Master Flow^® Green Machine™
Dual Powered Roof Exhaust Vent

Effective attic ventilation is critical for a long-lasting roof — yet most homes have insufficient attic ventilation!

A Dual Powered Roof Exhaust Vent will help to:

• Remove excess heat and moisture to protect your roof from premature deterioration
• Safeguard your attic possessions against mildew damage
• Limit the growth of harmful mold
• Protect your roof from premature deterioration and roof rot
• Minimize peeling and extend the life of exterior and interior paint
• Guard against ice damming in harsh winter climates
• Possibly reduce excessive heating and air conditioning costs

Master Flow^® Green Machine™ Dual Powered Roof Exhaust Vents are a key ­part of the GAF Smart Choice^® Roof System Solution, and have even earned the prestigious Good Housekeeping Seal.

Homeowner’s Best Choice

• 24/7 Cooling…
  It works whether the sun is out or not!
  
  
• Uses 80% Less Electricity…
  Versus a standard power attic ventilator*
  
  
• No-Hassle Operation…
  Automatically switches between solar power and house power
  
  
• Thermostat Controlled…
  For additional energy savings
  
  
• Easy Replacement…
  Uniform size makes it easy to swap out an existing vent
  
  
• Excellent Warranty…
  Standard 5 year Ltd. Warranty with 2 Year Labor Plus Protection**
  
  
• Peace of Mind…
  Backed by GAF, North America’s Largest Roofing and Ventilation Manufacturer
  
  
  

Professional’s Best Choice

• Maintenance Free Operation…
  Equipped with a brushless motor that requires no maintenance, unlike traditional motor designs
  
  
• Great Performance…
  Up to 500 CFM for excellent airflow in solar operation
  Up to 900 CFM in AC operation
  
  
• Fully Adjustable Solar Panel…
  Tilt and swivel design for optimal solar exposure
  
  
• Homeowner Satisfaction…
  Environmentally friendly operation
  
  
• Excellent Protection…
  Extra-wide flashing helps prevent leaks
  
  

Usage Recommendations

Total Attic Square Footage	Recommended # of Dual Powered Roof Exhaust Vents	Minimum Intake Ventilation (Net Free Area in Sq. In.)
1600	2	480
2400	3	720
3200	4	960

NOTE: The amount of exhaust ventilation should NEVER exceed the amount of soffit ventilation.

*When running on house power
**See limited warranty for complete coverage & restrictions

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