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Step-By-Step Process for Fall Protection & Trusses - DRAFT


Alternate Fall Protection Plan Template
SBCA has created a customizable template for the structural building components industry, which includes links to the specific steps contained in this online approach to erecting an initial truss system.
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During the installing, application of lateral restraint/diagonal bracing and/or sheathing of the initial group of trusses, conventional fall protection may be infeasible, or present a greater hazard to workers, because of the following risks:

  1. Trusses are very unstable prior to being properly braced or sheathed.
  2. Tying off to trusses in the early stages of construction can easily cause a greater hazard given that a fall may pull the truss or trusses down with the fall. This is particularly true if the worker is depending on the tie-off to the trusses to protect him/her from a fall.
  3. There may be greater hazard in trying to tie off to some portion of the roof system as the initial trusses are being set, than working to get the initial group of trusses, usually 3 to 5 trusses in a set, properly braced.
  4. Reaching the top chord to apply lateral restraint/diagonal bracing and/or sheathing while maintaining fall protection is the ultimate challenge, and in trying to do this safely, a greater hazard may easily be present.

When setting a truss system, a stable set of trusses must be established. The following graphics provide three typical options for providing a set of trusses that could be tied off to safely.

Figure B2-31 The graphics show 3 options that can be described as follows:

  1. The first 5 trusses braced per the Building Component Safety Information (BCSI) chapter B2 entitled Truss Installation & Temporary Restraint/Bracing.
  2. The first 5 trusses are sheathed as they are set initially.
  3. The first 5 trusses are sheathed on the ground and then hoisted into place.
  4. Once the trusses are installed in a manner similar to this, they can then act as an attachment point for commercial fall protection devices.
Figure B2-48

The challenge in setting the first 3 to 5 trusses is:

  1. The feasibility of doing this and providing satisfactory fall protection.
  2. Not having the fall protection system create a greater hazard in getting these first 4 to 5 trusses set.

WARNING: Any part of an inadequately braced or sheathed truss system used as an anchorage point for any type of personal fall arrest system is dangerous and will increase the risk of serious injury or death.


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