roof ventilators


Low Profile Upblast Propeller Roof Ventilator, Belt Driven (Commercial)


The BSB53 low profile upblast roof ventilator provides cost effective, general purpose ventilation of commercial buildings, with a pleasing low profile design that minimizes extension above the roof line. This unit is designed to exhaust large volumes of air at low to medium static pressures. Typical applications for upblast propeller roof ventilators include warehouses, shopping centers and manufacturing facilities.

Sizes (propeller diameters)

  • 21 to 54 inches (535 mm to 1,375 mm)


  • Airflow to 47,400 CFM (80,500 m3/hour)
  • Static pressure to 1 inch w.g. (250 Pa)