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• R804.2

  Structural Framing

  • Steel roof members follow AISI S240/S230 for material, coating, size and labelling, in line with the framing below, with the same screw rules as steel floors and walls.

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

• R905.2.3

  Underlayment

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

• R406.1

  Concrete and Masonry Foundation Dampproofing

  • Below-grade concrete and masonry walls are dampproofed from grade down to the footing top or 6 in below the floor; masonry is first parged with 3/8 in of cement.

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

• R602.10.4

  Construction Methods for Braced Wall Panels

  • Bracing methods range from let-in braces and diagonal boards to panels, gypsum, plaster, hardboard and portal frames; panel bracing is at least 3/8 in, nailed 6 in edge and 12 in field.

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

• R507.2.5

  Alternate Materials

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

• R905.8.4

  Interlayment

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

• R318.7.5

  Stair Treads and Risers

  • Stair dimensions are measured on the structure, not the carpet.

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

• R405

  Foundation Drainage

  International Residential Code, 2024 · Chapter 4, FoundationsRead 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.