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

Stationary Straight Blade

Stationary Straight Blade Louvers

Our straight blade louver design provides air intake in exterior walls at a reduced cost. This economical model is perfect for exterior aesthetics or for buildings where water entry is less critical.

  • Description
  • Model Guide
  • Sizes and Weights
  • Documents

Standard Design Specifications

Louver Shapes Square, Round, Gable
Frame 0.063″/0.080″ 5052 H32 aluminum
18 GA galvanized steel
Blades 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
Warranty 1 year

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-FG-4004-MB is a formed galvanized steel 4″ deep stationary straight blade louver with metal building flanges

Model FA-2004 FG-2004 FA-4004 FG-4004 FA-6004 FG-6004
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 4 lbs/sf 6 lbs/sf 6 lbs/sf 7 lbs/sf


Formed Stationary Straight Blade Louvers

Product Description Model Submittal Specifications Installation Warranty
2″ Deep Aluminum FA-2004 PDF PDF
2″ Deep Galvanized FG-2004 PDF PDF
4″ Deep Aluminum FA-4004 PDF PDF
4″ Deep Galvanized FG-4004 PDF PDF
6″ Deep Aluminum FA-6004 PDF PDF
6″ Deep Galvanized FG-6004 PDF PDF

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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?