Belt Driven Up-Blast Roof Ventilator
Patterson's belt driven Up-Blast roof ventilator is a powerful and efficient fan engineered for industrial and commercial applications. Our standard Up-Blast fan sizes are 36", 42" and 48" with air volumes ranging from 13,000 to 45,000 CFM at 0" static pressure.  Manufactured of heavy gauge all-galvanized steel for a long-lasting solution in discharging heat, gases, vapors and other airborne contaminates. The Up-Blast roof ventilator is ideally suited for use in foundries, chemical plants, plating shops, welding shops or any other harsh environment.



BENEFITS:
• Provides maximum air flow
• Positive damper door opens and closes automatically
• Optimum performance with minimum noise
• No assembly required
• Rust-Free for long service life

FEATURES:
• Built of heavy gauge, galvanized steel
• Adjustable, aluminum extruded blades
• Water tight rain channel
• Galvanized wind band for protection from crosswinds
• Deep venturi orifice for quiet operation