deck (see Figure D2, Appendix D)
5.6.7 GUTTERS AND DOWNPIPES shall be made from—
Tiled roofs shall be fully sarked. The sarking shall- The Standard does not provide material requirements for— (a) non-combustible material; or
(a) be located on top of the roof framing, except that the roof battens may be fixed (a) gutters, with the exception of box gutters; and (b) bushfire-resisting timber (see Appendix F); or
above the sarking; (b) downpipes. (c) a timber species as specified in Paragraph E1, Appendix E; or
(b) cover the entire roof area including ridges and hips; and If installed, gutter and valley leaf guards shall be non-combustible. (d) a combination of any of Items (a), (b) or (c) above.
(c) extend into gutters and valleys. Box gutters shall be non-combustible and flashed at the junction with the roof with
non-combustible material. 5.7.4 BALUSTRADES, HANDRAILS OR OTHER BARRIERS
5.6.3 SHEET ROOFS
The Standard does not provide construction requirements for balustrades, handrails
Sheet roofs shall- and other barriers.
(a) be fully sarked in accordance with Clause 5.6.2, except that foil-backed insulation
blankets may be installed over the battens; or 5.7 VERANDAS, DECKS, STEPS AND LANDINGS 5.7.5 VERANDAH POSTS
(b) have any gaps sealed at the fascia or wall line, hips and ridges by— Veranda posts—
(i) a mesh or perforated sheet that conforms with Clause 3.6 and that is made of
corrosion-resistant steel, bronze or aluminium; or
5.7.1 GENERAL (a) shall be timber mounted on galvanized mounted shoes or stirrups with a clearance
of not less than 75 mm above the adjacent finished ground level; or
(ii) mineral wool; or Decking may be spaced. (b) less than 400 mm (measured vertically) from the surface of the deck or ground
(iii) other non-combustible material; or There is no requirement to enclose the subfloor spaces of verandas, decks, steps, (see Figure D2, Appendix D) shall be made from-
(iv) a combination of any of Items (i), (ii) or (iii). ramps or landings. (i) non-combustible material; or
C5.6.3 Sarking is used as a secondary form of ember protection for the roof space to C5.7.7 Spaced decking is nominally spaced at 3 mm (in accordance with standard (ii) bushfire-resisting timber (see Appendix F); or
account for minor gaps that may develop in sheet roofing. industry practice); however, due to the nature of timber decking with seasonal (iii) a timber species as specified in Paragraph E1, Appendix E; or
changes in moisture content, that spacing may range from 0 mm–5 mm during (iv) a combination of any of Items (a) or (b).
5.6.4 VERANDA, CARPORT AND AWNING ROOF service. It should be noted that recent research studies have shown that gaps at 5
The following applies to veranda, carport and awning roofs: mm spacing afford opportunity for embers to become lodged in between timbers,
(a) A veranda, carport or awning roof forming part of the main roof space which may contribute to a fire. Larger gap spacing of 10 mm may preclude this from 5.8 WATER AND GAS SUPPLY PIPES
[see Figure D1(a), Appendix D] shall meet all the requirements for the main roof, as happening but such a spacing regime may not be practical for a timber deck. Above-ground, exposed water supply pipes shall be metal.
specified in Clauses 5.6.1 to 5.6.6. External gas pipes and fittings above ground shall be of steel or copper construction
(b) A veranda, carport or awning roof separated from the main roof space by an 5.7.2 ENCLOSED SUBFLOOR SPACES OF VERANDAS, DECKS, STEPS, having a minimum wall thickness in accordance with gas regulations or 0.9 mm
external wall [see Figures D1(b) and D1(c), Appendix D] conforming with Clause 5.4 RAMPS AND LANDINGS whichever is the greater. The metal pipe shall extend a minimum of 400 mm within the
shall have a non-combustible roof covering, except where the roof covering is a building and 100 mm below ground.
translucent or transparent material. 5.7.2.1 MATERIALS TO ENCLOSE A SUBFLOOR SPACE NOTE: Refer to State and Territory gas regulations, AS/NZS 5601.1 and AS/NZS 4645.1.
NOTE: There is no requirement to line the underside of a veranda, carport or awning The Standard does not provide construction requirements for the materials used to C5.8 Concern is raised for the protection of bottled gas installations. Location,
roof that is separated from the main roof space. enclose a subfloor space except where those materials are less than 400 mm from the shielding and venting of the gas bottles needs to be considered.
ground.
5.6.5 ROOF PENETRATIONS Where the materials used to enclose a subfloor space are less than 400 mm from the
The following applies to roof penetrations: ground, they shall conform with Clause 5.4.
(a) Roof penetrations, including roof lights, roof ventilators, roof-mounted evaporative
cooling units, aerials, vent pipes and supports for solar collectors or the like, shall be 5.7.2.2 SUPPORTS
sealed. The material used to seal the penetration shall be non-combustible. The Standard does not provide construction requirements for support posts, columns,
(b) Openings in vented roof lights, roof ventilators or vent pipes shall conform with stumps, stringers, piers and poles.
Clause 3.6 and be made of corrosion-resistant steel, bronze or aluminium.
This requirement does not apply to a room sealed gas appliance. 5.7.2.3 FRAMING
NOTE: A gas appliance designed such that air for combustion does not enter from, or The Standard does not provide construction requirements for the framing of verandas,
combustion products enter into, the room in which the appliance is located. In the pergolas, decks, ramps or landings (i.e. bearers and joists).
case of gas appliance flues, ember guards shall not be fitted.
NOTE: AS/NZS 5601 contains requirements for gas appliance flue systems and cowls. 5.7.2.4 DECKING, STAIR TREADS AND THE TRAFFICABLE SURFACES
Advice can be obtained from manufacturers and State and Territory gas technical
regulators. OF RAMPS AND LANDINGS
(c) All overhead glazing shall be Grade A safety glass conforming with AS 1288. The Standard does not provide construction requirements for decking, stair treads and
(d) Glazed elements in roof lights and skylights may be of polymer provided a Grade the trafficable surfaces of ramps and landings that are more than 300 mm from a
A safety glass diffuser, conforming with AS 1288, is installed under the glazing. Where glazed element.
glazing is an insulating glazing unit (IGU), Grade A toughened safety glass of minimum Decking, stair treads and the trafficable surfaces of ramps and landings less than 300
4 mm in thickness shall be used in the outer pane of the IGU. mm (measured horizontally at deck level) from glazed elements that are less than 400
(e) Flashing elements of tubular skylights may be of a fire-retardant material, provided mm (measured vertically) from the surface of the deck (see Figure D2, Appendix D)
the roof integrity is maintained by an under-flashing of a material having a shall be made from-
flammability index not exceeding five. (a) non-combustible material; or
(f) Evaporative cooling units shall be fitted with non-combustible butterfly closers as (b) bushfire-resisting timber (see Appendix F); or
close as practicable to the roof level or the unit shall be fitted with non-combustible
covers with a mesh or perforated sheet with a maximum aperture of 2 mm, made of
(c) a timber species as specified in Paragraph E1, Appendix E; or
(d) uPVC; or
NOTES:
corrosion-resistant steel, bronze or aluminium. (e) a combination of any of Items (a), (b), (c) or (d). TO BE READ IN CONJUNCTION
(g) Vent pipes made from PVC are permitted.
(h) Eaves lighting shall be adequately sealed and not compromise the performance 5.7.3 UNENCLOSED SUBFLOOR SPACES OF VERANDAS, DECKS,
WITH AS 3959-2018
of the element.
STEPS AND LANDINGS
5.7.3.1 SUPPORTS SEE AS3959-2018 APPENDIX D FOR
The Standard does not provide construction requirements for support posts, columns, DIAGRAMATIC DETAILS IF
stumps, stringers, piers and poles.
REQUIRED
© COPYRIGHT. THIS DRAWING REMAINS THE PROPERTY OF G.J GARDNER HOMES & IS PROVIDED FOR THE USE AS DESCRIBED & MAY NOT BE USED OR REPRODUCED IN WHOLE OR IN PART WITHOUT WRITTEN PERMISSION. ANY LANDSCAPING (WHEN SHOWN) ARE FOR ILLUSTRATIVE PURPOSES ONLY AND DO NOT FORM PART OF ANY CONTRACT.
PAGE: SHEET SIZE: REV DRN CHK DETAILS DATE: I/WE HAVE CHECKED THE PLANS AND AGREE THAT
MONTVILLE 462 ASPECT HOUSE
CLIENT: PROJECT: PROPOSED RESIDENCE Supp-Z A3 * RW RW CONCEPT FLOOR PLAN 28/06/22 THEY ACCURATELY DEPICT THE HOUSE FOR
CONSTRUCTION.
SANDRA & RICHARD MATHISON JOB NUMBER: B RW RW AMENDED CONCEPTS 03/08/22
(MODIFIED) PLANS LOT 2 ON RP196994 GJGG430718 C RW RW AMENDMENTS - PRELIMS 29/09/22 JOB SPECIFICATION BY BUILDER TAKES
PRECEDENCE OVER THESE PLANS.
WOJTEK STAINWALD RESORT FACADE 1073 POMONA - KIN KIN ROAD SALESPERSON: D RW RW AMENDMENTS - PRELIMS 01/11/22
DRAWING TITLE:
QLD QLD KIN KIN, QLD CHRIS McNEIL E RW RW AMENDMENTS - PRELIMS 21/12/22 OWNER SIGNED: ............................... DATE: ..........
© COPYRIGHT EXCLUSIVE DATE: F RW RW CONSTRUCTION DRAWINGS 04/05/23 OWNER SIGNED: ............................... DATE: ..........
QBCC 1285235 TO G.J.GARDNER HOMES QBCC 1257937 BUSHFIRE NOTES 2 (BAL 12.5) 13/07/2023 G RW RW GARAGE BIGGER 13/07/23 BUILDER SIGNED: ............................. DATE: ..........
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