Glass Fire Doors Regulations

Depending on the type of glass the glazed panel will also act as an insulator protecting the rest of the site against the heat of the fire.
Glass fire doors regulations. For 20 and 45 minute doors fire protective glazing can be used up to the maximum size tested. Glass in swinging doors shall conform to the provisions of section 3242. Mechanical electrical or electronic system acceptable to the division and approved for the purpose by the state fire marshal. The glass in fire rated doors will act as a barrier against flames stopping their spread and will also stop smoke from spreading throughout the rest of the building.
Glass windows are allowed but keep in mind they cannot be used in combination with louvers. Walls and floors and are evaluated by the same stringent procedures and criteria. All fire rated doors that contain glass panels must use fire rated glass. Doors with a 45 minute rating can have up to 1 296 square inches of glass.
When the door rating exceeds 45 minutes temperature rise requirements typically apply. These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. This includes specialty tempered glass filmed or laminated ceramics or filmed wired glass. Doors with 90 minute rating can have up to 100 square inches of glass.
Three hour fire doors may not have glass windows. According to bs 8214 2008 code of practice for fire door assemblies fire doors need to provide a similar level of fire resistance as the fixed elements of a building i e.