Specification 11 Smoke-proof walls in health-care and residential care buildings
S11C1
Scope
2019: Spec C2.5: 1
S11C2
Class 9a health-care buildings
2019: Spec C2.5: 2
Smoke-proof walls required by C3D6 in Class 9a health-care buildings must comply with the following:
- Be non-combustible and extend to the underside of—
- the floor above; or
- a non-combustible roof covering; or
- a ceiling having a resistance to the incipient spread of fire to the space above itself of not less than 60 minutes.
- Not incorporate any glazed areas unless the glass is safety glass as defined in AS 1288.
- Only have doorways which are fitted with smoke doors complying with Specification 12.
- Have all openings around penetrations and the junctions of the smoke-proof wall and the remainder of the building stopped with non-combustible material to prevent the free passage of smoke.
- Incorporate smoke dampers where air-handling ducts penetrate the wall unless the duct forms part of a smoke hazard management system required to continue air movement through the duct during a fire.
S11C3
Class 9c buildings
2019: Spec C2.5: 3
Smoke-proof walls required by C3D6 in Class 9c buildings must comply with the following:
- The wall may be lined on one side only.
- Linings on the wall must be non-combustible and extend to the underside of—
- the floor above; or
- a non-combustible roof covering; or
- a flush plasterboard ceiling lined with 13 mm standard grade plasterboard or a fire-protective covering, with all penetrations sealed against the free passage of smoke.
- If plasterboard is used in the lining on a wall, it must be a minimum of 13 mm standard grade plasterboard.
- Not incorporate any glazed areas unless the glass is safety glass as defined in AS 1288.
- Only have doorways which are fitted with smoke doors complying with Specification 12.
- Have all openings around penetrations and the junctions of the smoke-proof wall and the remainder of the building stopped with non-combustible material to prevent the free passage of smoke.
- Incorporate smoke dampers where air-handling ducts penetrate the wall unless the duct forms part of a smoke hazard management system required to continue air movement through the duct during a fire.
S11C4
Doorways in smoke-proof walls
2019: Spec C2.5: 4
A door required by C3D6 or this Specification to be smoke-proof or have an FRL, other than one that serves a fire compartment provided with a zone pressurisation system in accordance with AS 1668.1, must provide a smoke reservoir by not extending within 400 mm of the underside of—
- a roof covering; or
- the floor above; or
- an imperforate false ceiling that will prevent the free passage of smoke.