Trèteaux Angles: P18a-DP
P18a-DP = Adjacent Side Jack Rafter Bevel Angle on DP Side Of Hip Rafter on Face Set in Roof Surface
Hip-Valley Roof Ratios Angle Formulas
- P18a-DP = Jack Rafter Side Cut Angle
- P18a-DP = P2a
The Trèteaux Angles Formulas for Hip Rafters Rotated into the Roof Surface Plane were developed by Sim Ayers and Joe Bartok.