Fire rated glass, or fire resistant glass, is a range of specialist glass products that have been manufactured specifically to provide protection against fire. Each product has been extensively tested and proven to provide various types of protection. Fire resistant glass can act as a barrier, helping to hold back and prevent the spread of smoke and flames through buildings. This type of protection is referred to as ‘integrity’. Some types of fire resistant glass can also provide protection against the heat of the fire This type of protection is referred to as ‘insulation’.
Fire resistant glass is rated based on it’s capabilities and can be broken down into 3 categories; Integrity, Insulation, or Integrity and Insulation. After extensive testing, fire resistant glass types are given an official rating based on the time period they will perform for from 30 minutes upwards. So for example, ‘Integrity 30’ would be a fire resistant glass that prevents the spread of flames and smoke for at least 30 minutes. ‘Integrity and Insulation 60/30’ would be a glass that holds back flames and smoke for 60 minutes and protects against the heat of a fire for at least 30 minutes.
An independent company carries out testing on fire resistant glass in a controlled environment. Fire resistant glazing is installed within a test furnace and set alight to simulate a real life fire scenario. The glass surface temperature is monitored and recorded so that each glass product can be allocated a rating based on its performance. Fire resistant glass testing can reach temperatures in excess of 900 degrees Celsius. As a comparison, standard glass found in the majority of windows would only withstand 120 degrees, equating to just a few minutes protection in a real life fire.
No. Each type of fire resistant glass is tested using a specific glazing system, so it is important that fire rated glass is glazed to the specified method on the certificate. This includes the glass, the glazing seals, beads, fixings and frame. For more information or advice, please contact the office.
No. There are many different types of glass that have fire resistant properties, and to comply with building regulations you will need to use a fire resistant glass that achieves the correct rating for the application. Fire resistant glass can vary greatly in cost, so it’s important to establish which glass will comply with regulations and be the most cost effective.
We ask 5 simple questions that help to find the right specification glass:
Is it internal or external glazing?
Is it for glazing a door or a screen?
Is the frame timber or steel?
Do you require clear or wired glass?
What rating is required?