Floor Live Load Deflection Limits for Room-In-Attic Trusses

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Floor Live Load Deflection Limits for Room-In-Attic Trusses

  • Deflection limits for trusses with habitable spaces differ depending upon the building code.
  • The 2009 IRC references TPI 1-2007; it defines a live load deflection limit of l/360 for these trusses.
  • TPI 1-2002, which the 2006 IRC references, does not contain a live load deflection limit.