Fire doors are passive protection—they don't activate until a fire occurs. At that critical moment, every component must perform perfectly. Failed hinges mean a fallen door. A failed closer means an open door and spreading smoke. A failed latch means flames bypass the barrier.
With the fire safety inspection standards continue to rise, non-compliant hardware leads to failed inspections and project delays.
| Component | Function | Reference Standard |
|---|---|---|
| Door closer | Automatically closes door after opening | EN 1154 |
| Hinges | Supports door weight, enables smooth operation | EN 1935 |
| Locks & latches | Keeps door closed under fire pressure | EN 12209 / EN 14846 |
| Intumescent seals | Expands with heat to block smoke | — |
| Door coordinator | Ensures correct closing order for double doors | EN 1158 |
| Hold-open device | Holds door open, releases on fire alarm | EN 1155 |
Material Selection Guide for Different Climates:
| Material | Corrosion Resistance | Best For |
|---|---|---|
| 316L Stainless | Excellent | Coastal projects within 5km of shore |
| 304 Stainless | Good | Interior, inland locations |
| Brass forging | Good | Hinges, structural parts |
| Zinc alloy | Poor (coating-dependent) | Budget interior only |
Expert tip: For coastal projects, specify 316L stainless. The higher upfront cost is recovered through avoided replacement cycles.
| Project Type | Recommended Hardware | Priority |
|---|---|---|
| High-rise residential | Grade 8 closers, 304 stainless hinges | BCA compliance |
| Coastal hotel | 316L stainless, 720-hour salt spray | Corrosion resistance |
| Shopping mall | TISI-certified, panic hardware | High-traffic durability |
| Industrial facility | SNI-certified, brass forging | Heavy-duty cycles |
Closer operation: door fully closes and latches from any position
Hinges: no play, corrosion, or damage
Intumescent seals: continuous and intact
Latch: engages fully without binding
Warning signs: door won't self-close, visible corrosion on hardware, gaps around seals.
A fire door assembly is a system. Every component must maintain certification as an assembly. Mixing certified parts from different manufacturers may void the fire rating unless separately tested.
Smart selection = compliance + durability + safety
