Sheathing versus Purlins
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Sheathing versus Purlins
- BCSI-B2 provides temporary bracing guidance for trusses spaced up to 24 inches on-center.
- BCSI-B10 offers temporary bracing guidance for wide on-center trusses such as those used in post frame buildings.
- Truss Designers note on Truss Design Drawings that truss top chords must be laterally braced by the roof sheathing to prevent the top chord from buckling.
- When purlins are specified, check with the Truss Designer to determine the maximum unbraced length of the top chord between purlins to avoid top chord buckling.
2006 May