SKU: 37317973806

GAF MasterFlow Square-Top Aluminum Roof Louver R50A, 15 in., Mill Finish, 50 Sq. In. NFVA

Sale price$19.59 Regular price$21.77
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Description

GAF MasterFlow Square-Top Aluminum Roof Louver R50A, 15 in., Mill Finish, 50 Sq. In. NFVAMasterFlow 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

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37317973806

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Lynn
Omaha, US
★★★★★ 5
Great Quality
Color: 12x6-3P-Black
Pretty impressed with the quality of these! Exactly what I needed to store snack in my pantry.
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Reviewed in the United States on February 20, 2026
C
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Cathy DeMarco
Lowell, US
★★★★★ 5
Great organizers!
Color: 12x6-3P-Black
These baskets are very useful. Junk drawers can be areal mess but we use these to bring some order. They are just the right height for the shallow kitchen cabinets.
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Reviewed in the United States on September 27, 2025
E
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EW
Louisville, US
★★★★★ 5
The baskets work
Color: 12x6-3P-Black
Fits the desk well, sturdy, holds more than I thought
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Reviewed in the United States on March 13, 2026
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LuLu Travis
Louisville, US
★★★★★ 4
Great Organization Product - But Still Slips Backwards with Open/Closing Drawers
Color: 12x6-3P-Black
I love that these help with organization, but - despite the pads on the bottom - they still scoot back when the drawer is open and closed.
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Reviewed in the United States on January 29, 2026
K
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kevin stevens
Cuba, US
★★★★★ 5
Perfect in the office.
Color: 12x6-3P-Black
Perfect!
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Reviewed in the United States on May 25, 2026

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