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• R404.1.2.1

  Masonry Foundation Walls

  • Masonry foundation walls are sized from the plain or reinforced tables by wall height, backfill height and soil class; rubble stone isn't allowed in SDC D or for townhouses in C.
  • Unbalanced backfill is measured from outside grade down to the footing top or inside grade, or to the top of an interior slab bearing against the wall.

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

• R802.8.1

  Bridging

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

• R905.2.7

  Ice Barrier

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

• R602.10.2.2

  Locations of Braced Wall Panels

  • The first panel starts within 10 ft of each end of a braced wall line, and panels are no more than 20 ft apart.

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

• R1004.3

  Decorative Shrouds

  • No decorative shroud on a factory-built fireplace chimney unless listed for that system.

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

• R504.1.2

  Construction

  • Basement floor joists bear tight against wall studs or a band joist, plywood runs continuous over joints, and blocking carries end-wall thrust into the floor.

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

• R603.1

  General

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

• R610.5.6

  Thermal Barrier

  International Residential Code, 2024 · Chapter 6, Wall 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.