GAF MasterFlow Automatic Shutter for Power Gable Vent, Aluminum

GAF MasterFlow Automatic Shutter for Power Gable Vent, Aluminum

Regular price $45.42

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MasterFlow Automatic Gable Vent Shutter

Automatic shutter for MasterFlow power gable vents that opens when the fan runs and closes when off. Aluminum construction helps block rain, snow, and insects from entering the attic.


Key Features:

  • Automatic Operation: Louvers open with fan operation and close when off to help block backdrafts
  • Weather and Pest Protection: Helps prevent rain, snow, and insect infiltration into the attic
  • Durable Construction: Made from aluminum for long-lasting performance
  • Code Approvals: Listed with Miami-Dade, Texas Department of Insurance, and Florida Building Code
  • Easy Integration: Designed for use with MasterFlow power gable vent systems

Specifications Table:

Specification Details
Manufacturer Part Number SGM20
Product Number GAFSGM20
Material Aluminum
Weight 4 lb
Unit of Measure Each
Wind Resistance 110 mph
Applicable Standards/Approvals Miami-Dade Product Control Approval; Texas Department of Insurance; Florida Building Code Approval
Style/Category Ventilation and Drainage
Product Type Automatic shutter for power gable vent
Long Description Opens automatically when the vent is operating and helps prevent rain, snow, and insect infiltration when the vent is off.

Frequently Asked Questions (FAQ):

Q: What vents is this shutter compatible with?
A: It is designed for use with MasterFlow power gable vent systems.


Q: Does it open and close automatically?
A: Yes, the louvers open when the power gable vent operates and close when it is off.


Q: What is it made of?
A: The shutter is constructed from aluminum.


Q: Does it have any approvals or ratings?
A: Yes—Miami-Dade Product Control Approval, Texas Department of Insurance, and Florida Building Code Approval.


Q: What wind resistance rating does it have?
A: It is rated for 110 mph wind resistance, per the supplier data.


Streamlined Protection for a Polished Gable

Sleek aluminum louvers lend a crisp, architectural edge while discreetly guarding the attic from the elements. I love how the automatic action keeps the facade clean—no visible hardware, just a refined frame and tailored slats. Pair it with a fresh white soffit and charcoal shingles for a high-contrast silhouette. It’s a smart, quietly luxurious finishing touch that elevates curb appeal and performance alike.


Upgrade your gable vent with this automatic aluminum shutter for cleaner airflow and reliable, weather-ready protection.

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