When working near window penetrations and balconies, ensure all open gaps and penetrations from which a person can fall are protected. Use any of the following methods: first floor edge protection system timber railings installed at point of manufacture temporary stud installed by person erecting roof trusses guard railing system full perimeter scaffold. It is important that relevant workers are consulted to ensure that any locations designated for the landing of trusses will not overload the wall frames. The manufacturer/supplier must provide the necessary detail and instructions for the installation of prefabricated timber roof trusses. Where trusses have not been landed directly onto the top plates, a safe system of lifting the trusses to the upper level needs to be developed. At no time must any worker stand on the top plate to receive roof trusses passed up from below. Lifting roof trusses onto wall frame top plates for erection The erection of roof trusses involves both internal and external fall hazards. The erection of trusses may be undertaken from scaffold planks supported on internal wall top plates provided: planks are adequately supported across their spans, and no person is exposed to the risk of a fall into a stairwell or other void (i.e. a void protection system is installed). The person erecting trusses should assess the to handle the roof trusses. If the team’s capability size, weight and positioning of the roof trusses poses a risk to the health and safety of the person erecting the trusses, then a crane with a licensed operator should be engaged to help undertake this task. Method 1: Where cranage is required when erection height is too great or trusses too large for manual handling: the trusses must be craned into position, laid flat and suitably supported prior to erection. Where trusses cannot be self-supporting, use temporary props or internal walls for support (see Figure 15) the person erecting trusses must ensure that all wall frames are adequately braced to withstand loads during construction. Figure 15 Method of supporting long trusses Method 2: Where cranage is not required: smaller trusses for single storey roofs can be separated from the pack and lifted individually into position along the top plates, or if the truss needs to be repositioned, the person erecting the trusses should do this from below to avoid working at heights. Safe erection methods for roof trusses At no time is any person to stand on or work from an external wall top plate without suitable fall protection.
When working near window penetrations and balconies, ensure all open gaps and penetrations from which a person can fall are protected. Use any of the following methods: first floor edge protection system timber railings installed at point of manufacture temporary stud installed by person erecting roof trusses guard railing system full perimeter scaffold. It is important that relevant workers are consulted to ensure that any locations designated for the landing of trusses will not overload the wall frames. The manufacturer/supplier must provide the necessary detail and instructions for the installation of prefabricated timber roof trusses. Where trusses have not been landed directly onto the top plates, a safe system of lifting the trusses to the upper level needs to be developed. At no time must any worker stand on the top plate to receive roof trusses passed up from below. Lifting roof trusses onto wall frame top plates for erection The erection of roof trusses involves both internal and external fall hazards. The erection of trusses may be undertaken from scaffold planks supported on internal wall top plates provided: planks are adequately supported across their spans, and no person is exposed to the risk of a fall into a stairwell or other void (i.e. a void protection system is installed). The person erecting trusses should assess the team’s capability to handle the roof trusses. If the size, weight and positioning of the roof trusses poses a risk to the health and safety of the person erecting the trusses, then a crane with a licensed operator should be engaged to help undertake this task. Method 1: Where cranage is required when erection height is too great or trusses too large for manual handling: the trusses must be craned into position, laid flat and suitably supported prior to erection. Where trusses cannot be self-supporting, use temporary props or internal walls for support (see Figure 15) the person erecting trusses must ensure that all wall frames are adequately braced to withstand loads during construction. Figure 15 Method of supporting long trusses Method 2: Where cranage is not required: smaller trusses for single storey roofs can be separated from the pack and lifted individually into position along the top plates, or if the truss needs to be repositioned, the person erecting the trusses should do this from below to avoid working at heights. Safe erection methods for roof trusses At no time is any person to stand on or work from an external wall top plate without suitable fall protection.
preventing-falls-housing-construction.docx