Sentinel, Aluminum Casement Window

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Aluminum Casement Hurricane Impact Window
Series 238SN

CGI’s Sentinel impact resistant casement windows have very clean lines and incredible eye appeal with the advantage of quality aluminum construction.

CGI’s impact resistant 238 series of casements, and project-out windows have matching sight lines which allows them to be used interchangeably throughout your home.

Sentinel 238 Casement Installation Instructions


Available Finishes

Standard Glass Colors

Glass Type

Glass Coating

Standard Hardware

  • Single stainless steel arm roto operator and nesting crank handle
  • Stainless steel operator track
  • Pair of stainless steel four bar concealed hinges
  • Pair of locks (one lock on window under 30” high)
  • Pair of stainless steel keepers for above locks
  • Snubber blocks
  • Small operator on units less than 24” wide,
  • Large operator on units 24” wide or more

Standard Features

  • Extruded screen frame with Super-View™ mesh
  • Extruded snap-on square glazing beads
  • Stainless steel assembly screws and corner keys
  • Double weatherstripping
  • 1/2” Exterior flange frame
  • 2” Deep frame

Optional Items

  • Connecting lock bar for egress windows
  • Custodial type locks (for institutional use)
  • Limit Opening Devices
  • Hinges with washability feature (for high-rise use)
  • Equal leg frame
  • Muntin bars

 (Some of the optional items, particularly the muntin bars, are very detail-oriented and cannot be handled appropriately through a web store. Because of this, any options you might want should be discussed with your personal window consultant who will contact you at the time and date you specify in the order form. We want to make this perfect for you, and sometimes there just is no substitute for a human voice.)


Maximum Water Resistance      

16.5 PSF


Large Missile       

20” x 36” window (Ann/Ann Glass)

+110/-194.3 PSF


37” x 63” window (Ann/Ann Glass)

+/-60 PSF

Forced Entry Test (ASTM 1302.5)



Meets clear opening egress requirements at 5.7 sq. ft.



Energy Values
(NFRC Approved)

Insulated laminated: ¾” Clear LoE 366

U Factor