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Sliding Fire Doors
Stronghold sliding fire doors are manufactured strictly in accordance to SANS 1253:2003 edition 3 specifications for fire doors and fire shutters and will provide a rating of two hours. Their flush faced appearance and slim-line construction, make them an ideal solution, for openings where headroom restrictions prohibit other types of doors. They can be designed to blend in with the surrounding structure or as a feature, due to their versatility.
| DESCRIPTION | CLASS A | CLASS B | CLASS C | CLASS D | CLASS E | CLASS F |
|---|---|---|---|---|---|---|
| Stability | 1 Hour | 2 Hours | 2 Hours | 2 Hours | 1/2 Hour | 1/2 Hour |
| Integrity | 1/2 Hour | 1 Hour | 2 Hours | 2 Hours | 1/2 Hour | 1/2 Hour |
| Insulation | 1/2 Hour | 1 Hour | N/A | 2 Hours | 1/2 Hour | N/A |
| Impact Test | N/A | N/A | Yes | Yes | N/A | N/A |
General Requirements
A sliding door shall be so designed and constructed that, when the door is installed in accordance with the manufacturer’s instructions and closed,
• The average floor clearance does not exceed 12mm, and
• The average clearance between the door and the overlap section of the walls does not exceed 10mm, and the maximum clearance does not exceed 15mm.
Stability
The door or assembly shall withstand the prescribed fire exposure and effectively close an opening without the doors moving out of the frame by more than 25mm
Integrity
The door or assembly shall withstand the prescribed fire exposure without the development, at any point of the door, of a straight-through gap of width that exceeds 6mm
Insulation
The door or assembly shall withstand the prescribed fire exposure without the mean temperature of the exposed face rising to more than 140°C initial ambient temperature, or the temperature at any point of the face rising to more than 180°C above initial temperature
Impact Test
(Class C & D assemblies only) – enables the door to resist two successive impacts of a sandbag 250 mm in diameter and a mass of 27kg without the formation of any opening wider than 25 mm. This test, which is fully described in The South African National Standard – Section 5.5 and 5.6.
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