Fire Curtain
fire curtain, fire safety curtain, stage fire barrier
What is a Fire Curtain?
A fire curtain (also called a safety curtain or fire safety curtain) is a fire-resistant barrier installed at the proscenium opening of a theater. In the event of a fire on stage, the fire curtain descends automatically to seal the stage from the auditorium, preventing the spread of fire, heat, and smoke to the audience area.
How It Works
Fire curtains are held in the raised (open) position by an electromagnetic release mechanism connected to the building's fire alarm system. Upon fire detection, the electromagnet releases, the curtain descends under gravity (no power required), descent speed is controlled by a damping mechanism (typically 0.15 – 0.3 m/s), and the curtain seals against the proscenium frame. Materials: Steel fabric, fiberglass with vermiculite coating, or ceramic fiber.
Key Specifications
| Parameter | Typical Range |
|---|---|
| Fire Rating | 1 – 4 hours |
| Descent Speed | 0.15 – 0.3 m/s |
| Material | Steel wire fabric / fiberglass |
| Operation | Gravity descent (fail-safe) |
| Testing | Annual function test required |
Related Standards
- EN 16034 — Fire-resistant curtains (European)
- BS 476 — Fire testing (British)
- NFPA 80 — Fire doors and openings (US)
- WH/T 28 — Chinese fire curtain standard
Frequently Asked Questions
Q: How often does a fire curtain need to be drop-tested, and who should do it?
A: A full gravity-drop test should be performed at least once a year by a certified inspector, with the results documented in your venue safety log. During the test, the curtain must descend smoothly under its own weight — no power assist — and come to a complete seal within the proscenium frame. Between annual tests, we recommend a monthly quick-check: trigger the electromagnetic release (ideally during a dark day when no audience is present), verify the descent speed is within the 0.15–0.3 m/s range, and inspect the bottom seal for gaps. BRD fire curtain systems include a test-mode switch that lets you perform these monthly checks without triggering the building-wide fire alarm, which saves a lot of headaches.