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• R1003.20

  Chimney Crickets

  • A chimney wider than 30 in parallel to the ridge that does not meet the ridge needs a flashed and counter-flashed cricket, its height a fraction of the width set by roof slope.

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

• R406.3.1

  Panel Joint Sealed

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

• R401.2

  Requirements

  • Foundations carry all R301 loads to the soil, and any fill that supports footings is engineered, placed and tested.

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

• R804

  Cold-Formed Steel Roof Framing

  International Residential Code, 2024 · Chapter 8, Roof-Ceiling ConstructionRead the full text (opens UpCodes in a new tab)

• R608.5.4

  Reinforcement Installation Details

  • Lap splices run 20 to 45 in and straight development 15 to 34 in by bar size and grade; cover and spacing rules match foundation walls.

  International Residential Code, 2024 · Chapter 6, Wall ConstructionRead the full text (opens UpCodes in a new tab)

• R905.2.8.3

  Sidewall Flashing

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

• R1006.2

  Exterior Air Intake

  • The air intake draws from outdoors or a naturally vented crawl or attic, not from the garage or basement, sits no higher than the firebox (unless listed), and has a 1/4 in corrosion-resistant screen.

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

• R802.1.7

  Prefabricated Wood I-Joists

  International Residential Code, 2024 · Chapter 8, Roof-Ceiling ConstructionRead 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.