Trèteaux Angles: P7m-DP
P7m-DP = Main Side Purlin Rafter Bevel Angle on Side Set in Roof Surafce
Hip-Valley Roof Ratios Angle Formulas
- P7m-DP = 90 + Jack Rafter Side Cut Angle
- P7m-DP = 90 + P2m
The Trèteaux Angles Formulas for Hip Rafters Rotated into the Roof Surface Plane were developed by Sim Ayers and Joe Bartok.