1-3 hours Fire Protective Smoke Curtain.
UL 10D, UL 1784 Vertical Opening Protective
Complies with NFPA 80, IBC §706, 707, 708, 709, 710

Fire Rated Smoke curtain SD

The Smoke and Fire Curtain SD is an automatic, gravity-drop barrier with integrated seals. The SD Curtain is ideal for atrium separation and can also be used in openings that can lead to rapid smoke migration.


This vertically deploying opening protective is available with 1-hour and 3-hour fire protective ratings and carries UL 10D for up to 3 hours and UL 1784 for smoke and draft.


The Fire Protective Smoke SD will remain hidden above the ceiling until it’s triggered by the general fire alarm, local smoke detectors, or loss of power (Gravity Fail-Safe System).


  • UL 10D listed and approved for fire protection
  • UL 1784 listed and approved for smoke protection
  • UL listed low-voltage 48VDC motor actuators

Code References

  • Complies with NFPA 80 requirements
  • Complies with IBC §706, 707, 708, 709, 710

Headbox Size

6 1/8″ x 5 7/8″ (w x h)

Fire Rating

1 Hour integrity to 1700°F

3 Hour integrity to 1920°F


Bottom bar

A standard bottom bar is attached to the bottom of the curtain and serves to ensure that the curtain deploys under gravity in a controlled manner (Gravity Fail-Safe).

Head box and fabric

The system incorporates a glass fiber fabric wound around a steel roller that incorporates a 24V permanent magnet roller. The roller assembly is encased in a galvanized steel head box, which can be fixed directly to the building’s structure. The fabric is silver grey and can be printed with custom signage per customer request.

Side guides

The side guides provide a seal between the sides of the curtain fabric and the walls, ensuring that any positive or negative pressures created by a fire will be resisted by the curtain. Side guides can be integrated either into or onto a wall / soffit or into a recess / niche.

Have a quick question? Chat with us at the bottom of this page
Our in-house team responds to chats during business hours
  • Cost effective
  • Gravity Fail safe system
  • Lightweight
  • Compact design
  • Virtually invisible
  • Head box and side guides can be powder coated in all RAL colors
  • Proven performance – tested to 10,000 cycles
Maximum Dimensions

SI-N WIDTH: 14.5 ft SI-N HEIGHT: 9 ft SI-L WIDTH: 14.5 ft SI-L HEIGHT: 19.5 / 18 ft

  • Lobbies
  • Atrium
  • Elevator hoist ways
  • Openings in rated walls