Sliding Fire Doors
Sliding Fire Doors
The strategy of using compartmentation to manage and resist the spread of fire within buildings is a long-established fire engineering practice, with appropriate methods extensively prescribed in the Australian building codes.
This is generally achieved by using fire-rated wall systems to divide areas into manageable risk sizes. One of the inevitable outcomes of this strategy is that there will be situations where large openings are required in the walls to allow for the effective movement of plant or equipment, people, vehicles, and machinery, or where the use of conventional side-hung doors is impractical due to limited space.
Sliding fire doors have been developed for these situations. These sliding fire doors have been approved to AS 1530 Part 4 to suit the maximum Fire Resistance Level requirements of the Australian Building Regulations.
The internal board construction gives sliding fire doors new slimline and lightweight qualities that have never before been seen in such fire door constructions.
Sliding fire doors are specified for a large range of industrial and commercial applications. They are generally specified for use in factories, warehouses, car parks, shopping complexes, hospitals, schools, and institutions.
These sliding fire doors are produced from the same material as the hinged fire doors, featuring a solid, non-laminated homogenous construction containing no asbestos or other mineral fibers.
Requirements
Typical Sliding Fire Doorset Requirements
- Comply with AS 1905.1 and the relevant State Building Code of Australia.
- In the closed position, the door must have an overlap of at least 100 mm around the opening at the head and vertical edges of the doorset.
- In multiple door leaf configurations, each leaf must overlap another by at least 100 mm.
- For doors that are held open during normal operation, a magnetic hold-open device must be incorporated. This device should be deactivated by any suitable fire alarm system to ensure the sliding door closes.
- Plasterboard partition wall systems require special preparation; please consult the manufacturer for further details.
Door Set Configuration
The configuration of a sliding fire door system selected for a specific application depends on the size of the opening to be covered and the available space around the sides and above the opening. The different sliding door configurations available include:
- Single Leaf Sliding Fire Doors
- Bi-Parting Sliding Fire Doors
- Multiple Leaf Sliding Fire Doors
- Combination Multiple Leaf Bi-Parting Sliding Fire Doors
Optional Features
Sliding fire doors can be customized with the following options:
- Automated sliding door control
- Speed limiting devices for closing speed control
- Mild steel, stainless steel, and plywood facings
Maintenance Requirements
Due to the size, weight, and complexity of the operating systems, it is crucial that building owners and operators adhere to the maintenance requirements specified in AS1851 as a minimum standard to ensure effective operation of the system in an emergency.
All sliding doors have counterweight assemblies located at the leading or trailing edges. Bi-Parting, Multiple Leaf, and Combination systems may require more than one counterweight system, depending on the size.
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