SBE Builders

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

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SBE Builders
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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