Fire Rated Glass (also known as Fire-resistant glass) is special glass that has been proven to provide a period protection against fire during a fire resistant test. The degree of protection offered depends on the type of fire rated glass used but generally speaking all fire rated glass acts as a barrier to help prevent the spread of flames and smoke in the event of a fire. Certain types of fire rated glass will also provide a degree of protection (insulation) against the heat of a fire. The use of fire rated glass is therefore an important component in building safety and building regulations specify where it must be used. 

Fire Resistance Tests are carried out by independent test companies and comply with all relevant Fire Test Standards. All fire rated glass should be installed as per the test evidence in terms of the Fire Resistant Glazing System used during the test (including sizing, frame and installation materials); only then will it provide the protection as per its official Fire Protection Rating. If the glass is installed into a different frame or installed with different materials (for example a different seal) then this will negate the protection and fire rating of the product; having access to the relevant Test Evidence when purchasing fire rated glass is therefore fundamental.