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• R1001.3.1

  Vertical Reinforcing

  • Chimneys up to 40 in wide get four continuous No. 4 vertical bars, grouted but kept from bonding to the flue liner; add two bars for each extra flue or each extra 40 in of width or part of it.

  International Residential Code, 2024 · Chapter 10, Chimneys and FireplacesRead the full text (opens UpCodes in a new tab)

• R316.3

  Story Above Grade Plane

  • A habitable attic counts as a story unless it's no more than a third of the floor below (half if sprinklered), enclosed by the roof and knee walls, and within the walls below.

  International Residential Code, 2024 · Chapter 3, Building PlanningRead the full text (opens UpCodes in a new tab)

• R301.2.2.10

  Seismic Restraint of Appliances and Equipment

  • Fixed appliances in SDC D (and townhouses in C) are braced or anchored, unless they are light, low or squat enough to be exempt.

  International Residential Code, 2024 · Chapter 3, Building PlanningRead the full text (opens UpCodes in a new tab)

• R404.1.3.3.7.8

  Construction Joint Reinforcement

  • Construction joints in plain walls sit at lateral supports with No. 4 bars across them at 24 in or less, embedded 12 in each side; in reinforced walls, in the middle third of the span.

  International Residential Code, 2024 · Chapter 4, FoundationsRead the full text (opens UpCodes in a new tab)

• R903

  Weather Protection

  International Residential Code, 2024 · Chapter 9, Roof AssembliesRead the full text (opens UpCodes in a new tab)

• R507.2

  Materials

  International Residential Code, 2024 · Chapter 5, FloorsRead the full text (opens UpCodes in a new tab)

• R303.7

  Termite Damage

  International Residential Code, 2024 · Chapter 3, Building PlanningRead the full text (opens UpCodes in a new tab)

• R310.7.2

  Location

  International Residential Code, 2024 · Chapter 3, Building PlanningRead the full text (opens UpCodes in a new tab)

Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.