Weekend DIY projects feel like the perfect way to get things done around the home, but for one Brisbane tradie, a quick job turned into a life-changing accident.

According to a report from Yahoo News, Brandon Ford was on the roof of his rental property when he decided to give the rooftop a wash after fixing a leak. Despite his wife warning him about the dangers, Brandon slipped and fell, suffering 28 fractures. His story is a stark reminder that roof cleaning, even for experienced tradespeople, carries serious risks that homeowners should never underestimate.

The team at Jet Set Pro takes safety seriously, which is why we have outlined the top dangers of roof cleaning. Read further to understand the dangers and the value of expert support.

1. Slip and Fall Accidents

Roof cleaning is one of the leading causes of fall-related injuries, even among trained professionals. SafeWork NSW reports serious accidents every year from roof and ladder falls, some resulting in life-altering injuries or fatalities. In one widely reported case, a worker fell more than eight metres through a roof void and suffered severe injuries, despite being on a supervised job site.

Safety Measures Experts Use on Every Roof Job

  • Use of safety harnesses and fall arrest systems to prevent serious injuries in case of a slip.
  • Wearing non-slip roof shoes designed for grip on wet surfaces.
  • Setting up scaffolding, guard rails, or safety nets, where required, for added protection.
  • Performing a site risk assessment before starting, identifying weak points, voids, fragile tiles and degree of pitch
  • Following WorkSafe QLD standards and industry guidelines for working at heights.
  • Working methodically and adhering to company SWMS for each work task.

2. Roof Damage from Improper Techniques

High-pressure washing, abrasive scrubbing, or the wrong cleaning chemicals can strip away protective coatings, crack tiles, or loosen shingles. Many roofing products come with manufacturer warranties that require specific cleaning methods. Using high water pressure or harsh chemicals can void these warranties, leaving you unprotected if future problems arise.

Risks of DIY Cleaning Across Roofing Types

Type of Roof Risks 
Terracotta Tiles Fragile and porous. Easily chipped by high-pressure washing, and may absorb harsh chemicals.
Colourbond (Metal Roofing) Strong but can lose its protective coating if blasted with pressure.
Concrete Tiles Granule surfaces can be stripped away by strong chemicals.
Slate Roofing Durable and long-lasting, but the tiles are brittle and can crack easily under high water pressures.

How Experts Clean Without Causing Damage

  • Use cleaning methods suited to each roof type.
  • Accurately prepare and mix cleaning solutions and chemicals according to the requirements of each task.
  • Prevent and manage runoff from cleaning solution applications to minimize environmental impact.
  • Calibrate pressure washers to avoid stripping coatings or eroding surfaces.
  • Limit foot traffic and use proper access equipment to prevent cracked tiles.

3. Electrical Hazards

NSW Gov shares that roof and ceiling spaces contain live electrical wiring that can pose hidden dangers during cleaning or repair work. These sources of electricity can include:

  • Wiring that runs through the ceiling but supplies power to another part of the property, such as an extension, garage, granny flat, or duplex.
  • Wiring connected to solar panels or battery storage systems, which can carry live current even when the main power is off.
  • Wiring that links the property to the street supply, connecting overhead service lines to the electricity meter box.

How Experts Work Safely Around Electrical Hazards

  • Identify and confirm all possible electrical sources before starting any work. Assess risks that may arise when isolating power to the property.
  • Switch off power at the main meter box and use lock-out tags to prevent accidental re-energisation.
  • Double-check that power is off by testing lights, appliances, and wiring with voltage testers.
  • Follow the “Test Before You Touch” principle to confirm circuits are safe before handling them.
  • Solar and battery systems do not fully power down when the mains are disconnected. Even with the inverter isolated, the cables connecting panels to the inverter remain live.
  • Understand that switching off at the meter box does not cut supply from street lines.

 

4. Exposure to Chemicals and Mould

Roof cleaning involves harsh chemicals designed to kill moss, lichen, and mould. While effective, these substances can cause skin burns, eye irritation, and respiratory problems if handled incorrectly.

Strong Chemicals in Roof Cleaning

  • Chlorine Bleach
  • Ammonia or Acid-Based Cleaners
  • High-Concentration Biocides

Jet Set Pro experts use full protective gear to stay safe when handling chemicals and mould during roof cleaning. Our team wears respiratory masks, gloves, and protective eyewear to block fumes, splashes, and skin contact. We apply cleaning solutions with controlled methods, such as low-pressure spraying, to minimise airborne particles and safeguard your roof.

5. Insurance and Liability Risks

DIY roof cleaning looks like an easy way to save money, but the hidden risks can cost far more in the long run. Homeowners may face denied claims and voided warranties. Many roofing materials in Australia come with warranties that require specific care.

For instance, Monier provides a 50-year warranty on its terracotta and concrete tiles when handled by qualified installers. According to their warranty document, these situations can void these warranties:

  • Any damage caused by people other than approved installers (e.g., DIY cleaning or walking on the roof) can void the warranty.
  • Using unsuitable chemicals, excessive pressure washing, or abrasive tools may be considered improper treatment.
  • Cracked tiles caused by foot traffic, falling objects, or careless handling are not covered.
  • Faults caused by external modifications, such as incorrect frame design or additional structures, can also void coverage.
  • Applying non-approved coatings, clips, or accessories can invalidate warranty terms.

How Jet Set Pro Saves You Time, Money & Risk

Jet Set Pro sets itself apart by using cleaning solutions that are both powerful and environmentally responsible. Their products contain a unique blend of biodegradable surfactants that are non-caustic, non-acidic, and free from bleach. This means they are safe for any exterior surface while remaining tough on moss, algae, lichen, mould, and mildew. Just as importantly, their cleaning process protects Gold Coast waterways from harmful runoff.

Jet Set Pro provides peace of mind by carrying up to $20 million in public liability insurance, along with work cover insurance for its team. This means that if unexpected incidents occur during a roof cleaning job, both the customer and the workers are fully protected.