Does your design have to compromise if fire-rated glass is required?>
Can fire-rated glass also be impact rated and bullet resistant?>
Why Is fire-rated glass expensive?>
Fire-rated glass is separated into two categories: fire-resistive and fire-protective. Fire-resistive glass often uses intumescent interlayers that foam and swell when exposed to heat. This type of fire-rated glass is unusable after a fire.
There are many types of fire-protective glass on the market—all with their own capabilities and limitations. When specifying fire-protective glass, building professionals are encouraged to discuss these details with its manufacturer or distributor and to consult with the local Authority Having Jurisdiction (AHJ) to determine best practices for this material after a fire event.
After installation, fire-rated glass is maintained similarly to non-rated glazing. This means regular cleaning and upkeep. Additionally, fire-rated glass should be inspected as described in relevant building and fire codes—often annually.
If damage occurs to any part of a fire-rated glass system, including frames or fire-rated door hardware, facility managers are encouraged to contact the system’s manufacturer to determine their best course of action. Not doing so risks compromising the system’s fire rating.
Often, replacing fire-rated glass after a fire is more complicated than simply swapping out one lite of glass for another with an equal rating. Usually, the full system, including framing and, if applicable, hardware, will need to be replaced.
When replacing fire-rated glazing, it is a best practice for specifiers to select the fire-rated glass systems, which includes glass, frames and all hardware, that best meet the current code requirements for a given project. After the system has been selected, experienced glazing contractors can install it per the manufacturer’s instructions.
