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A Comprehensive Guide to Fire Rated Doors: Understanding Their Importance and Role in Fire Safety

Verus Group • Apr 03, 2023

A Comprehensive Guide to Fire Rated Doors: Understanding Their Importance and Role in Fire Safety;


Fire door ratings refer to the length of time a fire door can withstand exposure to fire and its dangerous elements, such as heat, flame, and smoke. The rating is determined by the amount of time a door can resist these elements before they can pass through it. There are different ratings for fire doors, and the environment in which they are installed will dictate which type to choose. The most common ratings for commercial fire doors are FD30 and FD60. An FD30 fire door is designed and constructed to provide up to 30 minutes resistance to flame, heat, and smoke in the event of a fire outbreak, while an FD60 fire door can resist the fire elements for up to 60 minutes, containing any smoke, flame, and heat in the area of the initial fire outbreak. There are fire rated doors of even greater resistance available should the circumstances and environment require them.


Intumescent Seals:

An intumescent seal is a crucial component of a fire rated door. It is a strip made of a material that can expand when exposed to heat, such as graphite or sodium silicate. The seal is fitted around the edges of the door and the door frame and expands when exposed to heat, filling any gaps that may have formed between the door and the frame. This expansion creates a barrier that helps to prevent the spread of fire and smoke for the duration of the fire rating of the door. Intumescent seals are a critical part of a fire door's ability to provide effective passive fire protection.


Where are fire doors required?

Fire doors are often mandatory in certain types of buildings to ensure the safety of occupants in case of a fire. The specific regulations for the use of fire doors may vary depending on the location and type of building, but in general, fire doors are required in the following areas:

·        All apartment blocks or flats

·        Houses of multiple occupation

·        All commercial and public buildings, including offices, schools, hospitals, and hotels

·        Buildings with multiple stories in height

·        Areas containing equipment or materials that are prone to catching fire, such as kitchens or server rooms.

It is important to note that building codes and regulations vary by region and it is essential to consult with a professional to determine the specific requirements for your location.


How often should fire doors be checked?

Fire doors should be checked regularly to ensure they are in good working condition and will function properly in the event of a fire. The frequency of the checks may depend on factors such as the type of building, the level of use and the level of risk. In general, it is recommended that fire doors should be inspected at least every six months, and any defects or issues should be fixed immediately. In addition, a more detailed inspection by a qualified professional should be conducted at least once a year to ensure the fire doors meet the required standards and are functioning as intended.


Here is a 5 step fire door checklist:

  • Check for appropriate certification: All fire doors should have a certification label or plug that indicates they meet the relevant safety standards. Check that the door has a legitimate certification mark from a recognized third-party certification body.
  • Check for proper gaps: Fire doors need to fit properly and have a consistent gap between the door and frame. Ensure that the gap is between 3-4mm along the sides and top of the door and no more than 8mm at the bottom.
  • Check the hinges: Fire doors should have at least three hinges that are securely fastened to the frame and door. Check that the hinges are in good condition, not damaged or missing, and are properly aligned.
  • Check the door closer: The door closer is an essential component of a fire door and must be in good working condition. Test the door closer to ensure that it closes the door fully and smoothly and that it does not prevent the door from opening or closing correctly.
  • Check the overall condition: Check the overall condition of the door for any signs of damage or wear, including cracks, splits, holes, or warping. Ensure that there are no obstructions that could prevent the door from closing, such as wedges, hooks, or other objects.



What are the regulations surrounding fire doors?

Ongoing inspection and maintenance should be carried out by qualified fire risk assessors and installers and the original fire door specification should be adhered to.


BS 8214 applies to the specification, installation and maintenance of fire doors, stating that a fire door should offer a similar level of fire resistance as the fixed elements of a building. 


BS 5839-1:2013 should be adhered to when installing items such as Door Hold Open Devices to a fire door and is the standard by which such items are deemed to be effective.


BS 9999:2008 is the fire safety code of practice for building design, management and use. The standard can be used to review existing buildings, buildings under construction, and extensions or alterations for an existing building. This standard can act as an assessment tool to ensure fire safety strategy remains robust.

by Verus Group 04 Jan, 2024
In the period between 2018 – 2021, there were 1,937 fires at educational premises in the UK, 411 of which were recorded as deliberate. The safety of our children is paramount, and nowhere is this more evident than in our schools. These educational institutions serve as the foundation for our children's future, shaping their lives and providing a nurturing environment for growth and learning. Ensuring the safety of students and staff is a top priority, and one critical aspect of this safety is fire stopping . In this blog, we'll discuss the role of compartmentation in schools, highlight the misuse of materials like PU foam , and explore the significance of fire stopping in safeguarding these educational spaces. Compartmentation: Creating Safe Zones Compartmentation is an essential aspect of fire safety across schools and other educational premises. It involves dividing a building into smaller, fire-tight areas which can withstand flames and heat for a specified period, using a combination of tested systems and construction materials. To demonstrate how this works, we have provided an example floor plan at the end of this article, displaying the fire compartmentation design within a block of flats. The benefits of compartmentation include: Delaying Fire Spread: Compartmentation buys valuable time for occupants to evacuate and for first responders to arrive and contain the fire. Limiting Damage: Fire-resistant compartments prevent fires from spreading to other parts of the building, reducing property damage. Minimising Smoke and Toxic Gas Spread: Effective compartmentation helps keep smoke and toxic gases contained, enhancing the chances of a safe evacuation. Fire Stopping: A Crucial Component of School Safety Fire stopping is a major component in supporting effective compartmentation. It specifically relates to the sealing of openings/penetrations, linear gaps, cavities, and dampers, which may be present in a building where services pass from one compartment to another, at meeting edges of walls or ceilings, or within ventilation ducting. A system of fire-resisting or intumescent materials and devices is used in order to obstruct the spread of fire, smoke and toxic gases throughout a building. It's an indispensable element in school safety and plays a pivotal role in providing sufficient time for evacuation in case of a fire outbreak, whilst also offering first responders a safer environment from which to control the situation and save lives. Effective fire stopping within schools can: Protect Lives: The safety of students, teachers, and staff should always be the top priority in schools. Fire stopping measures are essential for preventing the rapid spread of fire, giving everyone in the building more time to evacuate safely. Reduce Property Damage: Fires in schools can result in substantial and costly property damage. Correctly-installed fire stopping can help contain fires to specific areas, minimizing damage and the subsequent cost of repairs. Ensure Continuity of Education: By preventing the rapid spread of fire, fire stopping measures can help maintain the structural integrity of the building, ensuring that the educational institution can continue to serve its primary purpose: providing education. Misuse of PU Foam - A Potential Hazard: Polyurethane (PU) Foam is a versatile material commonly used for various construction and insulation purposes. However, its misuse in the context of fire stopping can have catastrophic consequences. PU Foam is highly flammable and emits toxic gases when ignited. Some of the potential issues with PU Foam in fire stopping applications include: Rapid Combustion: PU foam can catch fire quickly and propagate intense heat and flames, contributing to the rapid spread of fire within a building. Toxic Fumes: When PU foam burns, it releases toxic gases, including carbon monoxide, which can incapacitate and harm individuals trying to escape a fire. Intense smoke: The production of dense smoke as it ignites can drastically reduce visibility, inhibiting an individual's ability to find a safe exit, as well as causing respiratory difficulties. Ineffective Fire Stopping: When used incorrectly or inappropriately, PU foam can undermine the intended fire stopping measures, making it a poor choice for fire containment. In summary, fire stopping and compartmentation are integral components of a school's fire safety strategy, working together to safeguard the lives of students, teachers, and staff while also protecting the institution itself. The misuse of materials like PU foam can have dire consequences, underscoring the importance of adhering to strict fire safety standards. To ensure the safety of our schools, it's essential for educational institutions to invest in the regular inspection and maintenance of built-in fire safety components, and to educate their staff and students about fire safety procedures. By doing so, we can maintain a secure learning environment that protects our future generation and empowers them to thrive. Schools are legally required to conduct organised and methodical Fire Risk Assessments on an annual basis. In addition, the Responsible Person should consider whether a specific compartmentation and fire stopping survey would be advisable in order to identify any breaches which may have occurred during the school's lifetime. If you have any concerns over any of the topics we have discussed in this blog, or about the educational premises you work in/attend, please do not hesitate to contact us.
by Verus Group 14 Dec, 2023
Fire compartmentation is a fundamental concept in building design and safety, with the ultimate goal of protecting life and property. It involves dividing a building into distinct sections or compartments to contain the spread of fire and smoke, preventing it from moving freely throughout the entire structure. In turn, this gives occupants more time to escape, and firefighters the opportunity to control the fire. Importance of Fire Compartmentation: Life Safety: The primary purpose of fire compartmentation is to protect lives. By limiting the fire's ability to spread quickly, occupants have more time to evacuate the building safely, reducing the risk of injury or death. Property Protection: Fire compartmentation not only safeguards lives but also protects property. It helps minimize the damage caused by fires, reducing the economic impact on building owners and insurers. Enhanced Firefighter Safety: Firefighters need time and controlled conditions to extinguish fires effectively. Fire compartmentation provides a more manageable environment, making it safer for first responders to enter and control the blaze. Legal Compliance: Building codes and regulations often require the implementation of fire compartmentation in commercial, industrial, and residential structures. Compliance with these codes is essential for obtaining occupancy permits and insurance coverage. Key Components of Fire Compartmentation: Fire-Resistant Barriers: To achieve compartmentation, buildings are equipped with fire-resistant barriers such as walls, floors, doors, and ceilings. These barriers are constructed using materials that can withstand high temperatures and limit the movement of heat and smoke. Common materials include fire-rated gypsum board, concrete, and fire-resistant glass. Fire Stopping : Fire stopping is a crucial element of fire compartmentation and plays a significant role in ensuring the integrity of fire-resistant barriers and containment systems within buildings. It involves the installation of intumescent or fire-resisting materials and systems to seal penetrations and gaps in fire-rated walls, floors, and ceilings, thus preventing the passage of fire, smoke and hot gases from one compartment to another. Fire Doors: Fire Doors are an integral part of fire compartmentation. They are specially designed doors that will withstand intense heat and flames for a specified duration, providing a reliable exit path for building occupants whilst also preventing the fire from spreading further. Fire Dampers: In buildings with HVAC systems, fire dampers are crucial. These are mechanical devices that can close off or restrict air movement within ducts to prevent the spread of fire and smoke within a building's ventilation system. Whilst fire compartmentation is a crucial element of fire safety, its effectiveness depends on regular inspections and maintenance. Over time, wear and tear, or building alterations, can compromise the integrity of fire-resistant barriers, doors, dampers, and fire stopping. Neglecting maintenance can render the compartmentation systems ineffective, increasing the associated risks in case of a fire. Pictured below is an example floor plan to demonstrate intended compartmentation within a block of apartments. If you would like further information, or if your building requires a Compartmentation Survey , please do not hesitate to contact us.
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Why is Polyurethane (PU) Foam used? PU Foam, also known as expanding foam, is generally thought of as a cheap and quick-to-use product, and has been widely used in the construction industry filling and sealing gaps and penetrations. The PU foams which are marketed as fire-resisting and sometimes used for "fire stopping" , are usually pink to distinguish from other foams, and are therefore commonly referred to as 'pink foam'. If a competent, third-party accredited contractor was present, however, it is extremely unlikely that they would recommend or use it for fire-stopping purposes. 6 reasons why PU Foam is not suitable for Fire Stopping: Lack of Proper Fire Resistance: Pink expanding foam, despite claiming to be 'fire-rated' on the packaging, often falls short when it comes to providing adequate fire resistance. Whilst is is not considered flammable, it may not have the necessary fire retardant properties and test data across a broad spectrum of scenarios which would be required for effective fire stopping in many instances. Insufficient Smoke Barrier: Fire stopping materials should not only prevent the spread of flames but also act as a barrier against smoke. Pink foam may not possess the necessary properties to effectively contain smoke, which can be equally hazardous during a fire incident. Limited Durability: Fire stopping materials should be able to withstand the rigors of time and maintain their integrity over the long term. Pink foam, however, may degrade or deteriorate over time, compromising its ability to effectively stop the spread of fire. Inadequate Expansion Control: Expanding foam can inflate in an unpredictable manner leading to uneven coverage, sometimes expanding beyond its intended boundaries, or even leaving unnoticed gaps. This can create pathways for fire and smoke to bypass the fire stopping measures, rendering them ineffective. Hazard to Health: Expanding foam can produce toxic fumes that can cause permanent health damage. Compliance Issues: Reputed organisations such as ASFP, BMTRADA, FIRAS, and IFE strongly recommend the removal and replacement of pink foam installations with authentic fire-rated alternatives. The primary concern lies in the difficulty of accurately tracing the product without conducting chemical composition testing. To ensure reliable fire safety measures, it is advisable to opt for fire-rated materials with suitable test data that can be easily identified and verified for their intended use. If you have concerns over the use of pink foam within your building, contact us today for further advice.
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