Unadjusted Valley Length
75 ÷ (sin 56.30993° × cos 29.01714°) = 103.07764
Valley Rafter Length Adjustment from Dimensions in Plan
Valley Rafter Length Adjustment from Dimensions on the Plane of the Roof
Dimensions on the Plane of the Roof as viewed in Plan
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Since the 72.75 adjusted length in plan is the same along the header centerline (parallel to the 12/12 ridge line)
the adjusted Valley length may be solved directly in terms of the Main Roof Jack Rafter Side Cut Angle
72.75 ÷ sin 46.68614° = 99.98532 |
