Fire Doors Explained – A Beginner’s Guide

new fire door regulations 2020 fire door specification how to identify a fire door what are fire doors types of fire doors fd30 fire door specification what are fire doors made of Sigmadoors

Fire Doors – Definition, Specs and Tips

A fire door plays a great role in ensuring the safety of a building against fire breakout. Their construction and installation are such that smoke and fire cannot easily pass through them. So, they serve as the right security for any building like residential homes, offices, hospitals, or any other commercial building.

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Keep reading to learn fire door requirements, the composite of fire doors, and more.

What are Fire Doors?

Fire doors are specially certified doors that help to limit fire spreads within a building during cases of fire outbreaks. They ensure that both smoke and fire are kept off for 30 minutes. This helps in promoting the safety of the building occupants by creating opportunities for exiting the building and easy entrance of firefighters.

Usually, the design of a fire door is such that it could bay the spread of smoke and fire flames from one place to another within a building. A fire-resistant rating marked on a fire door distinguishes it from regular doors.

What kind of doors are fire-rated?

new fire door regulations 2020 fire door specification how to identify a fire door SigmadoorsFire-rated doors are doors with the capacity and certification to withstand fire flames. The FD (Fire Delay) ratings are different and depend on the period that the doors could bay off the fire. For instance, FD30 and FD60 are some of the fire ratings for some doors. While the former rated are for fire doors that could withstand fire for at least 30 minutes, the latter is for the ones that could withstand fire for a minimum of 60 minutes. So, fire doors are rated based on their period of protection against fire.

Here are the common fire ratings for fire doors.

  • FD120 – Provides safety for a minimum of 120 minutes.
  • FD90 – Provides safety for a minimum of 90 minutes.
  • FD60 – Provides safety for a minimum of 60 minutes.
  • FD30 – Provides safety for a minimum of 30 minutes.

Among all the FD ratings, fire doors with FD30 are the most popular and widely used type. They have a great recommendation from fire safety standards, are less expensive, and offer high protection level when installed severally in a sequence through a building route. So, they could slow the spreading of fire by consecutively adding 30 minutes to their safety period within the building. Such an arrangement is known as compartmentalization.

What is a fire door requirement?

new fire door regulations 2020 fire door specification how to identify a fire door what are fire doors SigmadoorsBased on the regulations within a specific jurisdiction, houses should have compartments that would include protective exit paths with fire doors. The requirement may differ for residential and commercial buildings.

  • Residential buildings – They could contain at least two levels with fire doors at the stairwell that proceed to a safe room. 
  • Combination of residential and commercial buildings – There should be fire doors between the areas of residential and commercial parts.
  • Commercial buildings – These could have escape routes as either vertical or horizontal. Vertical evacuation is applicable for buildings for several levels and flights of stairs. There should be fire doors for the several routes of escape of occupants.

For horizontal evacuation, people would horizontally move toward a fireproof area which should also have fire doors for protection.

What is inside a fire door?

You may be wondering what is inside a fire door that enhances its protection against fire. The safety properties of fire doors serve as their identification. 

Some of the indemnification factors for fire doors include the following:

  • Their design is in line with the right specified protection standards.
  • Fire-resistant features.
  • Smoke sealing properties.
  • Has a very small space between the door and walls.
  • Automatic closing system.
  • A sign that reads “Fire Door Keep Shut.”

Can a fire-rated door be wood?

The core of wooden fire doors is mainly designed using materials like timber, particleboard, magboard, or flax board. They are usually lipped with a veneer finish and MDF, or plywood bonded to the core. Most importantly, the painting of wood fire doors is with fire retardant paints. This helps in reducing the tendency of the door burning during fire outbreaks.

More Resources: Louvre Doors | Crealco | Aluminium Stable Doors | Shopfronts & Curtain Walls | Window Shutters | Green Building Council South Africa | Security Gates | Glass Balustrades | Double Garage Doors Aluminium Windows and Door Manufacturer

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