IRC 2021 · Model

Chapter 26: Mechanical Systems

20 sections in this chapter of the IRC 2021 model text — not Model's amended edition.

2603.4 Pipes through foundation walls A pipe that passes through a foundation wall shall be provided with a relieving arch, or a pipe sleeve shall be built into the foundation wall. The sleeve shall be two pipe sizes greater than the pipe passing through the wall.

Plain-English guides for this chapter
  1. 2603.4Pipes through foundation walls
  2. G2404.3(301.3) Listed and labeled
  3. G2404.4(301.8) Vibration isolation
  4. G2404.6(301.10) Wind resistance
  5. G2427.1Vent Sizing
  6. P2601.1Scope
  7. P2601.2Connections to drainage system
  8. P2601.3Flood hazard areas
  9. P2602.1General
  10. P2602.2Flood-resistant installation
  11. P2603.1General
  12. P2603.2Drilling and notching
  13. P2603.3Protection against corrosion
  14. P2603.5Freezing
  15. P2604.1Trenching and bedding
  16. P2605.1General
  17. P2606.1Sealing of annular spaces
  18. P2607.1Pipes penetrating roofs
  19. P2607.2Pipes penetrating exterior walls
  20. P2608.1General

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IRC 2021 Chapter 26: Mechanical Systems — Model Code | BuildSpec