
GAF Master Flow Galvanized Externally-Braced Replacement Wind Turbine Head, 12 in. Diameter, Mill Finish
12" Galvanized Externally-Braced Wind Turbine Head
This GAF Master Flow replacement wind turbine head enhances attic ventilation with a durable, galvanized construction and external bracing for stability. Stainless steel upper and lower bearing systems deliver smooth, long-lasting rotation for trouble-free performance.
Key Features:
- Durable Construction: Galvanized steel head with external braces for added stability in high winds
- Smooth Operation: Upper and lower stainless steel bearings provide years of maintenance-free performance
- Fits Common Roof Pitches: Compatible with 2:12 to 12:12 roof slopes
- Energy-Free Ventilation: Wind-powered design helps remove heat and moisture without electricity
- 12-Inch Diameter: Sized for efficient airflow and easy replacement of existing turbine heads
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 12 in |
| Finish/Color | Mill Finish |
| Material | Galvanized steel head; stainless steel bearings |
| Bearing Type | Upper and lower stainless steel bearing systems |
| Roof Pitch Compatibility | 2:12 to 12:12 |
| Approvals/Certifications | Florida Building Code Approved; Miami-Dade County Approved; Texas Department of Insurance Evaluation RV-37 |
| Style | Externally-braced replacement head |
| Unit of Measure | Each (EA) |
| Manufacturer Number | 17GT12EMIBG |
| Product Number | GAFGT12TH |
Frequently Asked Questions (FAQ):
Q: What roof pitches is this turbine head compatible with?
A: It is approved for installations on roof slopes from 2:12 to 12:12.
Q: Does this unit require power?
A: No, it is wind-driven and operates without electricity.
Q: What materials are used in the bearings?
A: It features upper and lower stainless steel bearing systems for long service life.
Q: Is this a full turbine or a replacement head?
A: This is a replacement wind turbine head designed to mount onto an existing base.
Q: What approvals or evaluations does it carry?
A: Florida Building Code, Miami-Dade County, and Texas Department of Insurance Evaluation RV-37.
Sculptural Utility for a Clean, Breezy Roofline
This turbine’s sleek galvanized silhouette brings a polished, architectural note to the roof while quietly elevating comfort indoors. I love the rhythmic blades and confident external bracing—functional details that read as modern industrial jewelry. Pair it with crisp metal flashings and a cool gray shingle palette for a cohesive, purposeful look. Consider it a small yet essential luxury that keeps the home feeling fresh and beautifully composed.
Upgrade your attic ventilation today with this durable, wind-powered GAF Master Flow turbine head for long-lasting, code-approved performance.
Original: $39.60
-70%$39.60
$11.88Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
12" Galvanized Externally-Braced Wind Turbine Head
This GAF Master Flow replacement wind turbine head enhances attic ventilation with a durable, galvanized construction and external bracing for stability. Stainless steel upper and lower bearing systems deliver smooth, long-lasting rotation for trouble-free performance.
Key Features:
- Durable Construction: Galvanized steel head with external braces for added stability in high winds
- Smooth Operation: Upper and lower stainless steel bearings provide years of maintenance-free performance
- Fits Common Roof Pitches: Compatible with 2:12 to 12:12 roof slopes
- Energy-Free Ventilation: Wind-powered design helps remove heat and moisture without electricity
- 12-Inch Diameter: Sized for efficient airflow and easy replacement of existing turbine heads
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 12 in |
| Finish/Color | Mill Finish |
| Material | Galvanized steel head; stainless steel bearings |
| Bearing Type | Upper and lower stainless steel bearing systems |
| Roof Pitch Compatibility | 2:12 to 12:12 |
| Approvals/Certifications | Florida Building Code Approved; Miami-Dade County Approved; Texas Department of Insurance Evaluation RV-37 |
| Style | Externally-braced replacement head |
| Unit of Measure | Each (EA) |
| Manufacturer Number | 17GT12EMIBG |
| Product Number | GAFGT12TH |
Frequently Asked Questions (FAQ):
Q: What roof pitches is this turbine head compatible with?
A: It is approved for installations on roof slopes from 2:12 to 12:12.
Q: Does this unit require power?
A: No, it is wind-driven and operates without electricity.
Q: What materials are used in the bearings?
A: It features upper and lower stainless steel bearing systems for long service life.
Q: Is this a full turbine or a replacement head?
A: This is a replacement wind turbine head designed to mount onto an existing base.
Q: What approvals or evaluations does it carry?
A: Florida Building Code, Miami-Dade County, and Texas Department of Insurance Evaluation RV-37.
Sculptural Utility for a Clean, Breezy Roofline
This turbine’s sleek galvanized silhouette brings a polished, architectural note to the roof while quietly elevating comfort indoors. I love the rhythmic blades and confident external bracing—functional details that read as modern industrial jewelry. Pair it with crisp metal flashings and a cool gray shingle palette for a cohesive, purposeful look. Consider it a small yet essential luxury that keeps the home feeling fresh and beautifully composed.
Upgrade your attic ventilation today with this durable, wind-powered GAF Master Flow turbine head for long-lasting, code-approved performance.






















