Manufacturer and supplier of roof products and accessories for the metal building industry since 1964

Stationary Drainable Blade

Stationary Drainable Blade Louvers

Our drainable blade louver design provides safe air intake in exterior walls while minimizing water intrusion. Each blade includes a formed drain gutter to channel water to adjacent jambs and drain from louver sill. R&S 4″ Louvers are AMCA certified.

  • Description
  • Model Guide
  • Sizes and Weights
  • Documents
  • Certification

Standard Design Specifications

Louver Shapes Square, Round, Gable
  • 0.063″/0.080″ 5052 H32 aluminum
  • 18 GA galvanized steel
  • 0.063″/0.080″ 5052 H32 aluminum
  • 18 GA galvanized steel
Fasteners Visible pop-rivets mount blades to frame
Screen 1/2″ mesh 0.063″ aluminum or 1/2″ mesh 19 GA galvanized steel
Finish Aluminum Mill, Steel Galvanized, Powder Coat or Kynar
Certifications 4″ Models AMCA Certified*
Warranty 1 year


4″ Deep Models AMCA Certified (FA-40337 & FG-40337)

  • 4″ deep models published performance ratings based on AMCA 511 standard
  • 4″ deep models licensed to bear the AMCA seal for air and water performance

Louver Options

Frame Options
Metal Building Flanges MB: Include head drip lip and offset perimeter flange to flash into a metal wall panel. Specify wall panel make and model for proper sizing
Channel Frame C: Standard for use in framed or masonry openings
Front Flange Frame F: Flange Frame option includes a full perimeter flange flush with the louver face
Louver Finish
Standard Aluminum mill or galvanized steel
Powder Coat Baked polyester standard colors (most economical) and custom color matching
Kynar Multiple thicknesses available depending on specification
Other Options
Fully Welded Construction High wind loads may call for reinforced construction. Louvers may be fabricated by welding all major seams to provide an ultra-rigid design
Insect Screen Louvers shipped standard with bird screen but may be fitted with mesh insect screen
Filter Racks Integrated filter rack system with disposable or washable filters
Blank-Off Panels Aluminum construction, insulated or non-insulated. Pan-in-pan design.

Louver Model Guide

Model Blade Type Construction Frame Depth Blade Design Blade Degree Special Features
  • A: Adjustable Blade
  • F: Stationary Blade
  • A: Aluminum
  • G: Galvanized Steel
  • S: Stainless Steel
  • 20 = 2″
  • 40 = 4″
  • 60 = 6″
  • 0 = Straight
  • 3 = Drainable
  • 5 = Stormproof
  • 7 = Inverted V
  • 3 = 30
  • 37 = 37.5
  • 4 = 45
  • 6 = 60
  • MB = Metal Building Flanges
  • C = Channel Frame
  • F = Flange Frame
  • M = Motorized


LVR-FA-40337-C is a formed aluminum 4″ deep stationary drainable blade louver with a channel frame

Standard Sizes and Shipping Weights

Model FA-2034 FG-2034 FA-40337 FG-40337 FA-60337 FG-60337
Blade Depth 2″ 2″ 4″ 4″ 6″ 6″
Material 0.080 Aluminum 18 GA Steel 0.080 Aluminum 18 GA Steel 0.080 Aluminum 18 GA Steel
Minimum Size per Panel 12″x12″ 12″x12″ 12″x12″ 12″x12″ 12″x12″ 12″x12″
Maximum Size per Panel 96″x96″ 96″x96″ 96″x96″ 96″x96″ 96″x96″ 96″x96″
Ship Weight per Square Foot 2 lbs/sf 4 lbs/sf 3 lbs/sf 5 lbs/sf 6 lbs/sf 7 lbs/sf


Formed Stationary Drainable Blade Louvers

Product Description Model Submittal Specifications Installation Warranty
2″ Deep Aluminum FA-2034 PDF  PDF
2″ Deep Galvanized FG-2034 PDF  PDF
4″ Deep Aluminum FA-40337 PDF WORD  PDF
4″ Deep Galvanized FG-40337 PDF WORD  PDF
6″ Deep Aluminum FA-60337 PDF  PDF
6″ Deep Galvanized FG-60337 PDF  PDF

Air Movement and Control Association (AMCA)

R&S 4″ Deep Drainable Blade Louver Models have been tested and are certified to ensure high free area, low water entry and air resistance

Applicable to 4″ deep Galvanized or Aluminum Formed Drainable Blade Louvers

View AMCA Certifications

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R&S manufactures a vast array of products to fit your project needs. We aim to supply all of your metal building roof accessory needs, not just one product. Why go to multiple vendors when R&S can supply it all?