
GAF Master Flow Galvanized Externally-Braced Wind Turbine, 12 in., Black
Master Flow 12" Externally-Braced Roof Wind Turbine
This Master Flow galvanized rotary turbine provides natural attic ventilation with an externally-braced design for dependable, low-maintenance performance. Built with upper and lower stainless steel bearing systems, it spins freely to help reduce heat and moisture in the attic.
Key Features:
- Durable Construction: Galvanized body with externally-braced design for long-lasting reliability
- Smooth Operation: Upper and lower stainless steel bearing systems for years of trouble-free rotation
- Roof Pitch Compatibility: Installs on 2:12 to 12:12 roof slopes
- Code Compliant: Approved by Florida Building Code, Miami-Dade County, and Texas Department of Insurance (RV-37)
- Attractive Finish: Black color complements many roofing styles
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 12" |
| Color | Black |
| Base Material | Stainless Steel |
| Body Material | Galvanized |
| Design | Externally braced |
| Roof Pitch Range | 2:12 to 12:12 |
| Approvals/Certifications | Florida Building Code Approved; Miami-Dade County Approved; Texas Department of Insurance Evaluation - RV-37 |
| Bearing System | Upper and lower stainless steel bearings |
| Style | Ventilation and Drainage |
| Weight | 10.3 lb |
| Warranty | Lifetime Limited Warranty |
| Manufacturer Number | GC12EBL |
| Product Number | GAFGC12EBL |
Frequently Asked Questions (FAQ):
Q: What roof pitches can this turbine be installed on?
A: It is suitable for roof slopes from 2:12 to 12:12.
Q: What size is the turbine opening?
A: This variant has a 12-inch diameter.
Q: Does it require electricity to operate?
A: No. It uses wind to spin and naturally ventilate the attic.
Q: What materials are used in the bearings?
A: It features upper and lower stainless steel bearing systems.
Q: Is it approved for use in high-wind areas?
A: Yes. It carries approvals from the Florida Building Code, Miami-Dade County, and the Texas Department of Insurance (RV-37).
A Sleek Crown for High-Performance Roof Ventilation
With its sculptural, helical silhouette, this turbine adds a refined industrial note to the roofline while quietly elevating comfort indoors. The externally braced cage is a subtle design detail that feels purposeful and architectural. Pair the black finish with charcoal shingles for a seamless, modern statement that disappears into the skyline. It’s a smart, stylish essential for effortless, luxurious living through better airflow.
Choose this Master Flow 12-inch turbine for reliable, code-approved attic ventilation that looks sharp and installs easily.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Master Flow 12" Externally-Braced Roof Wind Turbine
This Master Flow galvanized rotary turbine provides natural attic ventilation with an externally-braced design for dependable, low-maintenance performance. Built with upper and lower stainless steel bearing systems, it spins freely to help reduce heat and moisture in the attic.
Key Features:
- Durable Construction: Galvanized body with externally-braced design for long-lasting reliability
- Smooth Operation: Upper and lower stainless steel bearing systems for years of trouble-free rotation
- Roof Pitch Compatibility: Installs on 2:12 to 12:12 roof slopes
- Code Compliant: Approved by Florida Building Code, Miami-Dade County, and Texas Department of Insurance (RV-37)
- Attractive Finish: Black color complements many roofing styles
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 12" |
| Color | Black |
| Base Material | Stainless Steel |
| Body Material | Galvanized |
| Design | Externally braced |
| Roof Pitch Range | 2:12 to 12:12 |
| Approvals/Certifications | Florida Building Code Approved; Miami-Dade County Approved; Texas Department of Insurance Evaluation - RV-37 |
| Bearing System | Upper and lower stainless steel bearings |
| Style | Ventilation and Drainage |
| Weight | 10.3 lb |
| Warranty | Lifetime Limited Warranty |
| Manufacturer Number | GC12EBL |
| Product Number | GAFGC12EBL |
Frequently Asked Questions (FAQ):
Q: What roof pitches can this turbine be installed on?
A: It is suitable for roof slopes from 2:12 to 12:12.
Q: What size is the turbine opening?
A: This variant has a 12-inch diameter.
Q: Does it require electricity to operate?
A: No. It uses wind to spin and naturally ventilate the attic.
Q: What materials are used in the bearings?
A: It features upper and lower stainless steel bearing systems.
Q: Is it approved for use in high-wind areas?
A: Yes. It carries approvals from the Florida Building Code, Miami-Dade County, and the Texas Department of Insurance (RV-37).
A Sleek Crown for High-Performance Roof Ventilation
With its sculptural, helical silhouette, this turbine adds a refined industrial note to the roofline while quietly elevating comfort indoors. The externally braced cage is a subtle design detail that feels purposeful and architectural. Pair the black finish with charcoal shingles for a seamless, modern statement that disappears into the skyline. It’s a smart, stylish essential for effortless, luxurious living through better airflow.
Choose this Master Flow 12-inch turbine for reliable, code-approved attic ventilation that looks sharp and installs easily.






















