roof ventilators


Smoke & Heat Removal Ventilator


The SV40 roof ventilator is designed for use as a standard roof exhaust fan and as a high temperature smoke and heat removal fan. The tall design of this unit is especially effective in discharging smoke and/or fumes high above the roof line and away from surrounding ventilation systems.

The Model SV40 is capable of emergency smoke and heat evacuation (500°F for 4 hours and 1000°F for 15 minutes per UL Standard) to protect your facility and help meet insurance regulations. With modifications, the SV40 can withstand continuous operation at 600°F. Complies with Industrial Risk Insurers’ (IRI) recommendations for smoke and heat ventilation.

Sizes (impeller diameters)

  • 24 to 60 inches (610 mm to 1,525 mm)


  • Airflow to 70,700 CFM (120,100 m3/hour)
  • Static pressure to 1.5 inches w.g. (370 Pa)

Installation Manual