Each October, Fire Prevention Month reminds building professionals that prevention begins long before an emergency. In multi-story buildings, smoke often spreads faster than fire, moving through stairwells, shafts, and mechanical openings. Among these, the elevator shaft is one of the most direct routes for smoke migration, linking every floor through a single open pathway.
During a fire, smoke can reach upper levels in less than two minutes, overwhelming pressurization systems and limiting visibility for evacuation. How a building performs in those first moments depends on design choices and integrated life-safety systems planned well before occupancy.
Elevators and the Challenge of Vertical Smoke Spread
Elevators make buildings accessible and efficient, but they also create one of the most challenging areas to protect in a fire-rated design. Each elevator hoistway connects multiple floors, forming a vertical channel, much like a chimney, that can carry smoke throughout the building quickly if not properly contained.
Pressurization and vestibules help manage this movement, but have operational limits. Changes in air pressure, fan performance, or door seals can compromise containment during an active event. Adding enclosed lobbies or permanent barriers may improve protection, but can reduce accessibility, add cost for structural changes and/or change the intended design.
Dynamic smoke containment provides a reliable and cost-effective solution. Deployable smoke curtains activate automatically when triggered by a fire alarm, creating a temporary yet effective barrier in a fire/smoke event that restores compartmentation and slows smoke movement through elevator hoistway openings.
Integrating Active Barriers into Fire Protection
Smoke curtains are tested under the same conditions as fire-rated doors and other life-safety assemblies. Under UL 10D, they must withstand fire exposure for up to two hours, and under UL 1784, they must meet strict air-leakage limits for smoke control.
When installed at elevator openings, these systems provide a tested, code-recognized method to maintain compartmentation and limit vertical smoke movement through the hoistway.
A well-integrated curtain connects directly to the building’s alarm, elevator, and control systems. It deploys automatically within seconds, restores separation without manual input, and remains functional during power loss through standard/available battery backup. Manual egress options allow safe passage for occupants and first responders when needed.
The Smoke Guard M2100SE Elevator Smoke Curtain
The Smoke Guard M2100SE is engineered specifically for elevator openings, providing fire- and smoke-rated protection without the need for unsightly and costly enclosed lobbies or additional wall assemblies.
Key features include:
- Automatic activation on smoke detector signal (not general alarm)
- Gravity fail-safe mechanism for reliable operation during power loss
- Rated for openings up to 10 ft wide × 10 ft tall
- Compact housing: 6⅜ in high × 6¼ in deep
- Integrated side guides and bottom bar that seal against the floor for a smoke- and draft-control barrier
- The M2100SE meets IBC, NFPA, and ICC-ES AC77 requirements and is listed to:
- UL 10D for fire protection
- UL 1784 for air-leakage performance
This performance-based system integrates smoke control into the building’s life-safety strategy rather than functioning as a separate feature.
Design Simplicity and Operational Reliability
Fire prevention begins in design. A dependable smoke containment system should be simple to install, operate, and maintain. The Smoke Guard M2100SE meets those standards for both new construction and retrofit projects.
The M2100SE’s concealed housing preserves architectural continuity while providing a code-compliant solution for elevator smoke control. The system creates a fire- and smoke-rated barrier for elevator openings and other vertical enclosures while minimizing visual and spatial impact.
In buildings where elevators serve as the primary form of vertical transportation, combining safety and design continuity enhances both performance and compliance.
When alarms sound, the curtain deploys automatically. If power is lost, it continues operating through stored energy within a battery back-up feature, standard with the M2100SE system. When visibility or access is needed, its manual egress feature allows safe movement through protected openings. Each function contributes to the goal of containing smoke, protecting occupants, and maintaining clear evacuation routes.
Learn more about the M2100SE Elevator Smoke Curtain and how it supports code compliance and occupant protection.