Cladding fire performance is often discussed in terms of the outer surface. Reaction-to-fire classifications and panel materials tend to dominate both specification and debate. That focus is understandable, but it is only part of the picture.

Recent work by MacLeod, Butterworth and Law provides a more complete view. Their parallel panel experiments examine cladding and insulation in combination, allowing the contribution of each to overall heat release to be measured.

Across engineering and scientific disciplines, the limiting factor is rarely the absence of knowledge. Advances in modelling, data analysis and material science continue at pace. The challenge lies in how that knowledge is interpreted and applied in practice.

Fire safety is no exception.

Investigators are working to establish how and why the New Year’s Eve fire at a bar in a Swiss ski resort developed so rapidly. Early indications point to a familiar combination: a small ignition source associated with a celebration, combustible lining materials, and a crowded internal environment.

There is a subtle but important shift underway in professional practice. It is not about new standards or new materials. It is about how decisions are being made, and more importantly, who is making them.

If a fire test is not a truth, then what happens when there is no test at all?

There is a persistent misunderstanding in fire safety that continues to surface in projects, reports, and, increasingly, disputes.

A reflection on ARB’s latest guidance, and the gap that still remains for architects

There is a quiet but dangerous assumption that crops up time and again in existing buildings: if a wall looks lightweight, it must be non-loadbearing. And if it is non-loadbearing, its fire rating can probably be reduced without consequence.

Positive Input Ventilation (PIV) has become something of a quiet success story in housing. It is simple, relatively cheap, and often effective at tackling condensation and mould by introducing a continuous supply of fresh, filtered air into a dwelling and displacing moist air.

A BBC story featuring a disabled teenager campaigning for legal change on evacuation planning should make uncomfortable reading for anyone involved in fire safety design.

There is a quiet shift underway in fire engineering. It is not about new guidance, new tools or even new regulation. It is about something less comfortable: whether the profession is prepared to learn in public.

Fire safety design continues to be framed, in many projects, almost exclusively around life safety. This is entirely appropriate as a minimum objective. It is not sufficient as a sole objective.

The industry has, understandably, leaned heavily into certification over the past decade. Third-party schemes, registers, accreditations and badges have all become more visible, more structured, and more frequently demanded. This is, in principle, a positive development.

There remains a persistent and, frankly, dangerous misunderstanding at the heart of fire safety design and delivery: a product that has been tested is assumed to perform in any configuration in which it is installed. It will not.

Compartmentation is often presented as one of the most fundamental elements of fire safety. Walls, floors, and doors are designed to resist fire and smoke, limiting spread and protecting escape routes. On drawings, this is usually clear, with lines defined, boundaries marked, and periods of fire resistance specified.

There has been a quiet but significant shift in the fire safety landscape.

There is a tendency, when dealing with historic buildings, to treat heritage as a constraint on fire safety.

A recurring feature of fires involving historic buildings is not the absence of expertise, but the absence of clear and sustained accountability.

Historic buildings rarely burn down because of a single failure. More often, fire is the outcome of a series of small, entirely foreseeable conditions aligning over time.

Fire safety design has traditionally been framed around compliance.