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  BU617 Subloor and roof bracing in NZS 3604:2011 buildings

Wind and earthquakes can generate significant forces on a building. 

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Bracing demand must be calculated and sufficient bracing incorporated into a building so that the structure can withstand these forces.

This bulletin describes the bracing for subfloors and roofs of buildings within the scope of NZS 3604:2011 Timber-framed buildings.

This bulletin covers: 

  • General considerations
  • Subfloor bracing
  • Roof bracing 
  • Bracing ratings for renovations or repairs