Saturday, September 29, 2012

Calculate Irregular Hip Rafter Angles

Here's a couple of screen shots of the Rafter Tools for Anfroid App showing the Calculate Irregular Hip Rafters function. Hopefully, it's Erik proof.

Input variables

  1. Roof Eave Angle
  2. Major Pitch Angle
  3. Minor Pitch Angle
  4. Input Length
  5. Overhang Run
  6. Jack Rafter Spacing
  7. Hip Rafter Width
  8. Hip Rafter Depth
  9. Jack Rafter Width -- Common Rafter Width
  10. Major Rafter Depth
  11. Seat Cut Level Cut Length
  12. Ridge Width
For Input Length use any part of the hip rafter geometry as input to find the rest of the angles.
  • Common Rafter Run
  • Common Rafter Span
  • Common Rafter Rise
  • Common Rafter Length
  • Hip Rafter Run
  • Hip Rafter Length
  • Eave Wall Length -- Minor Run
Calculated Results for the Irregular Hip Rafters function. 

  1. Major Plan Angle
  2. Major Roof Pitch Angle
  3. Major Roof Pitch
  4. Minor Plan Angle
  5. Minor Roof Pitch Angle
  6. Minor Roof Pitch
  7. Major Rafter Run
  8. Major Theoretical Rafter Length
  9. Major Rafter Length To Ridge
  10. Major Rafter Seatcut Length
  11. Major Overhang Rafter Length
  12. Minor Rafter Run
  13. Minor Theoretical Rafter Length
  14. Minor Rafter Length To Ridge
  15. Minor Rafter Seatcut Length
  16. Minor Overhang Rafter Length
  17. Hip Rafter Angle
  18. Hip Rafter Pitch
  19. Hip Rafter Run
  20. Hip Rafter Theoretical Rafter Length
  21. Hip Rafter Length plumb to plumb along the center line to the ridge.
  22. Hip Rafter Long Point Length to Ridge -- long point of hip rafter sidecut
  23. Saw Blade Bevel Angle to cut the hip rafter sidecut angle along the hip rafter peak plumb line.
  24. Hip Rafter Overhang Length
  25. Major Hip Rafter Plumb Backing Mark Height
  26. Minor Hip Rafter Plumb Backing Mark Height
  27. Major Hip Rafter Perpendicular Backing Mark Height
  28. Minor Hip Rafter Perpendicular Backing Mark Height
  29. Major Pitch First Jack Rafter Length To Long point of miter cut.
  30. Major Pitch Jack Rafter Length Difference @ jack rafter spacing
  31. Major Pitch Jack Rafter Saw Blade Bevel Angle
  32. Minor Pitch First Jack Rafter Length To Long point of miter cut.
  33. Minor Pitch Jack Rafter Length Difference @ jack rafter spacing
  34. Minor Pitch Jack Rafter Saw Blade Bevel Angle
  35. Theoretical Common Rafte Rise
  36. Rise To Top Of Ridge
  37. HAP -- Height Above Plate (Heel Height)
  38. Major Rafter Plumb Cut Height
  39. Minor Rafter Plumb Cut Height
  40. Hip Rafter Plumb Cut Height
  41. Hip Rafter Drop For Roof Plane Alignment
  42. Hip Rafter Backing Offset Main Perpendicular to hip rafter run line.
  43. Hip Rafter Backing Offset Adjacent Perpendicular to hip rafter run line.
  44. Hip Rafter Backing Offset Main along eave line.
  45. Hip Rafter Backing Offset Adjacent along eave line.
  46. Hip Rafter Backing Angles
  47. Hip Rafter Plumb Backing Angle
  48. Hip Rafter Side Cut Angles
  49. Jack Rafter Side Cut Angles
  50. Roof Sheathing Angles
  51. Hip Rafter Purlin Housing Angles
  52. Hip Rafter Diamond Post Miter & Saw Blade Bevel Angles
  53. Plywood Roof Sheathing Offset Cut Line
  54. Valley Sleeper Miter & Saw Blade Bevel Angles
  55. Dormer Square Tail Miter & Saw Blade Bevel Angles
  56. Purlin Rafter Miter & Saw Blade Bevel Angles
  57. Purlin Layover cut perpendicular to roof surface plane




No comments:

Post a Comment