Hooded Roof Ventilators move large volumes of air efficiently, quietly and with low discharge velocities. They combine venturi design with the latest developments in T-hood construction for long trouble-free service under difficult weather or outside vibration conditions. Watertight, overlapping seams and heavy gauge materials insure against leakage. PennBarry Hooded Roof axial ventilators are designed for aerodynamic efficiency and employ a choice of two propeller types: high speed, cast aluminum and slow speed, fabricated steel. Available in direct drive and belt drive models, they serve supply, exhaust, reversible, gravity-vent and filtered air applications.

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