A roof truss is a prefabricated frame comprising of one or more triangular units constructed between a bottom and top chord.
- The ends of a roof truss are connected at joints commonly referred to as nodes.
Tasks associated with erection, positioning, fixing, bracing and tying down of roof trusses include:
- Planning and set out of roof trusses, beams, etc;
- Pre-operational inspection of plant used to cut timber materials;
- Operation of plant for the cutting of timber materials;
- Working at heights erecting, positioning and fixing roof trusses;
- Lifting and positioning of roof trusses using a crane and potentially within an established exclusion zone for an overhead electrical service or electrical part;
- Erection, securing, bracing and tying down of roof truss components;
- Fixing and bolting of roof truss components;
- Inspection of completed roof truss system;
- Ergonomic issues with handling of roof truss components;
- Selection and use of personal protective equipment;
- Compliance with specific controls as per a regulation, code of practice;
- Assess the risk to workers erecting, positioning, fixing, bracing and tying down roof trusses
Safety procedure includes
Control measures to eliminate or minimise the risk of death, serious injury or illness to persons are addressed in the safe work method statement as per the following sections.
- Consultation with workers.
- Generation of hazards.
- Planning, set out, position, location, etc of the roof trusses to be erected.
- Pre-operational inspection of plant to ensure it is in good order.
- Selection and inspection of cutting blade.
- Cutting of timber materials.
- Working at heights requiring an EWP, fall arrest system, etc.
- Working in an established exclusion zone for an electrical part.
- Lifting of roof trusses using a crane.
- Selection of lifting gear.
- Erection, securing and temporary guying of roof trusses.
- Connection and bolting of roof truss components.
- Fixing, bracing and tie down of roof trusses.
- Ergonomic issues identified with the erection, positioning, bracing and fixing of roof trusses.
- Controls when handling, decanting or using a hazardous chemical, substance or product.
- Hazardous manual tasks.
- Personal protective equipment requirements.
- Training requirements.
- Housekeeping requirements.
- Compliance with specific controls imposed by a regulation or code of practice.
- Failure to monitor controls.
- Risk matrix and descriptors.
- Additional hazards, risks and controls.
- Approval and change management form.
- Sign-off for carpentry services - Erection of roof trusses.