Fire doors are a critical component of passive fire protection in buildings, playing a key role in compartmentalising fire and smoke, and protecting escape routes. However, questions often arise around the design flexibility of fire doors, particularly when it comes to aesthetics and visibility.
One common query is can fire doors contain glazing? The answer is yes, but with specific conditions and regulations that must be met.
In this blog post, we’ll delve into everything you need to know about glazed fire doors in the UK, from legal requirements and certification standards to practical considerations for installation.
What Is a Fire Door?
Before diving into glazing specifics, it’s worth revisiting what a fire door is. Fire doors are specially constructed doors designed to resist the spread of fire and smoke between compartments of a building. They are rated by the amount of time they can withstand fire, usually FD30 (30 minutes) or FD60 (60 minutes), and must be installed with compatible frames, hardware, seals, and, if applicable, glazing.
Can Fire Doors Include Glazing?
Yes, fire doors can contain glazing, and it is actually quite common in settings like offices, hospitals, schools, hotels and other public buildings where visibility, light transmission, and aesthetics are important. However, not all types of glass or installation methods are suitable, and the presence of glazing introduces additional compliance requirements.
UK Regulations and Standards Governing Fire Door Glazing
In the UK, fire door glazing must comply with several key standards and regulations:
BS 476-22 or BS EN 1634-1
Fire-resisting performance of doors (and glazing) is tested according to:
- BS 476-22: For fire resistance of non-loadbearing elements, still referenced for legacy systems.
- BS EN 1634-1: The European standard for fire resistance and smoke control of door and shutter assemblies.
Any fire door with glazing must be tested as a complete assembly, the door leaf, frame, glazing, glass type, beads, and intumescent seals.
Building Regulations: Approved Document B (Fire Safety)
Approved Document B outlines fire safety guidance for buildings in England and Wales. Regarding fire doors:
- Doors between habitable rooms and escape routes must be fire-resisting.
- Vision panels are encouraged for improved safety and to aid escape.
- All glazing used in fire doors must demonstrate appropriate fire resistance and be installed per manufacturer specifications.
Third-Party Certification
Look for third-party certified systems to ensure that the door set, including its glazing, has been tested and verified. Certification schemes help ensure consistent quality and performance.
Types of Fire-Rated Glazing
Not all glass is equal. Fire-resisting glass is specially manufactured and tested for thermal and mechanical resistance. Common types include:
1. Wired Glass
This traditional fire-rated glass includes a wire mesh that holds the glass in place during fire. It has limited applications due to aesthetics and brittleness.
2. Laminated Fire Glass
Made by sandwiching fire-resistant interlayers between sheets of glass. It can offer integrity (resistance to flames) and insulation (resistance to heat).
3. Ceramic Glass
Highly heat-resistant and capable of withstanding thermal shock. Often used in FD60 or higher fire doors.
4. Intumescent Laminates
These are designed to swell when exposed to heat, forming an insulating barrier.
Always confirm the fire rating (e.g. 30 or 60 minutes) of the specific glazing being used, and ensure it’s part of a tested and approved fire door system.
Vision Panels In Fir Doors: Practical Benefits and Fire Safety
Incorporating vision panels (small glazed sections) in fire doors offers:
- Improved visibility for safety in corridors or high-traffic areas.
- Natural light flow in interior spaces.
- Enhanced aesthetics, especially in more modern buildings.
- Enhanced accessibility and DDA (Disability Discrimination Act) compliance.
However, the size and position of glazing must follow the tested design. You cannot simply cut out a section and install a panel; this would void the certification.
Glazed Fire Doors: Key Installation Considerations
To maintain fire integrity:
- Only Use Manufacturer-Approved Kits: The glass, beading, seals, and fixings must be part of the approved system.
- Professional Installation: Always use competent installers familiar with fire door regulations.
- Check Labels and Certifications: Fire-rated doorsets will have labels or plug marks identifying their rating and certifier.
- Maintain Regularly: Check for cracks in glass, loose beads, or damaged seals during routine fire door inspections.
Common Mistakes to Avoid
- Using untested glass in a fire door.
- Modifying an existing fire door to add a vision panel.
- Failing to use intumescent seals or glazing tape around the glass.
- Assuming all glass labelled “fire-resistant” is suitable for any fire door.
Conclusion
Fire doors can and often do contain glazing, but only when done in full compliance with UK fire safety standards. The glazing must be part of a tested and certified fire door assembly, use appropriate fire-rated glass, and be installed with the correct intumescent materials and beading.
If you’re planning to specify or install glazed fire doors, consult with certified suppliers and always ensure documentation is in place. Fire safety is not an area where shortcuts can be taken, compliance saves lives.
Why Choose Fire Door Care?
Protect your property and ensure safety with our expert fire door services! We specialize in professional fire door installation, inspection, and repair, ensuring full compliance with fire safety regulations. Our certified team delivers high-quality solutions to enhance fire resistance, prevent smoke spread, and safeguard lives. Whether you need a new fire door, routine inspections, or urgent repairs, we provide reliable and cost-effective services tailored to your needs.
- Safety First: We prioritise protecting lives and properties by ensuring every fire door meets the highest safety standards.
- Uncompromising Quality: Our expert team delivers precision craftsmanship and reliable solutions for long-lasting fire protection.
- Integrity You Can Trust: We are committed to honest, transparent, and dependable service at every step of the process.
- Customer Focused: Your safety is our mission. We tailor every inspection, repair, and installation to your unique needs.
If you would like to find out more about our fire door services, or would like help, advice or a quote please feel free to call us on 0203 488 5923 or send us a message here.
