Irregular Hips Roof Framing Geometry

Strong Built Establishments Builders

SBE Builders is a commercial and residential framing contractor located in Discovery Bay California. Our Systematic Construction Logic produces Strong Built Establishments.

Irregular Hips Geometry
based on Joe Bartok's Hip Roof Developmental Geometry

Major Rafter Pitch	Or Major Pitch Angle	Minor Rafter Pitch	Or Minor Pitch Angle	Building Span	Building Length
				feet inches frac	feet inches frac
Common Rafter Width	Hip Rafter Width	Ridge Width	Plate Width	Rafter O.C. Spacing	Major Rafter Pitch Overhang	Show Feet Inches

Download Irregular Hip Rafter Geometry DXF
Irregular Hip Geometry Framing.dxf -- auto generated DXF CAD file of irregular hip geometry drawing each time script is run

Construction of Backing Angle by Joe Bartok

Draw lines in this order for irregular hip roof developmental geometry

Line A-B = Major Pitch Common Rafter Run
Line B-C = Minor Pitch Common Rafter Run
Line A-E = Major Pitch Rise
Line A-F = Major Pitch Rise
Line E-B = Major Pitch Common Rafter Length
Line A-C = Hip Rafter Run
Line F-C = Hip Rafter Length
Line C-D = Hip Rafter Length
Line B-D = Major Pitch Common Rafter Length
Line C-J = Hip Side Cut Rise
Line A-G = Hip Backing Rise
Line A-K = Hip Backing Rise
Line K-A � Line M-A = Hip Backing Angle
Line H-C � Line C-F = Hip Side Cut Angle At Ridge
Line F-A � Line C-A = Hip Pitch Angle
Line A-B � Line C-B = Major Plan Angle
Line B-D � Line C-B = Major Pitch Sheathing Angle
Line C-B � Line D-B = Major Pitch Jack Rafter Side Cut Angle

SBE Builders
5305 Laguna Ct.
Discovery Bay, California 94505
(925) 634-6022 • Fax: (925) 634-6022

Commercial & Residential Framing Contractor
Buil it Green Framing Contractor
Licensed Building Contractor
CA LIC.# 546126

Systematic Construction Logic

Awareness: Be aware of all new building materials and codes that effect the entire structure.
Understanding: Have a complete understanding of the construction sequences that effect the entire structure.
Optimizations: Pursue ideas that optimize the construction sequences that effect the entire structure.

Canadian & American Geometric Roof Framing Development
using a Steel Framing Square

Geometric Roof Framing Development for Irregular Hip Roof Calculations
using a Steel Framing Square

Geometric Development of Tetrahedron
using a Steel Framing Square

A geometrical and mathematical work on square tail fascia hip roofs
using a Steel Framing Square

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