Product Testing

Glass and framing must undergo extensive testing in an independent laboratory before receiving a fire-rating. View brief video clips of the tests below.

Testing Results

Fire Test

To earn a fire rating, glass must pass rigorous tests conducted by an independent laboratory. Glass, framing and door components are heated in a furnace to simulate the high temperatures of a building fire. The lab assigns the products a fire rating of 20 minutes to 3 hours, depending on how long they resist breakage. Technical Glass Product's FireLite® glass ceramic, Pilkington Pyrostop® transparent wall panels and other fire-rated products are UL-listed and are suitable for blocking the spread of flames and smoke.

Hose Stream Test

The hose stream test is the second part of the testing requirements for fire-rated glass. It is required in the U.S. for all fire ratings over 45 minutes, and in Canada for all fire ratings. Immediately following heating in a furnace, hot glass is sprayed with water from a fire hose at specified pressures. The cooling, impact and erosion created by the hose stream tests the integrity of the glass and eliminates inadequate materials. Products from Technical Glass Products with fire ratings greater than 20 minutes such as FireLite® and Pilkington Pyrostop® have all passed the hose stream test.

Impact Test

Where intended for use in doors, sidelites, walls or other areas where people or objects may run into it, fire-rated glazing is subjected to an impact test. The test determines the amount of force it can resist by dropping a bag of lead shot against a vertical piece of glass from various heights. Technical Glass Products offers several fire-rated and impact safety-rated products, including FireLite Plus® and FireLite® NT glass ceramic and Pilkington Pyrostop® transparent wall panels.


These fire testing videos are the property of Technical Glass Products and are protected by the copyright and trademark laws of the United States and other countries. Although you are permitted to access the videos through our web site, you must obtain authorization of Technical Glass Products before using them for any purpose other than viewing on the web.

Fire Test

Hose Stream Test

Impact Test