Writing a Site-Specific Height Risk Assessment for Facade Work

Facade construction combines several high-risk activities in a narrow, changing work zone. Installers may be handling panels, glazing units, flashings, insulation and sealants while working from scaffolds, elevated work platforms, mast climbers or suspended access systems. A risk assessment must therefore explain how the actual building, site and sequence of work affect the possibility of a fall.

A useful document is more than a standard form with the project name added. It identifies the edges, openings, access points, weather exposure, lifting routes and temporary works that crews will encounter on that particular facade. It also connects those hazards with practical controls, responsible people and emergency arrangements.

For Australian projects, the assessment should sit alongside the project’s safe work method statement (SWMS), permit systems and broader construction safety plan. The detail may vary between a high-rise development in Sydney, a refurbishment in Melbourne or a commercial project in Brisbane, but the central objective remains the same: prevent a person, tool or facade component from falling and make recovery possible if controls fail.

Establish The Work Scope And Site Boundaries

Begin by describing the work in plain, specific terms. State whether the team will install rainscreen panels, composite cladding, curtain walling, windows, architectural glazing, soffits, roof-edge flashings or a combination of systems. Include the building elevation, levels, work stages, expected duration and the equipment involved. A facade contractor delivering an integrated envelope package may need to assess different risks for bracket installation, panel fixing, glazing and final sealing.

The document should identify what is inside and outside the assessment. Mark the elevation or grid references, loading zones, scaffold lines, exclusion areas, hoists, temporary access routes and adjacent trades. A site plan or annotated elevation is often more useful than several pages of general wording. BAK Cladding Solutions describes its work across commercial facade services, where this type of coordinated scope is especially important because cladding, roofing and glazing activities can overlap.

Record the people who may be exposed, including installers, crane crews, surveyors, electricians, other subcontractors, visitors and members of the public. On a live retail or residential site, pedestrians and residents may remain close to the facade, so the assessment must cover ground-level protection as well as fall prevention at the workface.

Inspect The Facade And Access Conditions

A site walkover should take place before controls are selected and again when work moves to a new elevation. Inspect slab edges, roof perimeters, balconies, penetrations, lift shafts, service risers, fragile surfaces and existing facade defects. Confirm whether guardrails are complete, whether anchor points have been certified and whether scaffold ties or brackets conflict with the proposed cladding system.

Access equipment must be matched to the building and task. An elevated work platform may provide good reach but require firm, level ground and adequate clearance from overhead services. A suspended platform may be affected by roof loading and tie-back arrangements. Rope access requires suitable anchors, competent technicians, rescue capability and a method that prevents pendulum falls. Do not describe equipment as available until its inspection, positioning and operating limits have been verified.

Consider the condition of existing buildings during refurbishment. A facade may contain deteriorated concrete, corroded fixings, brittle sheeting or undocumented alterations. Drilling near old panels and removing sections can create sudden instability. The risk assessment should state how the structure will be checked, who can approve changes and when work must stop for an engineering review.

Identify Fall And Falling-Object Hazards

List hazards by task and location rather than relying on broad labels such as “working at height”. For bracket drilling, consider unprotected slab edges, dust affecting vision, recoil from tools and awkward postures. For panel installation, assess manual handling at height, temporary restraint, wind loading and the possibility of a panel striking a worker or access platform. For glazing, include suction lifters, glass breakage, edge protection and the route from delivery point to final position.

Openings and temporary gaps deserve particular attention. A removed window, incomplete balustrade or lifted roof panel can create a fall path that did not exist during the previous shift. The assessment should specify covers, guardrails, barricades or physical restrictions, along with who checks them after breaks, deliveries and changes in access equipment.

Falling objects require a separate control strategy. Establish exclusion zones below the workface and consider adjacent elevations, footpaths, roads and neighbouring properties. Tool lanyards may be appropriate for compatible hand tools, but they do not replace toe boards, debris mesh, catch platforms or secure material storage. Define how panels, glass, fixings and waste will be raised, lowered and secured.

A practical assessment also considers less obvious contributors. Poor lighting can hide an edge, a wet scaffold deck can reduce footing, and a worker reaching outside a platform can change the equipment’s stability. Fatigue, rushed sequencing and conflicting instructions should be recorded where they could influence safe behaviour.

Apply The Hierarchy Of Controls

Start with the highest level of reasonably practicable protection. Can the work be completed from ground level by pre-assembling cassettes or using prefabricated facade modules? Can design changes reduce the number of times workers approach an exposed edge? Early design consultation and material specification can remove hazards before a project reaches installation, particularly when panel sizes, fixing positions and access clearances are still flexible.

Where work at height remains necessary, use collective controls before relying on individual protection. Permanent or temporary guardrails, compliant scaffold, edge protection, platform gates, catch decks and properly designed barriers protect several people at once. Personal fall-arrest systems should be considered only after safer options have been assessed, and the document must explain anchor locations, clearance, connection methods and rescue arrangements.

Controls need performance criteria, not just names. Instead of writing “use scaffold”, state that the scaffold will be erected by competent personnel, inspected before use and after alteration or severe weather, fitted with full decking and edge protection, and kept clear of unauthorised modifications. The same approach applies to EWPs, mast climbers, suspended platforms and roof access systems.

For Australian work, reference the relevant state or territory WHS requirements and applicable standards, including AS/NZS 1891 for industrial fall-arrest systems and AS/NZS 4576 for guidelines on scaffolding. The assessment should also align with manufacturer instructions, engineer-approved temporary works and the equipment inspection regime required by the project.

Account For Australian Weather And Local Conditions

Weather can change the risk profile quickly. In Sydney, exposed high-rise facades may experience strong gusts and sudden wind changes between street level and upper floors. In Melbourne, cold rain and rapid weather shifts can make platforms slippery and reduce visibility. Brisbane projects must plan for heat, humidity and sudden storms, while Perth coastal sites may combine strong winds with salt exposure that affects temporary metal components. These conditions should be linked to measurable stop-work limits rather than vague statements about “bad weather”.

Set out how supervisors will monitor forecasts, wind readings, lightning alerts, heat conditions and platform surfaces. Define when panels, glazing units or long flashings cannot be lifted, when access equipment must be lowered or secured, and who authorises a restart. After a storm, inspect scaffold, guardrails, anchors, covers, debris screens and stored materials before allowing access.

The local setting also affects the public interface. A project in central Sydney or Melbourne may have narrow footpaths, tram routes, active retail frontages and delivery restrictions. A residential tower in Gold Coast or Brisbane may have residents using balconies and entrances throughout the day. The assessment should coordinate hoarding, traffic control, delivery windows, spotters and communication with building management.

Coordinate Workers, Trades And Equipment

Every person involved should understand the controls that apply to their task and the limits of the access system. Induction and pre-start briefings should cover access routes, exclusion zones, rescue arrangements, weather triggers and reporting of damaged equipment. Workers must know who can stop the job and how a change is escalated when the planned method no longer matches site conditions.

Facade work often depends on several teams acting in sequence. A crane lift may pass near a scaffold, a glazing crew may require an opening that another trade has protected, or a roofer may remove guardrails needed by cladding installers. The risk assessment should identify handover points and make clear that barriers, anchors and covers cannot be moved without approval and replacement.

Plant and materials need their own coordination controls. Confirm platform capacities, outrigger zones, load limits, lifting plans and the location of stored panels. Keep access ways clear and prevent materials from being stacked near unprotected edges. Where a panel or glass unit is too large for safe manual handling, specify mechanical aids, tag lines, trained operators and a controlled landing area.

A contractor with experience across the building envelope can help connect these interfaces. BAK Cladding Solutions presents its integrated envelope approach around design, specification, installation and handover, which reflects the coordination needed when roofing, cladding and architectural glazing meet at the same workface.

Define Emergency And Rescue Arrangements

A fall-arrest system does not make a task safe unless a suspended worker can be recovered quickly. The assessment should describe the rescue method, equipment, trained rescuers, communication route and access for emergency services. It should account for the actual location of the worker, including a scaffold bay, EWP basket, roof edge, suspended platform or rope access line.

Avoid relying solely on external emergency services for a planned rescue. Their response may be delayed by traffic, site access restrictions or the height and configuration of the building. A rescue plan should state how the area will be isolated, how suspension trauma will be addressed, how equipment will be retrieved and how first aid will be provided while the person is brought to a safe location.

Include arrangements for non-fall emergencies too. Glass breakage, electric shock, equipment entrapment, severe weather, dropped objects and sudden facade movement may require different responses. Display emergency contacts and site access details where crews can find them, and verify that radios or mobile phones work from the upper levels and inside screened work areas.

The assessment should also explain what happens after an incident or near miss. Stop the affected activity, preserve relevant equipment where safe, notify the required parties and review whether the method, access arrangement or exclusion zone needs to change before work restarts.

Review And Maintain The Assessment

A site-specific risk assessment is a live control document. Review it when the work moves between elevations, the facade design changes, access equipment is replaced, a new subcontractor joins the project or an incident reveals an unrecognised hazard. A change from scaffold to EWP, for example, can alter ground stability, reach, rescue methods and the location of exclusion zones.

Use inspections and briefings to test whether the written controls operate in practice. Supervisors should check edge protection, access gates, anchor points, platform condition, debris containment, tool security and weather-related damage. Record findings, corrective actions, responsible persons and completion dates rather than simply signing that an inspection occurred.

The installation sequence should be reflected in the document. A useful cladding installation guide can help explain the broader order of surveying, setting out, fixing, panel placement and finishing, but the project assessment must still address the actual building, equipment and crew. Generic guidance cannot replace a site inspection or a task-specific SWMS.

At handover, retain the assessment, inspection records, permits, equipment certificates, rescue drills and records of changes. This evidence demonstrates that the project team considered the real conditions at the facade rather than treating working at height as a routine phrase. It also provides a valuable reference for maintenance teams who may later access the roof edge, glazing or cladding system.