roof ventilators

BSB53 Roof Ventilator


Low Profile Upblast 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 roof ventilators include warehouses, shopping centers and manufacturing facilities.

Sizes (impeller diameters)

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


  • Airflow to 52,000 CFM (88,300 m3/hour)
  • Static pressure to 1 inch w.g. (250 Pa)