Trèteaux Angles: PSBm-DP
PSBm-DP = Prism Footprint Saw Blade Bevel Angle Along side of Hip Rafter Rotated into the Roof Surface Plane at Foot Of Hip Rafter
Hip-Valley Roof Ratios Angle Formulas
- PSBm-DP = arctan( sin(90 - Jack Rafter Side Cut Angle) × tan(R8))
- PSBm-DP = arctan( sin(90 - P2m) × tan(R8))
The Trèteaux Angles Formulas for Hip Rafters Rotated into the Roof Surface Plane were developed by Sim Ayers and Joe Bartok.