Metal Siding Installation SWMS

Metal siding installation involves the fixing of profiled steel, aluminium or zinc-coated cladding sheets to the external envelope of commercial, industrial and residential structures. The work is performed from scaffolds, elevating work platforms (EWPs), ladders and occasionally roof edges, and involves handling long, unwieldy sheets with sharp swarf edges, using powered fastening tools, and working at height in variable wind conditions. The combination of fall exposure, sheet handling in wind, cut hazards from unprotected edges, and noise and manual handling loads makes this a materially high-risk activity where a single lapse commonly results in serious injury or fatality.

Under the Work Health and Safety Regulation 2025 (NSW), metal siding installation is high risk construction work under section 291(a) where any person could fall more than 2 metres. Section 299 requires a Safe Work Method Statement to be prepared before the work commences, kept available for inspection, and complied with. Controls follow the hierarchy in section 36 — eliminate the fall risk where reasonably practicable, otherwise implement passive fall prevention (scaffold, edge protection), then work positioning and fall arrest as a last resort.

Hazards identified

12 hazards covered, sorted by priority.

Control measures

Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.

1. 1Eliminate work at height where practicable by pre-assembling wall panels at ground level and lifting complete modules into position with a crane and certified rigging
2. 2Where elimination is not practicable, provide a compliant perimeter scaffold or EWP as the primary work platform in preference to ladders — scaffolds erected and inspected in accordance with AS/NZS 1576 and AS/NZS 4576, EWPs operated by holders of the relevant HRW Licence (WP) where boom length exceeds 11 m and inspected to AS 2550.10
3. 3Install passive edge protection (guardrails, mid-rails and toe boards) to AS/NZS 4994 on all open edges at or above 2 m before siding work commences; where edge protection is not feasible, deploy a fall-arrest system with anchorage, connector and full-body harness compliant with AS/NZS 1891.1-1891.4 and a documented rescue plan
4. 4Establish and maintain minimum safe approach distances from overhead powerlines in accordance with SafeWork NSW guidance; where distances cannot be maintained, arrange isolation or tiger-tail insulation with the network operator before work begins
5. 5Control wind exposure — cease sheet handling above height when wind speed exceeds the manufacturer's stated limit or 36 km/h (whichever is lower); measure with an on-site anemometer and record readings in the daily prestart
6. 6Establish drop zones and no-go exclusion areas below the work face using hard barricades and signage; use tool lanyards on all hand tools taken above 2 m and hoist sheets in bundled, secured loads rather than free-handing
7. 7Control respirable crystalline silica by using shadow-line jointing, shears or nibblers in preference to abrasive cutting; where cutting of fibre-cement or masonry is unavoidable, apply on-tool water suppression or H-class LEV, and enforce the 0.05 mg/m³ workplace exposure standard under section 49 of the WHS Regulation 2025 (NSW)
8. 8Before disturbing any pre-2004 wall substrate, review the asbestos register (section 425) and, if ACM is present or presumed, engage a licensed asbestos removalist under sections 458-460 — do not proceed with unassessed demolition of existing sheeting
9. 9Provide mechanical handling aids (panel lifters, vacuum lifters, scissor hoists) for sheets exceeding 16 kg or 3 m in length; limit two-person carries to short distances on level surfaces and rotate crews to manage fatigue
10. 10Issue and enforce task-specific PPE to AS/NZS 2210.3 (safety footwear), AS/NZS 1337.1 (eye protection with side shields for swarf), AS/NZS 2161.3 (Level 5 cut-resistant gloves), AS/NZS 1270 (Class 5 hearing protection when using powered fasteners), and AS/NZS 1716 P2 respirators where dust exposure cannot be otherwise controlled
11. 11Test and tag all electrical leads and tools every 3 months to AS/NZS 3012 for construction environments, and supply all 240 V power through a portable RCD
12. 12All workers to hold CPCCWHS1001 (White Card); the SWMS is to be developed in consultation with workers under section 47 of the WHS Act 2011 (NSW), signed on prior to commencement, and reviewed under section 302 of the WHS Regulation 2025 (NSW) whenever controls are found inadequate, the work method changes, or a notifiable incident occurs

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

A cladding contractor is engaged to install 0.55 mm Colorbond® corrugated wall sheeting to a two-storey warehouse in Wetherill Park. Working heights range from 3.2 m at the dado to 8.4 m at the parapet. The contractor eliminates ladder work by hiring a 16 m knuckle-boom EWP and erecting a modular scaffold to the two long elevations. Sheets (6.1 m lengths) are hoisted in banded packs of five with a crane, landed onto the scaffold and fixed with self-drilling screws. The SWMS records a wind cut-off of 32 km/h based on manufacturer guidance, a 3 m exclusion zone below the work face, RCD-protected 240 V leads for the seaming tool, and Level 5 cut gloves for all sheet handling. Before commencement, the SWMS is signed on by the four installers and the site supervisor, and reviewed after week one when the crew requests a change from screw guns to a pneumatic sealer for capping.

Related legislation

• Work Health and Safety Act 2011 (NSW) — sections 19, 31, 32, 47
• Work Health and Safety Regulation 2025 (NSW) — sections 78-79 (falls), 291, 299, 302
• Work Health and Safety Regulation 2025 (NSW) — sections 49-50 (silica exposure standard)
• Work Health and Safety Regulation 2025 (NSW) — Chapter 8 (asbestos), sections 425, 458-460
• Environmental Planning and Assessment Act 1979 (NSW) — where the work forms part of a notifiable development
• Electricity Supply (Safety and Network Management) Regulation 2014 (NSW) — powerline approach distances

Frequently asked questions