Part C3 Compartmentation and separation
NSW C3D6 Class 9 buildings2019: C2.5
Delete subclause C3D6(3) and insert NSW C3D6(3) as follows:
- A building must be divided into areas not more than 500 m2 by smoke proof walls complying with Specification 11.
- A fire compartment must be separated from the remainder of the building by fire walls and notwithstanding C3D8 and Specification 5, floors with an FRL of not less than 60/60/60.
- Except for walls provided in accordance with (3)(a) and (b), non-loadbearing internal walls, and if a building is of Type C construction — all internal walls, between and bounding sole-occupancy units and bounding a public corridor in a resident use area must:
- be lined on each side with standard grade plasterboard not less than 13 mm thick or a material with at least an equivalent level of fire protection; and
- if provided with cavity insulation, contain only non-combustible insulation; and
- extend to the underside of—
- the floor next above; or
- a ceiling lined with standard grade plasterboard not less than 13 mm thick or an equivalent non-combustible material; or
- a non-combustible roof covering; and
- not incorporate any penetrations above door head height unless the penetrations are adequately stopped to prevent the free passage of smoke; and
- be smoke sealed with intumescent putty or other suitable material at any construction joint, space or the like between the top of the wall and the floor, ceiling or roof.
- Loadbearinginternal walls must comply with the requirements of Specification 5 and (c)(ii), (iii), (iv) and (v) above.
- Ancillary use areas containing equipment or materials that are a high potential fire hazard, must be separated from the sole-occupancy units by smoke proof walls complying with Specification 11.
- The ancillary use areas referred to in (e) include, but are not limited to, the following:
- A kitchen and related food preparation areas having a combined floor area of more than 30 m2.
- A laundry, where items of equipment are of the type that are potential fire sources (e.g. gas fire dryers).
- Storage rooms greater than 10 m2 used predominantly for the storage of administrative records.
- Openings in fire walls must be protected as follows:
- Doorways — self-closing or automatic closing –/60/30 fire doors.
- Windows — automatic or permanently fixed closed –/60/– fire windows or –/60/– automatic fire shutters.
- Other openings — construction having an FRL not less than –/60/–.