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• R608.1

  General

  • Exterior concrete walls follow this section, PCA 100, ACI 318 or ACI 332, with light-frame interiors; drawings needn't be sealed unless state law says so.

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

• R703.4

  Flashing

  • Corrosion-resistant flashing laps shingle-style at windows and doors, chimneys, copings and sills, above trim, at decks and stairs, at roof-wall joints and built-in gutters.

  International Residential Code, 2024 · Chapter 7, Wall CoveringRead the full text (opens UpCodes in a new tab)

• R703.10.2

  Lap Siding

  International Residential Code, 2024 · Chapter 7, Wall CoveringRead the full text (opens UpCodes in a new tab)

• R603.3.1.1

  Gable Endwalls

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

• R905.11

  Modified Bitumen Roofing

  • Modified bitumen, single-ply, spray foam and liquid-applied roofs all slope at least 1/4:12, meet their material standards and are wind-tested.

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

• R507.2.2.2

  Flame Spread Index

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

• R307.1

  General

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

• R318.7.5.3

  Nosings

  • Nosings project 3/4 to 1-1/4 in, uniform within 3/8 in, with a radius up to 9/16 in or a bevel up to 1/2 in; treads 11 in or deeper need none.

  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.