SWMS template · Demolition

Shed and Outbuilding Demolition — Safe Work Method Statement

Safe Work Method Statement for demolishing backyard sheds, garages, carports and small outbuildings, including asbestos checks, service disconnection, roof sheet removal, frame dismantling and slab or footing removal.

Category
Demolition
HRCW
3 categories
Job steps
6
Hazards rated
17
PPE items
8

Pulling down a shed or old garage is often treated as a weekend job, but it has many of the same hazards as house demolition. Removing roof sheets usually involves a risk of a person falling more than 2 metres, and taking down the frame is demolition of load-bearing elements. Both are High Risk Construction Work. Older sheds also very often contain asbestos, which adds a third HRCW category, so a SWMS is required.

Asbestos is the first thing to check. Fibro wall and roof sheets, corrugated asbestos cement roofing, eaves linings and old floor tiles were common in sheds and garages built before 1990. Removing more than 10 square metres of non-friable asbestos needs a licensed asbestos removalist, and friable asbestos always needs a Class A licensed removalist. Under 10 square metres can be removed without a licence, but it must still be done safely following the code of practice. If you are not sure whether it is asbestos, have it tested before touching it.

The other key hazards are partial collapse of the frame once bracing or sheets are removed, roof sheets catching wind, falls through brittle or rusted roofing, rusted fixings and sharp sheet edges, and services that are still live. Sheds often have a power supply run from the house, sometimes overhead, as well as water and gas. Have a licensed electrician disconnect power at the source. Before breaking out slabs or digging out footings, get Before You Dig Australia (BYDA) information and check for services running under or near the slab.

Licensing for demolition work differs between states and may depend on the size of the structure. Check your state or territory regulator, and check with your council whether a demolition permit is needed. Workers need training in the equipment used, and any excavator, skid steer or tipper operator must be competent.

Customise this template with the shed size and construction, the asbestos test results and removalist details, services and their disconnection, the demolition sequence, the access method for the roof, exclusion zones and neighbour boundaries, whether the slab and footings are to be removed, and the waste and recycling arrangements.

High Risk Construction Work Types

  • Risk of a person falling more than 2 metres
  • Demolition of an element of a structure that is load-bearing or related to its physical integrity
  • Work that involves, or is likely to involve, disturbing asbestos

Personal Protective Equipment

  • Hard hat
  • Safety boots (steel capped)
  • Cut-resistant gloves
  • Safety glasses
  • P2 respirator; disposable coveralls if asbestos is present
  • Hearing protection for grinders and breakers
  • Long sleeves and trousers
  • High visibility vest when plant is operating

Risk Assessment

RatingsCatastrophicHighModerateLow

Step 1Inspection, asbestos check and service disconnection

Hazard / RiskInitial RiskControl MeasuresResidual RiskResponsibility
Disturbing asbestos sheetingCatastrophicInspect all sheets, linings and floor coverings. Have suspect materials tested. Over 10 square metres of non-friable asbestos removed by a licensed removalist; friable asbestos by a Class A removalist. No demolition until asbestos is removed or confirmed absent.LowSupervisor
Electric shock from live power to the shedCatastrophicLicensed electrician disconnects the supply at the house switchboard or source and removes any overhead or underground feed. Test before work. Lock and tag.LowLicensed Electrician
Water or gas services still connectedModerateLicensed plumber caps water, drainage and gas. Confirm before demolition.LowLicensed Plumber
Snakes, spiders and vermin in stored items and wall cavitiesModerateClear contents carefully with gloves. Use tools to move items rather than reaching by hand. First aid kit with pressure bandages on site.LowWorkers

Step 2Setting up the site

Hazard / RiskInitial RiskControl MeasuresResidual RiskResponsibility
Public, occupants or neighbours entering the work areaHighFence or barricade the work area with an exclusion zone at least equal to the height of the shed. Signs on entries. Agree work times and boundary access with neighbours.LowSupervisor
Plant striking people or structuresHighPlan the plant and skip bin access. Spotter when reversing. Keep plant clear of fences, trees and overhead lines.LowSupervisor / Plant Operator

Step 3Removing roof sheets and gutters

Hazard / RiskInitial RiskControl MeasuresResidual RiskResponsibility
Fall through brittle or rusted roofingHighRemove roof sheets from below using a mobile scaffold or EWP where possible. Do not walk on the roof unless it has been checked and walk boards are used over purlins. Treat clear sheets as no-go.LowWorkers
Fall from the roof edge or ladderHighUse a mobile scaffold or EWP for roof sheet removal. Ladders only for access, footed or tied and extending 1 metre above the landing.LowWorkers
Sheets catching wind and cutting or striking workersHighNo sheet removal in strong or gusty wind. Two workers per long sheet. Stack and weight down removed sheets straight away.LowSupervisor / Workers

Step 4Dismantling the wall cladding and frame

Hazard / RiskInitial RiskControl MeasuresResidual RiskResponsibility
Frame collapsing once bracing and sheets are removedHighDismantle in the reverse order of construction, top down. Prop or brace the frame as sheets come off. Do not cut posts or bracing while anyone is inside or under the frame. Pull down any remaining frame from outside the collapse zone using ropes or plant.LowSupervisor
Cuts and eye injuries from grinding rusted fixingsModerateSafety glasses and face shield when grinding. Guard fitted to the grinder. Gloves and long sleeves. Fire extinguisher nearby when grinding near dry grass.LowWorkers
Manual handling of steel or timber membersModerateCut long members into manageable lengths. Team lift for heavy members. Keep the work area clear of trip hazards.LowWorkers

Step 5Breaking out the slab and footings

Hazard / RiskInitial RiskControl MeasuresResidual RiskResponsibility
Striking buried services under or near the slabHighGet BYDA information and check private services from the house. Locate services before breaking. Pothole by hand or vacuum excavation near marked services.LowSupervisor / Plant Operator
Silica dust and noise from breaking concreteHighWet the slab while breaking. Fit-tested P2 respirator. Hearing protection. Keep others out of the area.LowWorkers / Plant Operator
Hand-arm vibration from jackhammersModerateUse plant-mounted breakers for larger slabs. Rotate jackhammer operators and limit continuous use.LowSupervisor

Step 6Waste handling and site clean-up

Hazard / RiskInitial RiskControl MeasuresResidual RiskResponsibility
Asbestos mixed into general wasteHighKeep asbestos waste wrapped, labelled and separate. Dispose only at a facility licensed to accept it and keep receipts. Do not put asbestos in general skips.LowSupervisor
Nails, screws and sharp offcuts left on the groundModerateSweep the area with a magnetic sweeper. Fill holes left by footings. Final walk-through before handover.LowWorkers

Relevant Codes of Practice

Worker Acknowledgement

By signing below, I confirm that I have read, understood and agree to comply with this Safe Work Method Statement.

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