Fire-Rated, Wired Glass

45 Minutes


WireLite® is a 17/64"(6.8 mm) thick fire-rated glazing material composed of wired glass. It is listed for use in openings that do not require an impact safety rating.

"Great companies are built on great products."

-Elon Musk


  • Fire-rated for 45 minutes with required hose stream test
  • Fits in Fireframes® Designer Series frames from TGP, or standard fire-rated frames
  • Withstands thermal shock
  • May be lightly sandblasted or etched on one side without affecting fire rating
  • Available as an insulated glass unit
  • Available in Diamond Clear, 3/4" pattern (19mm) and Georgian Clear, 1/2" pattern (12.7mm)
  • Note: This product is not a barrier to radiant heat. This product does not meet test standards ASTM E119 or UL 263. If your jurisdiction requires a "barrier to heat" product, please contact TGP regarding Pilkington Pyrostop.



Thickness: Nominal 17/64" (6.8 mm) overall
Weight: 3.79 lb/ft2
Approx. Visible Transmission: 77%


Classified and labeled by Underwriters Laboratories, Inc.® and Underwriters Laboratories of Canada. File number for labeled fire-rated assemblies is UL File No. R13377. Tests performed in accordance with:

UL 9 UL 10B UL 10C
NFPA 257
LARR 25798

Standard Sizes

Rating Max. Exposed
Area (in2/ft2)
Max. Width of
Exposed Glazing (in.)
Max. Height of
Exposed Glazing (in.)
45 min. (Other than doors) 1,296/9 54 54

Sizes When Glazed With Pemko FG3000

Rating Max. Exposed
Area (in2/ft2)
Max. Width of
Exposed Glazing (in.)
Max. Height of
Exposed Glazing (in.)
45 min. (Other than doors) 4,608/32 100 100
Note: Individual lite sizes cannot exceed "Max. Exposed Area" shown above.

Surface Finish Max. Sheet Size (in.)
Diamond 58 X 100
Georgian 58 X 100

This information is intended for general reference only. For current listing details, please call Technical Glass Products.


Fireframes® Designer Series

20/45/60/90 Minute
Fire-Rated Doors and Frames

The Designer Series doors and frames incorporate precise European engineering, providing a sleek, modern alternative to traditional hollow metal frames.

Traditional Hollow Metal Steel Frames

Fire-Rated Doors and Frames

TGP glazing can be used in any approved fire-rated door and frame assemblies.

Hollow metal steel frames are supplied by others.

The time, in minutes or hours, that materials or assemblies can be expected to prevent flames and smoke from spreading.

As heat develops within the source area, pressure within the enclosed room begins to build relative to the pressure outside. Once the fire reaches equilibrium in the positive pressure zone, smoke, hot gases and flames are forced through any openings in the door or window assembly. Testing to the UL 10C standard more closely simulates real fire conditions.

Blocks radiant and conductive heat transfer from one side of the glass to the other. A required characteristic of glass used as a wall.

Classified and labeled by Underwriters Laboratories, Inc.® (UL), an independent product safety certification organization.

Immediately following a furnace test, heated glass is subjected to water from a fire hose. The cooling, impact and erosion created by the hose stream tests the integrity of the glass. In the U.S., the hose stream test is required for all fire ratings over 45 minutes (all fire ratings require it in Canada).

Available as a temperature rise door with Pilkington Pyrostop® fire-resistive-rated glass for 60-90 minute applications

Temperature rise doors provide a barrier to radiant and conductive heat transfer.

Available in stainless steel frame finish options for increased design flexibility.

Building codes clearly define hazardous locations where impact safety glass is required. Glass with this designation has been tested to meet impact safety requirements required for areas such as doors, sidelights, and areas close to the floor.

FireLite IGU is a fire-rated insulated glass ceramic unit that also complies with energy codes. It is designed for use in exterior applications where energy codes require an insulated product, or for interior applications with special needs such as sound reduction.

Withstands continuous temperatures to 1292° F for use in high efficiency heating appliances.

The ability of glass ceramic to withstand sudden heating, cooling, or both without cracking, shattering or exploding out of the frame.

The ability of the glass to stop various types of ammunition. Ratings are assigned in levels from 1 to 8, with a Level 8 rating being the highest (able to stop a 7.62mm rifle lead core full metal copper jacket, military ball).

The capacity of an element in a building structure to support a weight in addition to its own.

Listed and labeled by Intertek, an independent assurance, testing, inspection and certification organization.

Glazing designed to increase the amount of time required to gain entry. This additional time is intended to allow for the enactment of lock-down protocols and to allow for the arrival of emergency response teams. May be used in areas with high risk of prolonged attack or in critical areas such as vestibules. Forced entry resistant glazing should also resist penetration from hand-held or hand-thrown objects such as hammers, crowbars, bats, knives, bricks and rocks. (Source: NGA Glass Technical Paper FB71-21)

This product is both fire- and security-rated and is appropriate for educational facilities.

This product is smoke-rated and tested to UL 1784.

Sign up for TGP's Newsletter

Send me emails about product info, continuing education opportunities and other news from Technical Glass Products

Click here to dismiss this window.

By clicking submit, you agree to this web site’s terms of use. To unsubscribe from receiving emails from Technical Glass Products, click the Unsubscribe link at the bottom of our emails or contact Allegion at You understand and agree that your information may be transferred into the United States or other locations outside your country of residence. For more information on our privacy practices, please see our Privacy Policy.