Trèteaux Angles: SR4Ba-DP
SR4Ba-DP = Prism Footprint Angle in Plan View at Intersection of DP Line and Profile Rafter Footprint Line in Plan View
Hip-Valley Roof Ratios Angle Formulas
- SR4Ba-DP = arccos( cos(90 + Jack Rafter Side Cut Angle) × cos(R8))
- SR4Ba-DP = arccos( cos(90 + P2m) × cos(R8))
The Trèteaux Angles Formulas for Hip Rafters Rotated into the Roof Surface Plane were developed by Sim Ayers and Joe Bartok.