Fire Door and Compartmentation

Toolbox Talk Record

Ref: TBT-FIR-010  |  Issue: 1  |  Date: March 2026
PresenterProject
LocationDate

What?

Why?

Save livesFire compartmentation gives occupants time to escape by containing fire and smoke. Breaching it puts lives at immediate risk.
Legal requirementThe Fire Safety Order 2005 and Building Regulations Approved Document B require compartmentation to be maintained.
Grenfell lessonsThe Grenfell Tower Inquiry highlighted failures in compartmentation as a direct contributor to the scale of the tragedy.
Do Don't
  • Keep all fire doors closed and functioning with self-closers intact.
  • Report any damaged, propped open, or missing fire doors immediately.
  • Install fire stopping to all service penetrations through fire-rated walls and floors.
  • Use only tested and certified fire stopping products installed by trained personnel.
  • Check that intumescent strips and smoke seals are present on all fire doors.
  • Maintain compartmentation during construction work in occupied buildings.
  • Inspect fire doors for damage, warping, and correct operation regularly.
  • Record all fire stopping installations with photographic evidence for handover.
  • Reinstate temporary breaches in fire walls at the end of each working shift.
  • Brief all operatives on the importance of maintaining compartmentation on site.
  • DON'T prop open fire doors with wedges, extinguishers, or other objects.
  • DON'T leave penetrations through fire walls or floors unsealed overnight.
  • DON'T use non-certified products or unapproved methods for fire stopping.
  • DON'T remove self-closing devices from fire doors during construction work.
  • DON'T damage fire doors by impact from materials, plant, or equipment.
  • DON'T assume fire compartmentation is someone else's responsibility on site.
  • DON'T paint over intumescent strips or smoke seals on fire door edges.
  • DON'T create openings in fire walls without a plan to reinstate them.
  • DON'T install fire stopping if you have not been trained in the products.
  • DON'T ignore gaps around fire door frames; they compromise the fire rating.

See also: Fire Safety Awareness on Site | Fire Stopping Installation