About Master Flow™ GreenMachine™ Dual‑Powered Roof Vent

The Dual Powered Roof Vent – ERVHYBRID switches automatically between solar and house power to help reduce excessive heat and moisture in the attic during cloudy weather or at night. It Includes thermostat control and helps reduce energy costs associated with operating a purely house-powered vent1.  Both models are eligible for coverage under GAF enhanced warranties when installed by a contractor certified by GAF in connection with a qualifying roofing system2.

  • Great Performance:Up to 525 CFM (14.16 m3/min) in solar operation3 up to 750 CFM (21.24 m3/min) in AC operation for excellent airflow.3
  • Durable Solar Panel: Meets UL 1703 for solar panel impact resistance.
  • Fully Adjustable Solar Panel:Tilt-and-swivel design for optimal solar exposure.
  • Peace Of Mind:Backed by 5-yr. limited warranty with 2-yr.Labor Protection Plus Plan.2
  • 1 Energy cost savings are not guaranteed

    2 See GAF System Plus, Silver Pledge, and Golden Pledge Limited Warranties for complete coverage and restrictions. When not eligible for coverage under GAF enhanced warranties, see Master Flow Ventilation Products Limited Warranty, Master Flow Powered Ventilation Products Limited Warranty or Master Flow Wifi Attic Vent Limited Warranty (depending on product) for complete coverage and restrictions.

    3 Based on GAF ASHRAE/ANSI standard airflow testing.

Features & Benefits

Master Flow™  GreenMachine™ Dual‑Powered Roof Vent

Earn GAF Rewards when you buy GAF Master Flow™ ventilation products

Master Flow™ ventilation products are eligible for GAF Rewards points. Visit GAF Rewards for a complete list of qualifying products.
Master Flow™  GreenMachine™ Dual‑Powered Roof Vent

Eligible accessory product in the Attic Ventilation Category of GAF Residential Enhanced and WindProven™ Limited Warranties

*15-year WindProven™ Limited Wind Warranty covers GAF Shingles with LayerLock® Technology only and requires the use of GAF Starter Strips, Roof Deck Protection, Ridge Cap Shingles, and Leak Barrier or Attic Ventilation. See GAF Roofing System Limited Warranty for complete coverage and restrictions. Visit gaf.com/LRS for qualifying GAF products. For installations not eligible for the WindProven Limited Wind Warranty, see GAF Shingleand Accessory Limited Warranty, Master Flow™Ventilation Products Limited Warranty,or Master Flow™ Powered Ventilation Products Limited Warranty (depending on product) for complete coverage and restrictions.

Product Documentation