GAF MasterFlow High-Capacity Dome Vent, Steel, Mill Finish, 144 Sq. In. NFVA

GAF MasterFlow High-Capacity Dome Vent, Steel, Mill Finish, 144 Sq. In. NFVA

Regular price $59.39

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High-capacity steel roof dome vent

The GAF MasterFlow High-Capacity Dome Vent delivers powerful attic exhaust for homes with little or no ridge ventilation. Constructed of durable steel with a mill finish, it provides 144 sq. in. of net free vent area and is engineered for high-wind performance.


Key Features:

  • High Ventilation Capacity: 144 sq. in. net free vent area moves more hot, moist air out of the attic
  • Durable Construction: Steel body with mill finish stands up to the elements
  • Wind-Resistant Design: Rated to withstand winds up to 110 mph
  • Code Approvals: Miami-Dade, Florida Product Approval, and Texas Department of Insurance RV-38
  • Low-Profile Height: 8 in. overall height for a clean roofline

Specifications Table:

Specification Details
Brand GAF
Series MasterFlow High-Capacity Dome Vent
Material Steel
Finish/Color Mill Finish
Net Free Vent Area (NFVA) 144 sq. in.
Overall Height 8 in. (203 mm)
Wind Resistance 110 mph
Applicable Standards/Approvals Miami-Dade County Approved; Texas Department of Insurance Evaluation - RV-38; Florida Product Approved
Style Ventilation and Drainage
Unit of Measure Each (EA)
Manufacturer Number HCD114 MILL
Product Number GAFHCD144ML

Frequently Asked Questions (FAQ):

Q: What roof types is this vent suited for?
A: Ideal for roofs requiring significant exhaust ventilation, particularly homes with little or no ridge venting.


Q: What is the net free vent area (NFVA)?
A: 144 square inches.


Q: Is it approved for high-wind regions?
A: Yes. It has Miami-Dade, Florida Product Approval, and Texas Department of Insurance RV-38 approvals and a 110 mph wind resistance rating.


Q: What is the material and finish?
A: Steel construction with a mill finish.


Q: How tall is the vent?
A: 8 inches (203 mm) overall height.


Powerful Venting with Streamlined, Architectural Simplicity

This dome vent brings a confident, industrial polish to the roofline while quietly elevating home comfort. I love its clean mill finish and sturdy steel form—functional yet refined. Pair it with a monochrome architectural shingle palette for a cohesive, modern silhouette. For a luxurious home that feels cooler and drier year-round, this is an understated essential.


Upgrade your attic ventilation with this high-capacity, code-approved dome vent for cooler, drier, and more efficient living.

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