Casement / Awning Window BI-45 (Interior Opening)

Combining elegance and perfectly proportioned lines, Altek casement awning windows offer today’s technology in a timeless design. The Bi-45 aluminum series includes a contemporary inward opening casement and awning that can be combined with contemporary fixed units. Perfect for multifamily buildings.

Characteristics & Benefits

The BI-45 all alluminum windows come with the following features:

  • 5 1⁄2” extruded aluminum tubular frame
  • Contemporary sash
  • Concealed drainage system acts as a rain screen
  • Triple weatherstripping for maximum air tightness
  • Multiple air chambers
  • Stainless-steel hinges
  • Gray multipoint locking handle with a minimum of two locking points
  • Aluminum screen frame

Optional Features

  • 2 5⁄8”, 1 7⁄8”, or 7⁄8” exterior frame extender
  • 1 1⁄16” brickmould
  • 5”, 4 1⁄4”, 3 1⁄4”, or 2 1⁄4” sill flashing
  • Eyelet handles (2 per sash) and spring latches (2 per sash)
  • Double or triple glazing options

Available as Awning

Similar to casement windows, awning windows can be opened even on rainy days.


    Harmonized North American Fenestration Standard AAMA/WDMA/CSA 101/1.S.2/A440-05 CLASS R-PG65-AP 1200x1020MM

    Energy Rating*

    Single sliding

    Dual Glaze


    Single sliding

    Triple Glaze


    *Ratings based on Cardinal 180 glass with no grills

    Aluminum Standard Colours

    Here are our exterior aluminum standard colours. Inside standard colour is white. Custom colours also available. The colours shown may differ from actual colours and should only be used for project purposes.

    Commercial Brown



    FREE Quote

    We offer a FREE no obligation quote where one of our sales associates will go to your home, and measure your windows, door, patio door, siding, and discuss various options and installation services.