MasterFlow Vents - MasterFlow Green Machine Dual Powered

Master Flow® Green Machine™

Effective attic ventilation is critical for a long-lasting roof—yet most homes have an 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 EcoSmart Roof Vent has earned the prestigious Good Housekeeping Seal (U.S. only), which means that Good Housekeeping stands behind this product. (Refer to Good Housekeeping Magazine for its consumer protection policy. Applicable in U.S. only.) (See Details)

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 (See Details)

  • Easy Replacement…
    Uniform size makes it easy to swap out an existing vent

  • Excellent Warranty…
    Standard 5-year Ltd. Warranty with 2-Year Labor Protection Plus**

  • 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 750 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.)

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

  1. Miami-Dade County Product Control Approved
  2. Florida Building Code Approved
  3. Texas Department of Insurance

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


All documents are U.S. English unless otherwise noted

Professional Installation
GAF Roof Wizard Product Pricing and Where to Buy
© Copyright 2019 GAF | Privacy Policy and Legal | GAF Canada | GAF U.S.