Fire Safety and Accessibility
Fire safety and accessibility are the two life-safety domains most often failed at permit stage, because both impose continuous routes rather than isolated features. The exam tests means of egress, compartmentation, firefighting access, and the accessible route from the street to every service.
Fire safety essentials
- Means of egress: travel distances, number and clear width of exits, protected stairways, self-closing fire doors, smoke control in basements and tall buildings.
- Compartmentation and structural fire resistance graded by height and use.
- Firefighting access: appliance routes, hydrants, dry risers, and access to the building.
- Occupancy type (residential, office, assembly, storage) drives the requirements, and many uses also need a permit from the Fire and Rescue Authority.
Accessibility
SI 5281 requires a continuous accessible route from the public way and accessible parking to the entrance, and through the building to all services: accessible toilets, elevator, signage, and parking spaces in the required number and dimensions.
Worked example
Adding a floor to an existing walk-up building. Reasoning: accessibility does not stop at the new floor - it applies to the route serving it, so the vertical circulation must be resolved, usually by adding an elevator shaft. If physical constraints make that impossible, the exemption route must be documented and approved before the permit, not after.
Traps
Making only the new wing accessible; forgetting the external path, kerbs and gradients; holding fire doors open with wedges; measuring egress width to the wall face instead of the clear width.