Temporary Bracing Roof Trusses

Start with the gable end truss.

Temporary bracing roof trusses.

It is important to accurately plumb the first truss and to brace it substantially since additional trusses rely on the first one for stability and alignment. The truss bracing designs at the contract stage of the project. Roof sheathing plywood osb provides effective lateral bracing when sheathing is nailed directly to top chords. Trusses which are not braced or which are not braced correctly are subject to toppling over or collapse.

Bracing of trusses is extremely important. All bracing must be of 2x material. It is the restraint placed in the trusses at the time of truss erection. Bracing must be provided to enable the roof wall and floor framework to resist the horizontal forces.

Right from the first truss each and every subsequent truss must also be safely secured before continuing. It should be noted that any qualified registered professional can assume the role of temporary and permanent bracing designer for the project. Properly installed temporary bracing dramatically increases the stability of the erected trusses and provides workers with a stiff platform to work from. Install top chord diagonal bracing and web member diagonal bracing to form triangles perpendicular to the plane of the truss.

Use wooden 2x4 or prefabricated metal braces as short member temporary lateral restraints between the trusses. It is very important that the contractor or homeowner responsible for truss erection read through all documents inside the job packet. Bracing used to hold framework in a safe condition during construction until enough permanent construction has been put in place to provide complete stability. It may also be used to facilitate truss installation by reinforcing them against the different stresses induced during lifting or staging.

Temporary restraint is often kept in the structure and allowed to double as permanent restraint. The industry standard is 9 to 10 feet for temporary truss bracing spacing trusslox spreader bars at top chord s to reduce bowing of truss member s. Often several trusses or even an entire section of roof or floor may be connected together and lifted in place. Trusslox temporary truss bracing system is designed to secure roof trusses 24 on center.

This condition generally applies when trusses are spaced at 2 feet. An appropriate connection is needed to transfer these forces through the framework and sub floor structure to the building s foundation. Hold these restraints in place with two nails each. Bracing of top chords sloping top chord of roof trusses must resist compression force due to gravity downward load on the roof such as snow load.

Developed by steve ventling a contractor inventor since 1976 steve was driven by necessity to find a device that would easily secure his building roof trusses in place.