Smoke Management Systems

Smoke extraction fans are the backbone of any effective smoke management strategy, designed to rapidly remove hot smoke and toxic gases from affected zones during a fire emergency. We supply and install high-temperature rated fans capable of operating continuously at 300°C for a minimum of 60 minutes, ensuring safe conditions for evacuation and firefighting operations. Our installations are fully coordinated with fire alarm systems to enable automatic activation upon detection, complying with ADCD and DOE requirements.

Staircase pressurization systems maintain a higher air pressure within escape stairwells compared to the rest of the building, preventing smoke infiltration and keeping evacuation routes clear during a fire. We engineer and install dedicated pressurization fan units with automatic control systems that maintain precise pressure differentials as required by NFPA 92 and local civil defense standards. Our designs account for door-opening forces, building height, and leakage paths to ensure consistent, code-compliant performance under real fire conditions.

Fresh air fans play a critical dual role in buildings — supporting everyday ventilation for occupant comfort while integrating into the smoke management strategy during emergency scenarios. We design systems that introduce controlled volumes of clean outside air into occupied spaces, corridors, and refuge areas in compliance with ASHRAE and local mechanical codes. Each installation is balanced and commissioned to ensure proper airflow distribution across all building zones under both normal and emergency operating modes.

Make-up air fans replenish the air exhausted by smoke extraction systems, preventing negative pressure build-up that would otherwise reduce extraction effectiveness and compromise fire door operation. Our engineers carefully calculate the required make-up air volumes for each zone to maintain balanced system performance throughout a fire event. These units are installed with appropriate fire ratings and interlocked with the overall smoke control sequence to activate automatically in response to fire alarm signals.