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• R802.11.1

  Truss Uplift Resistance

  • Truss tie-downs resist the uplift on the truss drawings (or the uplift table); rafter tie-downs use the table or a design, and roof beams are designed.

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

• R606.3.1

  Bed and Head Joints

  • Joints are 3/8 in, with the first bed joint 1/4 to 3/4 in; bearing walls hold bed joints within 1/8 in and head joints from -1/4 to +3/8 in.

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

• R505.1.1.1

  Alternate Applications

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

• R404.1.3.3.8

  Exterior Wall Coverings

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

• R703.6.4

  Bottom Courses

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

• R302.15

  Fire-Retardant-Treated Wood

  • Fire-retardant-treated wood has a flame spread index of 25 or less, and in an extended 20-minute test the flame front stays within 10.5 ft.
  • Each FRTW piece is labelled, and is dried to 19% moisture or less for lumber and 15% or less for panels; interior FRTW stays at or below 28% at 92% humidity.

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

• R701.1

  Application

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

• R302.9.4

  Alternative Test Method

  • Room-corner testing is an alternative: no flame to the ceiling at 40 kW, no flashover, peak heat release up to 800 kW, total smoke up to 1,000 m2.

  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.