FIRE SAFETY
Above: Close up of fire damper flaps.
Above right: Sometimes it is hard to see how such obvious clashes are missed.
are not that expensive, the main cost is in installing them, so this was a false economy that may have benefitted installers but certainly has not helped building users. Let us not forget that using the quick self-drilling screw option has been contrary to guidance going back to 2010. These fixings have long been a known risk and where they have been used, they must be replaced, or the risk in some way be mitigated. This is because ductwork connected to fire dampers
should be provided with ‘break-away’ joints, which are created by using fixings and connectors with low melting points. The break-away joint reduces the risk of a fire damper being pulled away from the fire compartment in the event of a collapse of the ductwork or damaging the penetration seal around the damper through the expansion of ductwork. Self-drilling screws simply do not melt at low enough temperatures to achieve this. The Building Engineering Services Association (BESA)
ran an awareness campaign about this back in 2022, at which point it was clear that all establishments had a duty to investigate their own installations urgently. Easier said than done because, for many, it meant starting from scratch and finding out where their dampers even were and then undertaking expensive work to install inspection hatches. This only highlighted how non-compliant many estates were because asset registers should already have been in place and existing guidance already stated that inspection access hatches should have been fitted. Meanwhile BESA set about revising its existing guidance on fire damper installation. DW145 – Fire Dampers (E/EI) and Leakage Guide to Good Practice for Installation, Design and Selection, Inspection and Maintenance was published at the end of 2024. All credit to BESA for putting its head above the
parapet and addressing a shocking situation, but the 2024 guidance has been of limited use for duty holders and competent persons managing existing infrastructure. A welcome new Technical Bulletin from BESA, published in July 2025, does now provide advice for legacy systems.
The access issue Even before the Tek screw issue was highlighted, driving the current urgency into fire damper inspection and compliance, there was already a huge elephant in the room. While safety regulations require that fire dampers should be inspected and tested at least annually, the sheer
34 Health Estate Journal May 2026
difficulty/impossibility of getting to them meant that was not happening in many cases. Where dampers are present, there are often not enough access hatches, perhaps only on one side of the damper and not both. This is surprising because, again, ventilation ductwork accesses hatches are fairly basic, and they are relatively inexpensive and easy to fit when ducting is first installed. In contrast, retrofitting access hatches in a working building starts to add significant cost and disruption. So, the inspection and testing backlog has been building for years and the current imperative to address it urgently adds unwelcome pressure to severely pressed budgets. Even when budget is found, costs can still escalate due to lack of co-ordination between trades. In new installations and old alike, we find access hatches that are impossible to use because other pipes or ducts obstruct them, or the electrical trade has come in and installed cables and cable tray beneath them. This lack of co-ordination is astonishing. Is it perhaps an issue that arises when too many sub-contractors are involved in the chain and the team that arrives on site armed with a specific job sheet has no overview or interest beyond it? So much for the digital record/golden thread of information which should include all new installation
The first step towards resolution is to know your building, have a comprehensive asset register that gives you a complete picture, and to work to understand risk so you can manage it pragmatically with a focus on building users.
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