NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
Search the National Construction Code editions
Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

Filter

Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

22

Specification 22 Smoke-and-heat vents

Specification 22 Smoke-and-heat vents

This Specification contains requirements for automatic smoke-and-heat vents.

Automaticsmoke-and-heat vents must be installed as a system complying with AS 2665 except that permanently open vents may form part of the smoke/heat venting system provided they comply with the relevant criteria for automatic smoke-and-heat vents in AS 2665.

Where a smoke-and-heat vent system is installed to comply with E2D14 to E2D20, then, in addition to thermally released link operation, smoke-and-heat vents must also be initiated by smoke detection complying with S20C6 and S20C8 and arranged in zones to match the smoke reservoirs.