A rafter birdsmouth is cut so deep that very little material remains over the bearing. What should be checked?
Correct Answer
C) Rafter capacity.
Excessive notching at bearing can weaken the rafter and requires an approved framing detail.
Why This Is the Correct Answer
Excessive notching at bearing can weaken the rafter and requires an approved framing detail.
Why the Other Options Are Wrong
Option A: Construction loading.
Construction loading. relies on the wrong note, symbol, sheet, scale, or detail path for rafter notching.
Option B: Decay protection.
Decay protection. relies on the wrong note, symbol, sheet, scale, or detail path for rafter notching.
Option D: End treatment.
End treatment. relies on the wrong note, symbol, sheet, scale, or detail path for rafter notching.
Memory Technique
Rafter Notching trail for Checking Roof: note to schedule to detail, then field action.
Reference Hint
Study anchor (closed-book): memorize Rafter notching from California Residential Code, California Code of Regulations Title 24. / Title 24 California Residential Code rafter notching and bearing concepts; know the rule or calculation trigger without relying on exam-room lookup.
More Class B Trade Questions
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