AUST – Essential Property Services advises that the Building Code of Australia (BCA) in clause C3.5 ‘Doorways in fire walls’ states a single fire door or shutter must achieve an insulation level of at least 30 and an FRL equivalent to Specification C1.1. The aggregate width of openings (fire doors) that are not part of a horizontal exit must not exceed half of the length of the fire wall. AS 1905.1 – 2005 deals with the installation of fire doors and AS 1851 – 2005 deals with fire door inspections.

The following illustration from BCA Illustrated depicts an acceptable method of protecting doorways (fire doors) in fire walls.

This installation of a fire door must comply with AS 1905.1-2005 ‘Components for the protection of openings in fire – resistant walls – fire resistant door sets’ and maintenance of fire doors and fire door inspections in accordance with AS 1851-2005 ‘Maintenance of fire protection systems and equipment’ which cover fire doors and fire door inspections.

Building Legislation Table

Refer to our Building Legislation table for further information on the building control process.