Part I3 Farm buildings and farm sheds
Introduction to this Part
This Part provides additional Deemed-to-Satisfy Provisions for Class 7 and Class 8 buildings which are farm buildings or farm sheds.
Application of Part
Part I3 contains Deemed-to-Satisfy Provisions additional to those contained in Sections C, D, E and F for farm buildings and farm sheds.
Fire resistance and separation
Provision for escape
Construction of exits
Fixed platforms, walkways, stairways and ladders
The threshold of a doorway that serves an area not required to be accessible by D4D2 in a farm building need not comply with D3D16 where the door sill is not more than 700 mm above the finished surface of the ground, floor or the like, to which the doorway opens.
A swinging door in a required exit or forming part of a required exit need not swing in the direction of egress if it serves a farm building.
Fire fighting equipment
Fire hydrants and water supplies
- with a total floor area greater than 500 m2; and
- located where a fire brigade station is—
- not more than 50 km from the building as measured along roads; and
- equipped with equipment capable of utilising a fire hydrant.
- provided with a fire hydrant system installed in accordance with AS 2419.1, except reference to ‘4 hours’ water supply in clause 4.2 is replaced with ‘2 hours’; or
- located on the same allotment as an access point to a water supply which—
- has a minimum total capacity of 144,000 litres; and
- is situated so as to enable emergency services vehicles access to within 4 m; and
- is located within 60 m of the building and not more than 90 m from any part of the building.
- A water storage tank.
- A dam.
- A reservoir.
- A river.
- A lake.
- A bore.
- A sea.
- located not less than 10 m from the building; and
- fitted with at least one small bore suction connection and one large bore suction connection where—
- each suction connection is located in a position so as to enable emergency service vehicles access to within 4 m; and
- the suction connections are located not less than 10 m from the building; and
- ‘small bore suction connection’ and ‘large bore suction connection’ have the meanings contained in AS 2419.1.
Fire hose reels
A fire hose reel system need not be provided to serve a farm building where portable fire extinguishers are installed in accordance with I3D11.
Portable fire extinguishers
- one portable fire extinguisher rated at not less than 5ABE in each room containing flammable materials or electrical equipment; and
- one portable fire extinguisher rated at not less than 4A60BE adjacent to every required exit door; and
- location signs complying with clauses 3.3 to 3.9 of AS 2444 above each required portable fire extinguisher.
- of ABE type; and
- not less than 4.5 kg in size; and
- installed in accordance with Section 3 of AS 2444.
Emergency lighting requirements
- with no artificial lighting as permitted by I3D18; or
- with artificial lighting where, if that lighting fails due to an emergency, automatic power supply to the building is provided by a fuel-driven generator.
Design and operation of exit signs
- the use of illuminated exit signs may adversely impact the behaviour or welfare of animals being kept in the building; and
- non-illuminated exit signs are installed in accordance with the requirements of Appendix D of AS/NZS 2293.1 as for an externally illuminated exit sign, and clauses 5.6 and 5.8 of AS/NZS 2293.1.
Height of rooms and other spaces
F5D2 does not apply to a farm shed which has ceiling heights not less than—
- in a room, corridor, passageway or the like — 2.1 m; and
- in a room or space with a sloping ceiling or projections — a height of not less than 2.1 m for at least two-thirds of the floor area of the room or space, and when calculating the floor area of the room or space, any part that has a ceiling height of less than 1.5 m is not included; and
- in a stairway, ramp, landing or the like — 2.0 m measured vertically above the nosing line of stairway treads or the floor surface of the ramp, landing or the like.
- occupants are provided with visibility sufficient for safe movement through suitable alternative means; and
- the use of artificial lighting could adversely affect the function of the building including, but not limited to—
- the behaviour or welfare of animals being kept in the building; or
- the cultivating or propagating of plants or fungi.