
GAF MasterFlow Square-Top Aluminum Roof Louver R50A, 15 in., Mill Finish, 50 Sq. In. NFVA
MasterFlow R50A Aluminum Roof Louver, Square-Top
Durable aluminum roof louver designed for utility and attic exhaust ventilation. The square-top, square-throat R50A provides 50 sq. in. of net free vent area and is suitable for roof pitches 3:12 or greater.
Key Features:
- Aluminum Construction: Corrosion-resistant mill finish for long-lasting rooftop performance
- Efficient Venting: 50 sq. in. Net Free Vent Area supports kitchen, bath, and attic exhaust needs
- Square-Top Design: Low-profile cap with square throat helps shed weather while venting
- Roof Pitch Compatibility: Rated for 3:12 or greater slopes for versatile installation
- Certified Performance: Meets TDI RV-38, CSA, Florida Building Code, and Miami-Dade approvals
Specifications Table:
| Specification | Details |
|---|---|
| Manufacturer Model | R50A |
| Brand | GAF MasterFlow |
| Product Number | GAFR50AMF |
| Base Material | Aluminum |
| Finish/Color | Mill Finish |
| Net Free Vent Area (NFVA) | 50 sq. in. |
| Overall Dimension | 15 in. |
| Height | 4 in. (102 mm) |
| Allowable Roof Pitch | 3:12 or greater |
| Style | Square-top with square throat |
| Category | Ventilation and Drainage |
| Applicable Standards/Approvals | Texas Department of Insurance Evaluation RV-38; CSA Certified; Florida Building Code Approved; Miami-Dade County Approved |
| Applications | Kitchen duct outlets, bathroom fan exhausts, attic exhaust ventilation |
Frequently Asked Questions (FAQ):
Q: What roof pitches can this louver be installed on?
A: It is suitable for roof slopes of 3:12 or greater.
Q: What is the net free vent area (NFVA)?
A: 50 square inches of NFVA.
Q: Is the louver approved for use in high-wind regions?
A: Yes. It has Texas Department of Insurance Evaluation RV-38, Florida Building Code approval, Miami-Dade County approval, and is CSA certified.
Q: What materials is it made from?
A: Aluminum with a mill finish for corrosion resistance.
Q: What applications is it recommended for?
A: Utility vent for kitchen duct outlets, bathroom fan exhausts, and attic exhaust ventilation.
A Sleek, Architectural Cap for Clean Rooflines
The square-top silhouette lends a crisp, modern punctuation to the roof—quietly refined yet highly functional. Its mill-finish aluminum catches light with a soft sheen, harmonizing with both contemporary and classic exteriors. Use it to streamline visible exhaust points for kitchens and baths, keeping the roofscape cohesive and uncluttered. It’s a discreet essential that elevates performance and polish in one gesture.
Upgrade your roof ventilation with this durable, code-approved aluminum louver and enjoy reliable exhaust performance with a clean, modern profile.
Original: $21.77
-70%$21.77
$6.53Product Information
Product Information
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Description
MasterFlow R50A Aluminum Roof Louver, Square-Top
Durable aluminum roof louver designed for utility and attic exhaust ventilation. The square-top, square-throat R50A provides 50 sq. in. of net free vent area and is suitable for roof pitches 3:12 or greater.
Key Features:
- Aluminum Construction: Corrosion-resistant mill finish for long-lasting rooftop performance
- Efficient Venting: 50 sq. in. Net Free Vent Area supports kitchen, bath, and attic exhaust needs
- Square-Top Design: Low-profile cap with square throat helps shed weather while venting
- Roof Pitch Compatibility: Rated for 3:12 or greater slopes for versatile installation
- Certified Performance: Meets TDI RV-38, CSA, Florida Building Code, and Miami-Dade approvals
Specifications Table:
| Specification | Details |
|---|---|
| Manufacturer Model | R50A |
| Brand | GAF MasterFlow |
| Product Number | GAFR50AMF |
| Base Material | Aluminum |
| Finish/Color | Mill Finish |
| Net Free Vent Area (NFVA) | 50 sq. in. |
| Overall Dimension | 15 in. |
| Height | 4 in. (102 mm) |
| Allowable Roof Pitch | 3:12 or greater |
| Style | Square-top with square throat |
| Category | Ventilation and Drainage |
| Applicable Standards/Approvals | Texas Department of Insurance Evaluation RV-38; CSA Certified; Florida Building Code Approved; Miami-Dade County Approved |
| Applications | Kitchen duct outlets, bathroom fan exhausts, attic exhaust ventilation |
Frequently Asked Questions (FAQ):
Q: What roof pitches can this louver be installed on?
A: It is suitable for roof slopes of 3:12 or greater.
Q: What is the net free vent area (NFVA)?
A: 50 square inches of NFVA.
Q: Is the louver approved for use in high-wind regions?
A: Yes. It has Texas Department of Insurance Evaluation RV-38, Florida Building Code approval, Miami-Dade County approval, and is CSA certified.
Q: What materials is it made from?
A: Aluminum with a mill finish for corrosion resistance.
Q: What applications is it recommended for?
A: Utility vent for kitchen duct outlets, bathroom fan exhausts, and attic exhaust ventilation.
A Sleek, Architectural Cap for Clean Rooflines
The square-top silhouette lends a crisp, modern punctuation to the roof—quietly refined yet highly functional. Its mill-finish aluminum catches light with a soft sheen, harmonizing with both contemporary and classic exteriors. Use it to streamline visible exhaust points for kitchens and baths, keeping the roofscape cohesive and uncluttered. It’s a discreet essential that elevates performance and polish in one gesture.
Upgrade your roof ventilation with this durable, code-approved aluminum louver and enjoy reliable exhaust performance with a clean, modern profile.






















