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• 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)

• R402.1.2

  Wood Treatment

  • Wood foundation lumber and plywood is treated and kiln-dried per AWPA U1 and labelled; cuts are soaked with copper naphthenate of at least 2% copper.

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

• R502.1.3

  Structural Glued-Laminated Timbers

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

• R803

  Roof Sheathing

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

• R804.3.2.4

  Roof Rafter to Ceiling Joist and Ridge Member Connection

  • Steel rafters tie to parallel ceiling joists across the building and to a C-plus-track ridge member with 2x2 clip angles and 2 to 7 No. 10 screws per leg by width and snow.

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

• R703.14.1.1

  Installation

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

• R302.3.2

  Fire-Resistance Rating

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

• R703.1

  General

  • Exterior walls form a weather-resistant envelope with flashing, a water-resistive barrier and a way for water behind the cladding to drain out.

  International Residential Code, 2024 · Chapter 7, Wall CoveringRead 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.