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In-Plant Construction Examples for Factory Built Structures

Milt Stoltzfus Area Training Supervisor PFS Corporation. In-Plant Construction Examples for Factory Built Structures. Example of Point Loads. 28’ wide by 40’ long box. Microlam bearing at single 2x12 matewall header. Example of Floor Loads at Rim. Two-Story.

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In-Plant Construction Examples for Factory Built Structures

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  1. Milt Stoltzfus Area Training Supervisor PFS Corporation In-PlantConstruction Examples for Factory Built Structures

  2. Example of Point Loads 28’ wide by 40’ long box Microlam bearing at single 2x12 matewall header

  3. Example of Floor Loads at Rim Two-Story Failure of Connector plate on top of column support. Uncovered Electrical Junction Box

  4. Example of Column Loads

  5. Example of a Rated Assembly R301.4 – Storage Load 20# Fire Separation Wall Piping not supported

  6. IBC

  7. R314.2.1 Minimum –3/4”, maximum 1-1/4” nosing

  8. R314.2 8-1/4” maximum high

  9. Chapter 3 Gable panel not fastened – loose in its opening

  10. P3105.2 Vent air below centerline of trap arm

  11. P3105.2 – Pipe Sizes must increase Illegal trap arm – center line of trap arm places vent opening lower than center

  12. P3201.5 – S traps prohibitedP3201.6 – Trap to protect Fixture Drain No primer on glue joints No insulation in floor NM cable sheathing (no interior cable) used as 3” DWV hanger

  13. R502.8.1 Hole drilled within 2” of edge of floor joist

  14. P2603.2.1 – Pipe ProtectionNEC 300.4 (A) (1)‏ Double rim of floor system at marriage line cut away for DWV run (to stay above floor joists)‏

  15. R502.8.1 Holes drilled within 2” of edge of floor joist Note double joist repair

  16. R502.8.1 & P3005.1 Notch shall not exceed 1/6 the depth Note vent elbow at the left

  17. P3005.1 3” vent elbow as a drain fitting

  18. P3114.4, P3201.5 & P3104.4 Air admittance valve below trap wier S trap Flat dry vent below the flood level of the fixture

  19. Good installation by HS students

  20. R602.8 Firestopping incomplete at hole through floor decking & wall plate

  21. P3201.5, P3101.2.1 & P3104.4 Tub trap = S trap No fire stopping (site installed)‏ No Vent Dry horizontal vent below the flood level of the fixture

  22. P3201.4 Building Trap – Not permitted

  23. P3104.2 Vent inside roof cavity does not slope to drain Slope of vent – belly in the middle

  24. Workmanship Oversized hole through the roof decking

  25. Rated Assembly One 2” pipe is missing fire collar at through-penetration R602.6 – Excessive notches in wall framing members Table P2605.1 – No mid-story support for PVC pipe P2603.2.1 – Pipe protection not sufficient / correct at wall plates

  26. P3201.5 No fire stopping at floor cut-out Tub Trap = S trap

  27. P3105.2 Shower Trap – Vent connection below the trap weir

  28. P3104.4 Horizontal dry vent below the flood level of the fixture

  29. R502.6 & R502.2.1 Improper installation of metal joist hangers Deck rim nailed directly through the siding

  30. R502.6 & R703.8 No hangers at the deck joist to deck rim No flashing at deck rim to house

  31. R502.6 No ledger or hangers at joists to mate wall rim joist Large gaps between halves 2 members not capable of supporting the imposed load/span All 4 members needed, tied together

  32. R502.6 Improper hanger installation / lack of effective bearing

  33. R303.3 Bath exhaust fan not connected to exhaust duct

  34. NEC 300.4 (A) (1)‏ NM cable through a hole in a 2x4 stud where the hole is less than 1-1/4” from the edge – no protection (plate, sleeve)‏

  35. NEC 320.23, 334.30 & 110.26 NM cables in/through attic access opening NM cables not secured within 12” of panel box Insufficient clearance at front (36” depth x 30” width)‏

  36. Good Installation Clean box, line side – Length of conductor

  37. NEC 314.17 (C)(Exception) & 300.14 Multiple cable entry at one knock out Ground connection/crimp inside the box How big will this box need to be? Answer – 32 cu. in.

  38. NEC 110.12 - Workmanship Pinched wire

  39. NEC 334.14 (B)‏ NM cable not fully protected, subject to physical damage

  40. NEC 310.15(B) (2)‏ Bundled cables – Note good gable panel fit / installation

  41. R404.1.6 & R408 Clearance to grade Crawlspace venting

  42. House wrap installed 1st floor (plant)‏ 2nd floor not done (on site)‏

  43. I can’t open my window Flipped wide eaves = lower side wall mount

  44. Table 602.3(1)‏ Plywood fastening / 16” at intermediate = NO

  45. Shingle Mfgr Installation Instructions Felt underlayment is under the drip edge

  46. Good roof cap installation

  47. BAD roof cap installation

  48. When you think you have seen it all!

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