WTCA Update:Application of Non-concurrent Attic Loads & Presentation on Truss Drawings

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WTCA Update:Application of Non-concurrent Attic Loads & Presentation on Truss Drawings

  • The IBC and IRC 10 psf attic live load is a non-concurrent live load applied as one of the load conditions that are checked when designing trusses.
  • The IBC and IRC 20 psf attic storage load shall be applied only in areas intended for storage as clearly identified on the truss design drawings.
  • A note will be placed on the truss design drawings identifying the storage load that was applied to the trusses.
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2005 March

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