The Goal: Access Control That Supports Your Fire Strategy
Imagine a busy NHS ward at night: a fire alarm sounds, staff must move patients to refuge points and external exits while secure stores and plant rooms remain protected. If you are a facilities manager, fire safety lead or installer in the UK, this guide shows how to align access control with your fire strategy so doors behave as expected when it matters.
In our experience, simple mismatches between door function and locking mode create the biggest safety risks. Read on to learn which doors should unlock, which should hold, how to specify interfaces, and what checks to require on handover. You’ll get practical actions, common pitfalls and a short checklist to use on site.
Key design inputs to record:
- Door function and typical occupants
- Likely fire scenarios and travel routes
- Power-loss behaviour (fail-safe or fail-secure)
- Fire alarm release method and monitoring
- Mechanical override and key-access needs
Fire Strategy Basics: Evacuation, Refuge And Compartmentation
If you’re in the UK, fire strategies rely on protected routes within set travel distances, refuge areas for assisted escape and compartmentation to slow fire spread. Doors must support those aims: escape doors must release, refuge doors must be usable with reasonable force, and compartment doors must close and hold.
A common issue we see is treating all doors the same. Automatic doors on escape routes must provide safe break-out or an alarm release. Use the BS EN 16005 safety audit checklist to confirm performance and compliance with pedestrian door safety requirements: BS EN 16005 automatic door safety audit checklist.
Fail-Safe vs Fail-Secure: Choosing The Right Default
Use fail-safe where life safety is the priority: internal escape doors, final exits from stair cores and doors to refuges should unlock on alarm or power loss. Use fail-secure where you must maintain a compartment or protect high-value assets, for example plant rooms, pharmacy stores or server rooms not forming part of an escape route.
If you’re unsure which to choose, start from the door role in the fire plan and apply BS 7273-4 principles. Always provide approved request-to-exit devices, mechanical overrides and break-glass where appropriate. More on power-loss planning here: fail safe locking and power cuts.
Quick Checklist
- Does the door form part of an escape route? If yes, default to fail-safe.
- Is the door protecting a compartment or high-value area? Consider fail-secure with monitored release.
- Is there a battery-backed PSU sized for the lock and operator loads?
- Are RTE, break-glass and mechanical overrides fitted and tested?
Match Door Type And Hardware To The Fire Plan
Automatic swing and sliding doors can be safe when matched to the right locking and monitoring. Use monitored motor locks where fail-secure holding is needed but users still require reliable egress. Maglocks give predictable fail-safe release but must be monitored.
For sliding doors on escape routes, ensure a tested break-out function or an alarm release to achieve clear width. Consider accessible operation: touchless activation, ergonomic handles and threshold design. For practical selection guidance see selecting automatic doors – swing or sliding.
This image was generated with AI and may not always represent the product or service exactly.
Common Integration Mistakes That Fight The Fire Strategy
A common issue we see is a fire alarm relay wired without monitoring so locks do not actually release. Other frequent faults: time delays that block egress, unmonitored interfaces, and power supplies with no battery backup. We also encounter airlocks, speed lanes or readers that trap people on the escape side.
- Use monitored fire interfaces and test weekly
- Fit the correct RTE devices and mechanical overrides
- Ensure interlocks release on fire for all doors in the route
- Size PSUs with batteries for evacuation plus safe shutdown
If you inherit issues, Access Automation can correct wiring, add monitored interfaces and retest as part of our repairs and servicing work: repairs & servicing.
What Most People Get Wrong
Most teams assume an access control panel’s “fire input” equals a safe release. It’s the monitored category, wiring and cause-and-effect logic that determine whether a door actually unlocks when needed.
Design The Interfaces: Fire Alarm, BMS And Power Resilience
Link access control to the fire alarm with monitored interfaces configured to the correct BS 7273-4 category for each door. Critical doors need higher assurance that they will release; test signalling, fault monitoring and cause-and-effect as a system, not piecemeal.
Use battery-backed power supplies sized for operator loads and lock hold current, with autonomy for evacuation plus safe shutdown. Keep interface drawings current and log all door-release events. Practical winter checks—seals, heaters and thresholds—help operators avoid sticking doors: preventing automated doors freezing shut.
This image was generated with AI and may not always represent the product or service exactly.
Accessibility First: Inclusive Egress And DDA-Compliant Choices
Accessible doors benefit everyone. Keep opening forces low, clear widths generous and visual/audible alerts clear. Touchless sensors and compliant push plates reduce barriers for assisted escape. Hand grips should be at consistent heights and contrast with door surfaces.
If you manage healthcare or public buildings, match these details to refuge points and assisted-escape procedures. Guidance on DDA door handles is here: DDA door handle requirements.
Prove It Works: Testing, Servicing And Record Keeping
Test access-controlled doors weekly for fire release, including RTE and break-glass, and record results against door IDs. Monthly operator safety checks and annual BS EN 16005 audits are best practice. Replace batteries to schedule and train handover staff on the cause-and-effect diagram.
Good records reduce downtime, speed investigations and keep doors compliant. We document witnessed commissioning tests and provide training so the building team can own ongoing checks.
When This Doesn’t Apply
These recommendations assume a building with managed fire procedures and a structured fire strategy. Small domestic installations or isolated garden outbuildings with no occupied escape routes may not need the same level of interface sophistication; always follow the relevant fire risk assessment.
Sector Snapshots: Applying The Rules In Real Buildings
Healthcare: sliding entrances with break-out and touchless operation, ward doors set to maintain compartmentation with staff override, stair cores release on alarm. Education and leisure: corridor swing doors on hold-open drop on alarm, interlocks and speed lanes release for evacuation. Residential HMOs: perimeter security with internal escape routes set to fail-safe and simple mechanical overrides for the fire service.
How Access Automation Delivers Compliant, Reliable Systems
Access Automation starts with a door-by-door survey, builds a hardware and interface schedule, produces interface drawings, commissions with the fire alarm team and signs off with witnessed tests and training. For higher-security areas we integrate certified motor locks and key systems while maintaining compliant egress and documented controls.
FAQs
Which doors must always unlock on fire alarm?
Doors that form part of an escape route or provide egress from refuge areas should unlock. The fire risk assessment and BS 7273-4 determine whether any exceptions are permitted for security doors that are not on escape routes.
How often should I test and record fire-release on access-controlled doors?
We recommend weekly fire-release tests, monthly operator safety checks and annual full servicing. Record results by door ID and resolve faults promptly to maintain compliance.
Can you upgrade existing systems without full replacement?
Often yes. We commonly add monitored fire interfaces, re-route RTE and break-glass wiring, resize PSUs and reprogram logic, then retest and document the changes to meet the fire strategy.
What should I ask for at handover to prove compliance?
Request door schedules, cause-and-effect drawings, witnessed commissioning test records, a maintenance plan with test intervals, and staff training logs. These form the basis of ongoing compliance.