What does fire need to sustain itself?
Fire needs multiple factors for ideal conditions but can generally start and sustain itself on three basic elements; Heat, Oxygen and Fuel. When we say heat you may think of how objects can catch fire a specific temperatures but for a fire a simple spark would suffice. Oxygen is pretty self-explanatory, all fire needs oxygen to sustain flame and heat via oxidization. Last of all fuel, now this doesn’t have to be petrol or gasoline, it can be anything that will catch fire like wood, certain plastics, paper, dry shrubbery or an incendiary chemical. See what we mean when we say fire can happen almost anywhere? It could all start with an overheated computer on a wooden desk…
What makes a Glazed Fire Door fire-proof?
Fire doors are glazed with a material that has high melting points and are fire resistant. This glazing material may range from a small panel in a door to a glazed screen for maximum light transmission and safety. Under regular circumstances glass cracks when exposed to heat and is liable to fall out fairly early in a fire, causing an increase in risk for hazards like cuts and lacerations as well as those from the fire, where-as a fire rated door’s “glass” will remain intact for longer. This helps to confine the fire to one room or area, preventing the spread, aiding evacuation and reducing the amount of potential damage.