FD30 Fire Door, What Does It Mean For Your Business?

Sep 5, 2022

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An FD30 fire door is one of the most important fire safety measures in any commercial premises. Why? Fire doors provide protection against fire and heat transmission.

Fire doors prevent fires from spreading throughout a property. This provides enough time for any occupants to escape the building. An FD30 fire door is a standard fire door required by building regulations.

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What Is A Fire Door?

A fire door is a specialised door which is used as part of a passive fire protection system to reduce the spread of fire and smoke between compartments.

Fire doors are installed at entrances to buildings, exits and lobbies, which require extra resistance to smoke, heat and flames compared with that offered by general purpose doors. In the case of an emergency evacuation, they allow people to leave more quickly without becoming disoriented or having their escape route blocked by smoke or flames.

Fire doors are important in the prevention of fire and minimising damage to your property.

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What Does FD30 Fire Door Rating Mean?

FD30 is a term used in the United Kingdom to describe a type of fire door. Specifically, it refers to a door that has been tested and certified to resist fire for a minimum of 30 minutes. Additionally, if your fire door has been tested to ‘S’ standard, for example, FD30S, then this will also provide smoke protection.

Fire doors are an important safety feature in buildings, particularly in commercial and public buildings, as they can help to contain or slow down the spread of fire and smoke, giving people more time to evacuate the building safely.

In addition to being tested and certified to resist fire for a certain amount of time, fire doors must also meet other requirements, such as having a suitable frame and hardware, and being installed correctly. It’s important to ensure that fire doors are installed and maintained properly to ensure their effectiveness in the event of a fire.

Prevention of the spread of smoke is done through the use of smoke brushes, as well as intumescent strips. 

Do I Need FD30 Or FD60 Fire Doors?

The specific fire door rating you need will depend on various factors, including building regulations, the type of building, and the use of the building. In general, an FD30 fire door is rated to provide 30 minutes of fire protection, while FD60 fire doors are rated to provide 60 minutes of fire protection.

If you are unsure which type of fire door you need, you should consult with a qualified professional such as a fire safety engineer or a building inspector. They will be able to advise you on the appropriate fire safety measures for your specific building and its intended use.

It’s important to ensure that any fire doors you install meet the necessary safety standards and are installed correctly to ensure their effectiveness in the event of a fire.

Generally, depending on the size of your building and the number of occupants, it may be more suitable to have an FD30 fire door rather than an FD60.

If your building has hundreds of people then you may want to allow for more evacuation time. You can do this by installing an FD60 fire door. FD60 will provide 60 minutes of evacuation time against flames. However, if your building has 20 or 30 people then an FD30 fire door should be more than sufficient and it may save you some money.

choosing fd30 or fd60

How To Tell If A Door Is FD30

FD30 refers to a fire door that is designed to provide fire resistance for 30 minutes. To tell if a door is FD30, you can follow these steps:

Typically you would look for a label or certification mark. An FD30 fire door is usually labelled or certified to indicate its fire resistance rating. Look for a label or certification mark on the door, which may include the words “Fire Door” or “FD30 Fire Door.”

If you’re still unsure whether the door is FD30, you can contact the manufacturer or supplier for more information.

Why Do Businesses Need Fire Doors?

Fire doors are an important safety feature for businesses because they can help prevent the spread of fire and smoke in the event of a fire. Fire doors are designed to withstand high temperatures and block flames, heat, and smoke from spreading from one area of a building to another, creating a barrier between the fire and the occupants of the building.

Here are some reasons why businesses need fire doors:

  • Legal requirements: Depending on the jurisdiction, businesses may be required to install fire doors as part of their building code compliance. Failure to comply with fire safety regulations can result in fines, legal action, or even the closure of a business. Fire doors are a legal requirement in all UK non-domestic properties. This includes businesses, commercial premises and public buildings. Fire doors meet legal requirements and must be fitted when constructing a new building or renovating existing premises.

  • Protect occupants: Fire doors provide a safe exit route for occupants in the event of a fire, helping to prevent injuries and fatalities. They can also help contain the fire, giving people more time to evacuate the building and reducing the risk of smoke inhalation.

  • Property protection: Fire doors can help protect a business’s property by preventing the spread of fire to other parts of the building. This can reduce the risk of significant property damage and potential loss of business assets.

  • Insurance requirements: Many insurance companies require businesses to have fire doors installed to reduce the risk of fire damage. Failure to comply with insurance requirements can result in increased premiums or denial of coverage.

If you’re a business owner, it’s important to remember that fire doors are not just for protecting your workplace from fire. They also offer many other benefits that can have a positive impact on your bottom line. By installing fire doors in your building or workspace, you’ll be able to save money by reducing insurance premiums as well as protect against potential fines and legal action if an incident occurs without them being present.

Overall, fire doors are an essential safety feature for businesses to protect their occupants, property, and comply with legal and insurance requirements.

What Are Intumescent Seals?

An intumescent seal is a type of fire seal that expands when exposed to high temperatures, such as those caused by a fire. It is designed to fill the gaps of a fire door and prevent the spread of fire, smoke, and toxic gases through openings in walls, floors, and ceilings.

How Do Intumescent Seals Work?

Intumescent seals are designed to help prevent the spread of fire through gaps and joints in buildings. They work by expanding when exposed to high temperatures, such as those caused by a fire, which helps to fill gaps and seal openings, slowing down the spread of smoke and flames.

The expansion of the intumescent seal occurs through a chemical reaction in the material. Typically, intumescent seals are made from a combination of materials that can include graphite, vermiculite, sodium silicate, and other compounds. When heated, the material undergoes a process called “pyrolysis,” which causes it to decompose and release gases that cause the material to expand rapidly.

The expansion of the intumescent seal can create pressure that helps to seal gaps and joints, preventing the spread of fire and smoke. The exact mechanism of expansion depends on the specific type of intumescent seal and the materials it contains.

Intumescent seals are commonly used in buildings, particularly in fire-rated doors, walls, and ceilings, to help contain fires and protect people and property. They are an effective and relatively inexpensive way to improve fire safety in buildings.

How To Fit An Intumescent Fire Door Seal

Fitting an intumescent fire door seal is an important step in ensuring that a fire door is able to provide effective fire protection. Here are the steps to follow:

  • Choose the right intumescent seal
  • Measure the fire door
  • Clean the area
  • Apply adhesive
  • Fit the intumescent seal
  • Trim the seal
  • Test the fire door

It is important to follow the manufacturer’s instructions when fitting an intumescent fire door seal. If in doubt, seek professional advice or assistance from a qualified installer.

The 7 Steps To Fitting an Intumescent Seal:

1) The first step is to choose the right intumescent fire door seal that is suitable for the door and frame. There are different types of seals available, such as brush, strip, or foam seals. Choose the right one based on the type of door and the level of fire resistance required.

2) Measure the width and height of the door and the depth of the rebate where the seal will be fitted. Use these measurements to cut the seal to the correct size.

3) Clean the area around the rebate where the seal will be fitted. Ensure that it is free from dust, debris, or any other obstructions.

4) Apply adhesive to the back of the seal and also to the rebate where the seal will be fitted. Use an adhesive that is suitable for the material of the seal and the door.

5) Press the seal firmly into the rebate, ensuring that it is evenly positioned and flush with the door. If necessary, use a mallet to gently tap the seal into place.

6) Use a sharp knife to trim any excess seal that protrudes from the rebate. Be careful not to damage the seal or the door.

7) Once the seal is fitted, test the door to ensure that it closes properly and that there are no gaps between the door and the frame. Check that the seal expands when exposed to heat.

How Long Does A Fire Door Last?

The lifespan of a fire door can vary depending on various factors such as the quality of the door, the frequency of use, and the maintenance schedule. In general, fire doors can last anywhere from 10 to 30 years, but it’s important to note that this is just an estimate and not a guarantee.

Factors such as the level of usage and exposure to environmental factors can also affect the lifespan of a fire door. Regular inspections and maintenance are crucial to ensure that the door is functioning properly and will provide the necessary protection in the event of a fire.

It’s also important to note that fire doors should be replaced if they are damaged or have failed an inspection. If you are unsure about the condition of your fire door, you should consult with a qualified professional for an evaluation.


In conclusion, the FD30 fire door and intumescent seals are essential components of fire safety in buildings. An FD30 fire door has been designed and tested to withstand fire for up to 30 minutes, providing crucial time for people to evacuate and for firefighters to arrive and extinguish the fire. Meanwhile, intumescent seals are crucial in preventing the spread of fire, smoke, and toxic gases between rooms or compartments.

It is crucial to ensure that these fire doors and seals are properly installed and maintained to ensure their effectiveness in the event of a fire. Regular inspections and testing should be carried out to ensure that they meet the required standards and are functioning as intended.

The use of both an FD30 fire door and intumescent seals can play a significant role in preventing the spread of fire and protecting people’s lives in the event of a fire. As such, it is important for building owners and managers to prioritise their installation and maintenance as part of their overall fire safety strategy.

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