Optimum’s 45-90 Minute Fire-Rated Fixed Windows are used in non-temperature rise applications and through various glazing options can be modified to address most fire-rated applications. Its narrow profiles providing open vision areas allows natural daylight without compromising life safety and design flexibility. The entire Fire-Rated line has been through rigorous testing. Initially, a “heat test” is performed where the window/door is exposed to temperatures up to 1600 degrees Fahrenheit. They will then endure the “Hose Stream Test”, where in which the glass holds fast even during this extreme change in temperature. Where other units of different material will react poorly when placed under these extreme conditions, Optimum’s Fire-Rated Steel Windows will hold and maintain its integrity.
FR55 Series for 60-90 Min Fire-Ratings
| AUTHORIZED DIMENSIONS | |
|---|---|
| Max. Frame Dimensions | 60″x120″ |
| Wire Glass Max. Exposed Area | 45 Min. 1,296 in2 |
| Ceramic Glass Max. Exposed Area | 45 Min. – 60 Min. 3,325 in2 |
| Ceramic Glass Max. Exposed Area | 90 Min. 2,627 in2 |
| TECHNICAL SPECIFICATIONS | |
|---|---|
| US Testing/Compliant | UL10C, UL9, NFPA 80, NFPA 257. ,ASTM E283, ASTM E331 & ASTM E330 |
| CAN Testing/Compliant | CAN/ULC-12349 |
| Custom Colors | Available |
| Fabrication | Mitered, corner keyed frame and sash joinery |
| Certification | Underwriters Laboratories |
| Fabricated in the US | Yes |
| Glazing Options | 45 Min Rating w/ Wire; 60-90 Min Rating w/ Ceramic Glass |
| Weight (lbs/linear ft.) | 2.02 lbs/linear ft Exterior Frame; 2.22 lbs/linear ft w/ Optional Flange |
| Approval For NYC | MEA# 151-91-M |
On September 21st-22nd, our team will be virtually attending this event and we can't wait to show you what's new! Stay tuned for more details on how to visit our virtual booth.
(Hot-Rolled Steel)
(Operable Windows)
