Ignis Doors

Presenting Ignis Doors UK's

Internal Fire Doors

What is a Fire Door?

Designed to resist the spread of fire and smoke within a building – an internal fire door is essential for a building’s fire protection system, especially because it contains fire and allows occupants more time to evacuate.

Constructed with fire-resistant materials and equipped with features to enhance effectiveness during a fire, an internal fire door will withstand high temperatures and prevent flames from spreading during a given time duration (30 minutes, 60 minutes, and 90 minutes).

Fire Doors Replacement

What is an ‘Internal Fire Door’?

Installed within a building to prevent fire and smoke from one area to another, an ‘internal fire door’ is a fire-resistant door that is positioned within the interior of a building.

The primary purpose of an internal fire door is to slow the spread of fire, smoke, and heat – and let people evacuate a building with firefighters given better control over the fire’s progression.

Internal fire doors are vital in larger buildings where various sections or rooms need to be isolated to prevent the rapid expansion of a fire.


Fire Resistant Materials

Fire doors are made from fire-resistant materials, with common materials including steel, gypsum, and vermiculite boards.

Sealing Mechanisms

Fire doors are fitted with seals around the edges that expand when exposed to heat, creating an airtight seal that prevents the passage of flames.

Closers and Latches

These self-closing mechanisms ensure that doors are kept closed at all times and prevent the spread of fire even if occupants forget to close the door.

Fire-Rated Glass

With glass panels made from fire-resistant materials, fire doors allow visibility while maintaining fire resistance.

Insulation and Integrity Ratings

Fire doors are classified based on integrity (preventing flames and gases from passing through) and insulation (preventing excessive heat transfer) during a fire.

Internal Fire Doors vs. External Fire Doors: What’s the Difference?

Internal Fire Doors and External Fire Doors are installed to prevent the spread of fire and smoke – but the main difference between both is their respective locations within a building and their intended purposes.

Internal Fire Doors

  • Are located in the Interiors of buildings (rooms, corridors, staircases, compartments)
  • Compartmentalize different areas inside the building (reducing fire spreading from one area to another)
  • Are equipped with fire-resistant materials and seals that expand to block smoke and flames
  • Have self-closing mechanisms that ensure that doors remain closed
  • Might also have fire-rated glass panels for visibility

External Fire doors

  • Are located at building entrances and exits, including main and emergency exits
  • Are a barrier against the spread of fire from outside a building to its interior (protecting occupants within a building)
  • Resist fire from the external environment spreading into the inside, aiding firefighting efforts
  • Often include panic hardware for quick and easy egress during emergencies
  • Have self-closing mechanisms and fire-resistant materials


 Ignis Doors UK specializes in providing high-quality fire door solutions that prioritize safety and convenience within buildings.

An internal fire door is designed to contain the spread of fire and smoke within a building, ensuring the safety of occupants and aiding firefighting efforts.
Internal fire doors are made from fire-resistant materials and equipped with features such as self-closing mechanisms and intumescent seals. These features slow down the progression of fire and smoke, creating a barrier between different sections of a building.
Internal fire doors are commonly made from materials like fire-resistant steel, solid timber, and fire-rated composite materials.
Fire-rated glass panels provide visibility while maintaining fire resistance, allowing occupants to see through the door and ensuring a safer evacuation.
Internal fire doors need to be tested and certified according to relevant fire safety standards, ensuring their effectiveness in containing fires.
Internal fire doors are used in various settings, including residential buildings, to enhance safety and compartmentalization.
Internal fire doors play a crucial role in creating fire-resistant compartments, slowing down the spread of fire and smoke, and providing occupants more time to evacuate.
Yes, internal fire doors can often be customized to match the aesthetic and design requirements of a building while still meeting fire safety standards.
You can explore Ignis Doors UK’s range of internal fire doors, designed to harmonize safety and convenience, on this website or by contacting customer support for more information.

About Ignis Doors UK

Ignis Doors UK specializes in crafting tailored door set solutions and complementary products. We are dedicated to supplying fully certified, bespoke timber fire-door sets across social housing, public, commercial, and residential sectors.

Our distinct value lies in manufacturing our timber door sets, tested and certified at our Milton Keynes facility. Our commitment to exceptional customer service, technical expertise, and unwavering quality ensures we stand out among our peers.

At Ignis Doors UK, we take pride in our deep reservoir of knowledge – derived from fire safety experts and former UK Fire Service members who have over two decades of experience in the passive fire sector. Our official team stands ready to offer impeccable customer service and address all inquiries promptly and efficiently.

Have any questions for Ignis Doors UK?

Regardless of your selection, be confident that our fire doors are engineered to meet the most stringent standards of strength, performance, and durability.

For more information or any questions, contact us.