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45/60/120 Minute Silicone Glazed Fire-Rated Steel Curtainwall

Fireframes SG Curtainwall® Series allows design professionals to create large, fire-rated glazed walls with the smooth, monolithic appearance of a structural silicone glazed system. Fabricated in the United States, this system features a patented toggle retention system that allows for rapid installation and clean sightlines.



  • Fire ratings of 45, 60 and 120 minutes
  • 60 and 120 minute ratings allow unrestricted glazing area for use in locations where total glazing exceeds 25% of wall
  • Full-lite doors available in single leaf or double leaf design (see Fireframes® Designer Series or Fireframes® Heat Barrier Series)
  • Air and water pressure tested and approved for exterior use
  • Durable steel frames ensure low maintenance system
  • Narrow steel profiles
  • Silicone sealed for smooth monolithic appearance, no pressure plates or caps
  • Shear block fabrication system
  • Easy installation using unique toggle retention system, patent no. 8,567,142
  • Frames supplied "K-D" (knock-down)
  • Finish painted at the factory to match desired color scheme
  • Available in 2-sided and 4-sided systems; 2-sided systems have snap-on covers to conceal pressure plate screws
  • Fabricated in the U.S.A.


Classfied and labeled by Underwriters Laboratories, Inc.® as Design Number U554 and Underwriters Laboratories of Canada as Design Number W495. Frame tests performed in accordance with UL 263 / ASTM E-119 (60-120 minutes), NFPA 251.

Max size

Maximum Allowable Size Information

Rating Max. Exposed Glass Area Per Piece Max. Exposed Glass Single Dimension Maximum Frame Dimension
45 Minutes 31.25 sq. ft. (4,500 sq. in.) 95 1/4" 144"*
60 Minutes 31.25 sq. ft. (4,500 sq. in.) 95 1/4" n/a**
120 Minutes 24.0 sq. ft. (3,456 sq. in.) 96" n/a**

Note: Exposed area and size limitations are calculated from the frame side as DLO.
* 45-minute window systems are classified as an Opening Protective as per UL 9.
** 60- and 120-minute tests conducted per UL 263 / ASTM E-119. Therefore assembly is
classified as a wall assembly, and not subject to "opening" area limitations.

CAD Details/BIM Models

To obtain CAD files of any of these detail drawings, please use our CAD request form.

To obtain BIM Models for this product, please use our BIM Model request form.


Download a PDF of our Care & Warranty Brochure.