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Search the building code.

Every 2024 IRC section and the IBC as it loads, by number or topic, plus the local rules for your city. Free to search.

Detached houses, duplexes and townhouses up to 3 stories with their own exits use the IRC; every other building uses the IBC (IBC 101.2).

A random sample from 1,598 sections for San Antonio, TX, the 2024 IRC

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  • R703.11.2

    Installation Over Foam Plastic Sheathing

    • Vinyl over foam alone needs a wind rating from Table R703.11.2 unless backed by structural sheathing, rated by the maker, or the foam itself resists the wind.

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

  • R303.1

    General

    • Spray foam meets ICC 1100; foam sheathing meets ASTM C578 (EPS, XPS) or C1289 (polyiso); containers carry an approved agency label.

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

  • R602.3.3

    Bearing Studs

    • Framing spaced over 16 in sits within 5 in of studs at 24 in, unless the top plates are doubled 2x6 or 3x4, a third plate is added, or solid blocking reinforces the plate.

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

  • R319.1

    Emergency Escape and Rescue Opening Required

    • Every bedroom, basement, habitable attic and room with a sleeping loft needs an operable escape opening to a public way or a yard that reaches one; each basement bedroom needs its own.
    • Exempt: mechanical-only basements of 200 sq ft or less, ICC 500 shelters, and sprinklered basement bedrooms where the basement has two exits.

    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.

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