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Internal Fire Doors

The importance of internal fire doors

Internal fire doors are critical to fire safety due to their fire resting properties that are designed to stop the spread of fire and smoke for a set period. They provide essential fire compartmentation to allow people to use corridors and escape routes in the event of a fire.

What is the fire rating of an internal fire door

Fire-rated internal fire doors

Internal fire doors are commonly rated as FD30 or FD60, this means that they are fire rated to withstand fire and smoke for either 30 minutes (FD30) or 60 minutes (FD60). Internal fire doors are commonly rated at FD30 for when the fire doors lead to escape routes, however FD60 or even higher rated doors could be specified to provide increased protection for people and important infrastructure. Fire doors are available with higher ratings also such as FD90 or FD240.

Types of Internal Fire Door

Because internal fire doors vary so much in size, type, fire rating and weight and aesthetics it can be difficult to choose the correct type. For example, a thicker, heavier fire door does not mean that it will necessarily provide better protection. It is vital that you choose an accredited and trustworthy fire door manufacturer that will ensure that the fire door conforms to the relevant UK fire door regulations.

Several other factors that must be considered before purchasing the fire doors such as security requirements, safety glazing, ventilation requirements and high traffic areas. The following is a selection of internal fire door types that ClearView supply:

  • Internal fire doors with glass
  • Internal fire doors with Oak
  • Internal fire doors 4 panel
  • Internal fire doors (FD30)
  • Internal fire doors (FD60)
  • Internal fire doors domestic
  • Internal oak fire doors with glass
  • Internal fire doors grey
  • Internal fire doors with glass panels

fire doors in hosptial

Internal Fire Door Partners
Fire Door Regulations for Installation and Maintenance

Under current regulations a competent person must be appointed to manage the safe installation, maintenance, and inspection of fire doors in accordance with the manufacturer’s instructions. All fire doors should be checked regularly to ensure they function correctly. This should be considered in the same way as testing a smoke alarm or a fire extinguisher. Any slight alteration to the door or its surroundings can impact the performance of a door. Checks should be done at the intervals that are stated in the fire risk assessment. A record of all tests and checks and any defects remedied, should be maintained in the fire safety manual/logbook.

Fire Door Regulations
How to Inspect an Internal Fire Doors

The following is a sample of the Internal fire door checks that ClearView fire door specialists undertake to assess the serviceability and integrity of fire doors. The checks should be carried out at least 6 monthly to comply with UK statutory regulations for fire doors.

  • Check that the frame to door leaf gap does not exceed 4 mm (or in line with manufacturer’s data sheet) and that the door easily closes.
  • Check that hinges and push bars are correctly lubricated in accordance with the manufacturer’s recommendations (where applicable).
  • Check that the quantity of hinges is the same quantity to which the door has passed its fire certification (normally at least three).
  • Ensure the door to floor covering gap is consistently 10 mm or less when the door is closed. For fire doors that are required to limit the spread of cold smoke, the threshold gap should either be less than 3 mm, or it should have a threshold smoke seal fitted.
  • Visually inspect intumescent (heat-activated) seals, smoke seals (including brush or fin type) and acoustic seals for signs of wear or deformation and replace, as necessary.
  • Check that the intumescent seal is continuous and attached to the glass and bead.
  • Check for missing seals and replace, as necessary. Check that smoke seals have not been painted or varnished (intumescent strips may be overpainted in accordance with the manufacturer’s recommendations).
  • Check that the seals are well attached inside the groove in the frame or door leaf. Ensure that any smoke seals and acoustic seals have not been fitted in short sections, for example if localised damage has been repaired by splicing in a short piece of seal. NOTE: This may be acceptable in psychiatric units as an anti-ligature safeguard.
  • If the glass has been replaced, check that it is fire-rated glass and the same as the original or as specified in the door manufacturer’s data sheet.
  • If glazing panels are below 1500 mm from the bottom of the door, check that the glass is also safety glass.
  • Ensure door leaves are not structurally damaged or excessively bowed or deformed. Ensure hanging devices, securing devices, self-closing devices and automatic release mechanisms are operating correctly.
  • Inspect door coordinates on double doors. Ensure the coordinates are securely attached and adjusted properly to allow the first leaf (inactive leaf) to close before the second leaf (active leaf). Check this by completely opening both doors and simultaneously releasing them.
  • Test the operation of the panic hardware where fitted. Check for correct labelling or confirm fire door certification. If this is not available an assessment may be made as to the door’s suitability which may be included in the fire risk assessment.
  • Ensure the correct sign is associated with the door and secured on both sides of the door unless it is “Fire door keep locked” in which case it would be on one side.
  • Check any associated alarms to mimic panel for operation if fitted.

Internal Fire Door Inspection and Maintenance
Certified Internal Fire Door Installer

ClearView are third party certified installers by the International Fire Consultants through UKAS. We can install, maintain and repair internal fire doors, to give you piece of mind that you your building is compliant and that you have chosen a fire door installation company with the correct certifications, qualifications, and experience.

ClearView are also certified to ISO 45001 Occupational Health and Safety, ISO 9001 Quality Management System, and ISO 14001 Environmental management system. So, you can be assured that our processes are vigorous, tested, and effective at providing a cost effective, efficient, and environmentally sound internal fire door installation.

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Fire Door Installation
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Experienced

Over 25 years providing bespoke CCTV, Fire Protection & Access Control security solutions from our 2,000m² HQ in Essex.

Security Specialists

Complete fire & security service with rapid response 24/7, 365 days a year.