Checks should consider whether the door closes fully, its condition, the fit within the frame, gaps, seals, hinges, closer, glazing and relevant ironmongery. The appropriate inspection frequency depends on the premises, use, door location and level of wear.
Closing performance
Where a fire door is intended to self-close, it should close fully into the frame without being obstructed. Defective closers, wedges, floor coverings, damaged latches or misalignment can all prevent reliable closing.
Condition of the leaf and frame
Look for damage, distortion, loose components, poor repairs or alterations to the door leaf and frame. A door can appear substantial while still having defects that affect its fire-resisting function.
Gaps, seals and hardware
The condition and fit of intumescent or smoke seals, hinges, latches, locks and other hardware should be considered where relevant. Excessive or inconsistent gaps can also indicate that repair, adjustment or further assessment is needed.
Glazing and later alterations
Vision panels, glazing systems, letterplates and other apertures can form part of the fire-resisting door set. Later alterations should not be assumed suitable merely because they appear neat or have been in place for a long time.
Inspection should reflect use and risk
A heavily used corridor door in a busy workplace may need more frequent attention than a low-use door in a protected plant area. The fire risk assessment and maintenance regime should set a proportionate approach, with more detailed inspection where defects or uncertainty justify it.