Skip to content
GAF Master Flow 12 in. Galvanized Externally Braced Turbine Vent, Weathered Wood
Regular price $148.00Orders start at $399 — combine any items to reach the minimum. Learn more
GAF Master Flow 12 in. Galvanized Externally Braced Turbine Vent, Weathered Wood
The GAF Master Flow 12 in. galvanized externally braced turbine vent uses wind power to pull heat and moisture out of the attic, helping extend the life of your roof. It features a stainless dual-bearing system and standard and heavy weight galvanized construction. This listing covers one 12 in. weathered wood turbine sold per piece.
Key Features:
- Wind-powered exhaust: Uses the wind to pull heat and moisture-laden air from the attic.
- Stainless dual bearings: A stainless dual-bearing system provides extra durability and smooth spinning.
- External bracing: Manufactured with external bracing in standard and heavy weight galvanized construction.
- Rain-shedding vanes: Double ribbed vanes with a convex top direct wind-driven rain away from the unit.
- Extends roof life: The 12 in. size allows damaging heat and moisture to escape, which can help extend roof life.
- Weathered wood cap: Weathered wood color blends with common shingle tones.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Sell unit | 1 piece |
| Product line | GAF Master Flow Externally Braced Turbine |
| Available colors | Weathered Wood |
| Available sizes | 12 in. (305 mm) |
| Material | Galvanized steel |
| Color / finish | Weathered Wood |
| Dimensions | 12 in. (305 mm) turbine |
| Intended use | Attic ventilation for residential roofing |
Coverage & How Much You Need:
One turbine ventilates the attic space it is installed on; size the number of vents to your attic's net free ventilation requirements and balance with intake ventilation. Follow GAF's ventilation calculations for your roof area.
Fit and Compatibility:
Part of the GAF Master Flow ventilation line; pair with compatible intake vents or soffit ventilation for balanced airflow. Install on shingled residential roofs with an appropriately sized vent opening.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 12 in. galvanized externally braced turbine vent in weathered wood.
Q: How does it work?
A: Wind spins the turbine, which pulls heat and moisture-laden air out of the attic through the vent.
Q: Is it durable?
A: Yes, it uses a stainless dual-bearing system and standard and heavy weight galvanized construction with external bracing.
Q: Will rain get in?
A: Double ribbed vanes with a convex top direct wind-driven rain away from the unit.
Q: How many do I need?
A: Calculate your attic's net free ventilation area and balance turbine exhaust with adequate intake ventilation per GAF's guidance.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Turbines work best when paired with generous soffit intake; without intake, the fan cannot move air effectively. Set the turbine base flush to the roof plane and seal the curb flange properly to prevent leaks. Choose galvanized like this for a budget-friendly exhaust option, and match the weathered wood cap to your shingle color.
Work at roof edge and height only with proper fall protection, and keep hands clear of the spinning turbine during windy conditions.
Add the GAF Master Flow 12 in. Galvanized Externally Braced Turbine to your roof for dependable wind-powered attic ventilation.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
