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Carpenter Red Seal Exam Prep · Question

Which component is NOT typically considered part of a roof truss system?

Purlins are typically part of conventionally framed roofs, supporting rafters or roof sheathing. Trusses are engineered as complete units with top and bottom ch

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Question: Which component is NOT typically considered part of a roof truss system?

Answer options:

  • The top chord
  • The bottom chord
  • The web members ✅ The purlin

Correct answer: The purlin

Explanation: Purlins are typically part of conventionally framed roofs, supporting rafters or roof sheathing. Trusses are engineered as complete units with top and bottom chords and web members forming a rigid structure.

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