Image of SI-445
UL 521 Listed
Basis of Design
Multifamily Ready
Fast Lead Times

Louvers /Formed Metal /2" and 4" Combination

SI-445

Galvannealed Steel Louver

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Common Applications

  • Wood Truss Assemblies
  • Multifamily
  • Light Commercial

Resources

Product Sheets

  • PDF SI-445 Product Sheet

Accessories

  • PDF Louver Maintenance

Louver Options

  • PDF Blank-Off Option
  • PDF Filter Rack
  • PDF Hinge Option
  • PDF Bird Screen

Overview

The SI-445 combination louver features stationary louver blades and an integral gravity operated backdraft damper to protect intake air openings in exterior walls. The SI-445 is available in a wide array of painted finishes including custom color matching.

Standard Construction

Material: Galvannealed steel.
Frames: 4" deep x 20 ga. thick (102 x 1) channel.
Blades: 45o x 20 ga. (1) thick J style BD intake.
Screen: 1/2" x 0.063" (12.7 x 1.6) expanded and flattened aluminum.
Mullion: Visible.
Minimum Size: 12" x 12" (305 x 305)
Maximum Size: Single Section: 36" x 96" (9144 x 2438)
                           Multiple Section: Unlimited

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