 Printer EmailTrusses have very little lateral strength or resistance to lateral (side) loading. This is the primary reason for truss failures and collapse. prior to the trusses being properly secured, braced and sheathed, they are often subjected to lateral loads which can result failure of the truss system. The major causes of these failures are. It is essential that all necessary erection and bracing instructions, in written form, are available at the worksite, prior to beginning truss erection. The truss erection contactor must install the trusses in accordance with the manufacturers information and any instructions of a professional engineer. In addition, all workers must be instructed in the proper method of erecting the wood trusses, based on the documentation. This includes the methods of hoisting, sequence of erection, bracing and connection details, loading limitations and any other relevant information. Truss erection must be undertaken under the direct supervision of a skilled supervisor. Only workers directly involved in the truss erection work shall be in the area. The safe erection of wood truss systems is dependent on: Download Guidelines (source: http://www.pahi.org/) This is a video of steel roof truss erection. The video is provided by
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