Roofing sits at the apex of construction risk. Roofers work at height every day, on surfaces that can be fragile, unstable or weather-slicked, in outdoor conditions that change constantly, and often without the fall protection that other construction activities routinely employ. This guide brings together the patterns documented by the Health and Safety Executive (HSE) on fatal falls from height in roof work — who is most at risk, why domestic roofing is so consistently dangerous, and what the data means for every employer whose workers access rooftops.

Roofing: the most dangerous trade in UK construction

The statistics reflect the scale of the hazard: roofers are estimated to be five times more likely to suffer a fatal accident than workers in other sectors. The HSE's accumulated data on fatal falls from height in construction returns repeatedly to the same settings — domestic and commercial rooftops, often involving smaller businesses and self-employed sole traders, and sometimes involving workers who are not trained roofers at all.

Roof work accounts for approximately a quarter of all construction deaths — a proportion that has barely changed over the years for which reliable data is available. The three main causes of death and injury in roofing are consistent: falling from roof edges, falling through fragile roofs, and falling through fragile rooflights. Of these, falls through fragile materials account for more roofing deaths than any other single cause.

Key facts and figures

  • 5× roofers are estimated to be five times more likely to suffer a fatal accident than workers in other sectors.
  • ~25% of all UK construction deaths involve roof work.
  • 35 fatal falls from height across all industries in 2024/25 (HSE), with construction the largest share.
  • Over 50% of construction fatalities over 2020/21–2024/25 were falls from height.
  • 4.8× the construction fatal injury rate compared with the all-industry average.
  • 95% of construction fatalities are male; workers aged 60 and over are disproportionately represented.

Falls through fragile materials account for more roofing deaths than any other single cause, and many roofing fatalities involve workers who are not trained roofers — maintenance workers, general builders and others who access rooftops without specialist roofing training. The HSE notes that many deaths each year involve smaller builders working on domestic properties without edge protection. The legal framework for all of this work is set by the Work at Height Regulations 2005 and the HSE's guidance Health and Safety in Roof Work (HSG33).

The roofing industry's risk profile

Professional roofing — the installation, repair and maintenance of roofing systems — involves a combination of risks that few other trades face simultaneously.

Permanent height exposure. Unlike a construction worker who may spend parts of the day at ground level, a roofer's entire working day is typically spent at height. This means sustained exposure to fall risk throughout the shift.

Variable and unpredictable surfaces. Roofers work on surfaces that vary by material, age, condition and weather exposure. A brand-new fibre cement sheet behaves differently from a 30-year-old one; a dry asphalt flat roof offers very different grip to the same roof in rain. Roofers must continuously assess and adapt to changing surface conditions.

Fragile surface work. Unlike many height workers who operate on engineered platforms or walkways designed to bear human loads, roofers routinely work on building envelope materials designed to keep out water, not to support people — creating the specific and severe hazard of falls through fragile surfaces.

Weather dependency. All roof work is conducted outdoors. Rain reduces grip on every roofing material; wind exerts physical force on workers and materials and can prevent safe edge protection being maintained; ice makes any inclined surface treacherous; and strong sunlight reduces visibility and can cause heat-related impairment.

Working to tight timelines. Roofing contracts — particularly on domestic properties — are often priced to tight margins, creating pressure to work quickly rather than invest the time needed to properly erect edge protection and other fall-prevention measures.

The domestic roofing problem

The pattern of domestic roofing fatalities is one of the most consistently documented themes in UK workplace fatality data. The HSE specifically highlights “many deaths each year involving smaller builders working on the roof of domestic dwellings” — a pattern that exists for clear structural reasons.

No principal contractor oversight. On a domestic roofing job there is typically no principal contractor, no Construction Phase Plan and no multi-employer safety coordination. The roofer or small building company is the only employer on site.

Cost pressure. Domestic customers often select contractors primarily on price. A roofer who invests in proper scaffolding has higher costs than one who does not — creating competitive pressure that disadvantages safe working practices.

The “quick job” mentality. Many domestic roofing incidents involve jobs expected to take only a short time — replacing a handful of tiles, cleaning a gutter, repointing a ridge. A 30-minute job does not feel compatible with erecting scaffolding. But the risk of falling from an unsecured pitched roof is identical whether the job takes 30 minutes or 30 hours.

Client unawareness. Many domestic clients are unaware that their contractor is working without adequate fall protection, and do not realise they have obligations under the CDM Regulations and the Work at Height Regulations to ensure that contractors they appoint work safely.

The role of weather

Weather is a significant but frequently underweighted factor in roofing accidents. HSE guidance and construction industry research consistently identify it as a contributing factor in a substantial proportion of incidents.

Rain. Wet tiles, wet metal roofing and wet flat-roof membranes are significantly more slippery than dry surfaces. Falls on pitched roofs in rain conditions are disproportionately common.

Wind. Strong winds create direct physical force on workers and materials. Sheets of roofing material can catch the wind and become dangerous projectiles, workers can be destabilised by gusts, and safety nets and temporary edge protection can be undermined by wind loading.

Ice and frost. Any inclined surface becomes potentially treacherous when iced. Frost — particularly on north-facing or shaded roof slopes — may not be visible from below.

Employers are required to assess weather conditions before commencing roof work and to suspend work when conditions create unacceptable risk. The failure to suspend work during adverse weather is a recurring factor in roofing accident investigations.

Non-roofers on rooftops

A significant and consistent finding in UK roofing fatality data is that many victims are not trained roofers. The HSE notes this explicitly: “not all the people killed while working on roofs are trained roofers: many people accessing roofs are maintenance workers.”

Maintenance workers, building surveyors, pest control operatives, telecommunications engineers, solar panel installers, CCTV engineers and many other tradespeople regularly access rooftops as part of their work — without the roofing-specific training that would help them identify fragile surfaces, use crawling boards correctly, and apply the precautionary principle that all surfaces should be treated as fragile until proven otherwise.

This means effective roof safety is not solely the concern of the roofing industry. Any employer whose workers may access rooftops for any purpose has obligations under the Work at Height Regulations 2005 and must ensure those workers receive appropriate training for that specific hazard environment.

Related guides

Sources & references

Make sure everyone who accesses a roof is trained to work safely at height.

Train your team to work safely at height →
Mark McShane
Mark McShane
Working at Height & Health & Safety Training Specialist, Online CPD Academy

Mark writes about working at height, roof work risk and accredited online training for Working at Heights Course, part of Online CPD Academy.