Fire Rated Door Basics

Looking at a buildings fire and safety infrastructure, the fire rated door is one of the most important components. One of these doors has a fire resistance rating and serves the principle of containing the spread of fire. It will also contain the spread of heat and smoke between areas inside a building. In addition, a fire resistant door also aids in the evacuation of people in a quick, safe and effective method. As such, safety is always the highest priority and Brisbane Fire Doors understands exactly how crucial safety is.

In a nut shell, a fire door is installed where an entry is needed through a fire rated wall. A fire rated wall is normally concrete, block, brick or fire rated partitioning and are used to section off a building into smaller areas. For example, they can be the walls separating unit dwellings in a residential complex, the wall between commercial factories, and the walls leading into areas such as fire stairs. As the name may suggest, a fire rated door is constructed using fire resistant material. Based on the type of door, it can be resistant anywhere from 1 hour to 4 hours. In addition, a fire resistant door has a compliance tag fitted and a fire rated door frame which is normally made of steel. A compliance tag is usually fixed to the hinge side of the door and tells us the fire rating of that door, who made it, and who installed and certified it. The fire door frame must also be fire rated and also have a compliance tag.

Most of the time, fire doors are installed in the emergency exit path of a building. A fire proof door will always open in the same direction as the flow of people exiting or leaving a building. Put simply, people are pushing the door open and away from them, rather than pulling it toward them. It is common sense that this ensures a safer, easier and more natural movement in an emergency situation such as a fire.

A compliant fire resistant door must have a fire rated door closer installed to allow the door to close and self latch on its own in order to contain a hazardous fire. Also, there are very tight margins/gaps between the door, the door frame and the floor. These are all extremely important ingredients of the whole fire rated door set.

Finally, there is the door hardware. Hardware is the term given to the locks and door handles. To be compliant, all hardware fitted to a fire resistant door must also be fire rated. Fire rated hardware makes sure the integrity of the door won’t be compromised in the event of a fire. Interestingly enough, one of the main reasons for a fire door to fail an inspection is due to non-fire rated hardware being fitted.

What we have here is a basic overview of a fire door. Hopefully it has provided some good insight into the use of a fire proof door when installed in particular environments, their purpose and what they actually do. Of course, we have only covered the basics, so if you have a specific question, or would simply like some more information, please give Brisbane Fire Doors a call and ask away, our friendly staff will be more than happy to help.

Diane Pedersen

About Diane Pedersen

60 plus years of combined experience in the Fire Door industry simply treating our customers the way we want to be treated ourselves Google+
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